{"id":10457,"date":"2026-09-09T15:58:51","date_gmt":"2026-09-09T07:58:51","guid":{"rendered":"https:\/\/am-material.com\/?p=10457"},"modified":"2026-07-22T16:11:05","modified_gmt":"2026-07-22T08:11:05","slug":"5-industry-applications-of-1045-prep-spherical-steel-powder-explained","status":"publish","type":"post","link":"https:\/\/am-material.com\/fr\/news\/5-industry-applications-of-1045-prep-spherical-steel-powder-explained\/","title":{"rendered":"5 Industry Applications of 1045 PREP Spherical Steel Powder Explained"},"content":{"rendered":"<h2 class=\"wp-block-heading\">R\u00e9ponse rapide<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1045 PREP spherical steel powder<\/strong> is the spherical powder form of AISI 1045, the classic medium-carbon engineering steel, produced by the plasma rotating electrode process with sphericity above 0.95 and oxygen at or below 200 ppm. With 0.43-0.50 percent carbon, the alloy hardens by quenching to 55-60 HRC at the surface while retaining a tough core, and its as-built or HIP-consolidated tensile strength of 650-900 MPa covers the broad middle ground of machinery duty. The five industry applications driving powder demand are shaft and spindle repair by laser cladding, gear and drivetrain component restoration, hydraulic and wear surface rebuilding, near-net-shape HIP machine parts, and wear-resistant coating on oil and gas hardware. The powder suits DED, HIP, and thermal spray routes, with typical cuts of 45-106 um and 53-150 um.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Propri\u00e9t\u00e9<\/th><th class=\"has-text-align-left\" data-align=\"left\">Valeur<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Syst\u00e8me d'alliage<\/td><td class=\"has-text-align-left\" data-align=\"left\">AISI 1045 medium-carbon steel<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Teneur en carbone<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.43-0.50 wt%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Densit\u00e9<\/td><td class=\"has-text-align-left\" data-align=\"left\">7.87 g\/cm3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Typical Powder Size (DED\/HIP)<\/td><td class=\"has-text-align-left\" data-align=\"left\">45-106 um, 53-150 um<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Sph\u00e9ricit\u00e9 (PREP)<\/td><td class=\"has-text-align-left\" data-align=\"left\">&gt;= 0,95<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Teneur en oxyg\u00e8ne<\/td><td class=\"has-text-align-left\" data-align=\"left\">&lt;= 200 ppm<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tensile Strength (as-built\/HIP)<\/td><td class=\"has-text-align-left\" data-align=\"left\">650-900 MPa<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Surface Hardness (quenched)<\/td><td class=\"has-text-align-left\" data-align=\"left\">55-60 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Avantage cl\u00e9<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hardenable machinery steel with premium powder flow and purity<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Is 1045 PREP Spherical Steel Powder and Its Material Benefits<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1045 PREP spherical steel powder<\/strong> appartient \u00e0 la <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/low-alloy-steel-powder\/\" rel=\"noreferrer noopener\">Poudre d'acier faiblement alli\u00e9<\/a> family and replicates the chemistry of AISI 1045 (1.0503 \/ C45), arguably the most widely used medium-carbon steel in general machinery. Shafts, axles, spindles, gears, and couplings have been made from it for generations because its carbon content sits at the practical sweet spot: high enough to harden meaningfully by induction or flame quenching, low enough to remain machinable, weldable with care, and affordable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/what-is-plasma-rotating-electrode-process-prep\/\" rel=\"noreferrer noopener\">proc\u00e9d\u00e9 \u00e0 \u00e9lectrode rotative \u00e0 plasma (PREP)<\/a> converts this familiar alloy into a premium spherical powder with qualities that matter in additive and repair processing:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Exceptional flowability.<\/strong> Sphericity above 0.95 and Hall flow rates of 12-15 s\/50g give stable, pulse-free feeding through DED nozzles and cladding heads, which is where most 1045 powder is consumed.<\/li>\n\n\n\n<li><strong>Crucible-free purity.<\/strong> PREP powder carries essentially no ceramic inclusions and very low oxygen, so deposited and HIP-consolidated material achieves fatigue performance close to wrought reference values.<\/li>\n\n\n\n<li><strong>Hardenability in the deposit.<\/strong> The medium carbon content lets repaired surfaces and consolidated parts be induction hardened after deposition, restoring or exceeding original surface specifications.<\/li>\n\n\n\n<li><strong>Chemistry matching for repair.<\/strong> Machinery components being repaired are themselves 1045 or a close sibling, so chemistry-matched powder avoids dilution-driven property mismatch at the bond line.<\/li>\n\n\n\n<li><strong>Cost position.<\/strong> The alloy is far cheaper than nickel or cobalt repair alloys, making it the economical choice whenever the base component does not require their corrosion or temperature capability.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The designation follows the AISI four-digit system, where 10 identifies plain carbon steel and 45 indicates roughly 0.45 percent carbon. Buyers will encounter the same alloy as C45, CK45, S45C, or 1.0503 depending on the regional standard, and machinery drawings from different markets frequently mix these designations. Powder orders should reference the governing specification, because sulfur and phosphorus limits differ slightly between registers and matter for deposit toughness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The practical limitation is equally worth stating: 1045 has no meaningful corrosion resistance and its hardenability is shallow, so it serves machinery duty in benign or protected environments, not sour-service, marine, or high-temperature applications.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"395\" height=\"313\" src=\"https:\/\/am-material.com\/wp-content\/uploads\/2026\/03\/Oxygen-free-Pure-Copper.jpg\" alt=\"\" class=\"wp-image-10074\" style=\"width:727px;height:auto\" title=\"\" srcset=\"https:\/\/am-material.com\/wp-content\/uploads\/2026\/03\/Oxygen-free-Pure-Copper.jpg 395w, https:\/\/am-material.com\/wp-content\/uploads\/2026\/03\/Oxygen-free-Pure-Copper-300x238.jpg 300w, https:\/\/am-material.com\/wp-content\/uploads\/2026\/03\/Oxygen-free-Pure-Copper-15x12.jpg 15w\" sizes=\"(max-width: 395px) 100vw, 395px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Donn\u00e9es sur la composition chimique et corr\u00e9lation avec les caract\u00e9ristiques de performance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 1045 composition is one of the simplest in the engineering steel family, and each element maps directly onto a processing or performance outcome.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chemical Composition of AISI 1045<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u00c9l\u00e9ment<\/th><th class=\"has-text-align-left\" data-align=\"left\">Min (wt%)<\/th><th class=\"has-text-align-left\" data-align=\"left\">Max (wt%)<\/th><th class=\"has-text-align-left\" data-align=\"left\">R\u00f4le<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Fe<\/td><td class=\"has-text-align-left\" data-align=\"left\">Balance<\/td><td class=\"has-text-align-left\" data-align=\"left\">Balance<\/td><td class=\"has-text-align-left\" data-align=\"left\">Ferrite-pearlite \/ martensite-forming base<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">C<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.43<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.50<\/td><td class=\"has-text-align-left\" data-align=\"left\">Controls hardenability, strength, and as-quenched hardness<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Mn<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.60<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.90<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aids hardenability and deoxidation; ties up sulfur as MnS<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">P<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.040<\/td><td class=\"has-text-align-left\" data-align=\"left\">Impurity limit; embrittlement control<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">S<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.050<\/td><td class=\"has-text-align-left\" data-align=\"left\">Impurity limit; MnS morphology affects machinability and toughness<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Si<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.15<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.35<\/td><td class=\"has-text-align-left\" data-align=\"left\">Deoxidizer; minor solid-solution strengthening<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">O<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Powder-quality limit; oxide films weaken deposit bonding<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The carbon content is the number that matters most, and it correlates directly with the alloy&#8217;s character. At 0.45 percent, a water- or oil-quenched surface reaches 55-60 HRC while the unhardened core stays at 25-35 HRC with good toughness, which is exactly the profile a shaft or gear tooth needs. Buyers should keep the certificate carbon figure in view because the hardening response shifts noticeably across the 0.43-0.50 window.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Manganese&#8217;s contribution is easy to overlook: beyond hardenability, it fixes sulfur as manganese sulfide rather than iron sulfide, preventing the hot shortness that would otherwise crack deposits during cladding. For powder processing specifically, silicon and manganese together govern deoxidation during electrode-bar melting, and the powder&#8217;s low final oxygen content reflects that control.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One welding-metallurgy point translates directly into additive practice: the alloy&#8217;s carbon equivalent places it in the preheat-required class, and deposition without adequate interpass temperature control invites hydrogen-induced cold cracking in the heat-affected zone. This is not a powder defect but a material characteristic, and it is why repair procedures for this alloy always specify preheat and interpass limits alongside powder quality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Propri\u00e9t\u00e9s physiques et m\u00e9caniques destin\u00e9es \u00e0 la conception technique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The data below reflect normalized and quenched-and-tempered reference conditions, with as-deposited and HIP-consolidated values varying with thermal history.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Propri\u00e9t\u00e9s principales<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Propri\u00e9t\u00e9<\/th><th class=\"has-text-align-left\" data-align=\"left\">Valeur<\/th><th class=\"has-text-align-left\" data-align=\"left\">Unit\u00e9<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Densit\u00e9<\/td><td class=\"has-text-align-left\" data-align=\"left\">7.87<\/td><td class=\"has-text-align-left\" data-align=\"left\">g\/cm3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Plage de fusion<\/td><td class=\"has-text-align-left\" data-align=\"left\">1460-1520<\/td><td class=\"has-text-align-left\" data-align=\"left\">C<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Conductivit\u00e9 thermique (RT)<\/td><td class=\"has-text-align-left\" data-align=\"left\">48-52<\/td><td class=\"has-text-align-left\" data-align=\"left\">W\/m\u00b7K<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Coefficient de dilatation thermique<\/td><td class=\"has-text-align-left\" data-align=\"left\">11.5-12.5 x 10-6<\/td><td class=\"has-text-align-left\" data-align=\"left\">\/K<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Module de Young<\/td><td class=\"has-text-align-left\" data-align=\"left\">200-210<\/td><td class=\"has-text-align-left\" data-align=\"left\">GPa<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Yield Strength (normalized)<\/td><td class=\"has-text-align-left\" data-align=\"left\">350-420<\/td><td class=\"has-text-align-left\" data-align=\"left\">MPa<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tensile Strength (normalized)<\/td><td class=\"has-text-align-left\" data-align=\"left\">620-700<\/td><td class=\"has-text-align-left\" data-align=\"left\">MPa<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tensile Strength (Q&amp;T \/ HIP + temper)<\/td><td class=\"has-text-align-left\" data-align=\"left\">750-900<\/td><td class=\"has-text-align-left\" data-align=\"left\">MPa<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Elongation (normalized)<\/td><td class=\"has-text-align-left\" data-align=\"left\">15-20<\/td><td class=\"has-text-align-left\" data-align=\"left\">%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Impact Energy (normalized, RT)<\/td><td class=\"has-text-align-left\" data-align=\"left\">25-45<\/td><td class=\"has-text-align-left\" data-align=\"left\">J<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Surface Hardness (induction quenched)<\/td><td class=\"has-text-align-left\" data-align=\"left\">55-60<\/td><td class=\"has-text-align-left\" data-align=\"left\">HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Core Hardness (normalized)<\/td><td class=\"has-text-align-left\" data-align=\"left\">25-35<\/td><td class=\"has-text-align-left\" data-align=\"left\">HRC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For design engineers, the profile to work with is the combination of moderate bulk strength and high surface hardness. A normalized or as-deposited component carries 620-700 MPa tensile strength with useful ductility, and localized induction hardening then delivers the wear-resistant surface for bearing journals, gear teeth, and sliding ways without a full quench of the entire part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fatigue performance deserves a note because it drives most machinery-shaft design. Wrought 1045 in the normalized condition carries a rotating-bending endurance limit around 280-320 MPa, and well-bonded, inclusion-free PREP powder deposits approach that figure, which is precisely why crucible-free powder quality matters in repair work. Deposits made with lower-purity powder show wider fatigue scatter, and critical rotating repairs should specify powder oxygen and inclusion data accordingly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Machinability completes the practical picture. The normalized alloy machines readily with conventional tooling, and deposits finish-machine to bearing-journal surface quality without difficulty, which keeps total repair cost low. After induction hardening, finish operations shift to grinding, and repair shops should plan the machining allowance accordingly, typically leaving 0.3-0.5 mm of deposit stock for post-hardening grinding on precision journals.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sp\u00e9cifications et classes de qualit\u00e9 pour les proc\u00e9d\u00e9s de fabrication additive<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">1045 PREP powder is supplied in fractions matched to DED, HIP, and spraying processes, with LPBF use being less common for this alloy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Caract\u00e9ristiques techniques disponibles<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Param\u00e8tres<\/th><th class=\"has-text-align-left\" data-align=\"left\">Norme\/Valeur<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">R\u00e9partition granulom\u00e9trique (DED\/gaine)<\/td><td class=\"has-text-align-left\" data-align=\"left\">53-150 um, 45-106 um<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Particle Size Distribution (HIP)<\/td><td class=\"has-text-align-left\" data-align=\"left\">45 \u00e0 106 \u00b5m<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Distribution granulom\u00e9trique (projection thermique)<\/td><td class=\"has-text-align-left\" data-align=\"left\">20 \u00e0 75 \u00b5m<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Particle Size Distribution (LPBF, on request)<\/td><td class=\"has-text-align-left\" data-align=\"left\">15 \u00e0 45 \u00b5m<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Sph\u00e9ricit\u00e9<\/td><td class=\"has-text-align-left\" data-align=\"left\">&gt;= 0,95<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Densit\u00e9 apparente<\/td><td class=\"has-text-align-left\" data-align=\"left\">&gt;= 4,4 g\/cm\u00b3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Densit\u00e9 du robinet<\/td><td class=\"has-text-align-left\" data-align=\"left\">&gt;= 5,0 g\/cm\u00b3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">D\u00e9bit dans le hall<\/td><td class=\"has-text-align-left\" data-align=\"left\">12-15 s\/50g<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Teneur en oxyg\u00e8ne<\/td><td class=\"has-text-align-left\" data-align=\"left\">&lt;= 200 ppm<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Taux de particules creuses<\/td><td class=\"has-text-align-left\" data-align=\"left\">Tr\u00e8s faible (solidification centrifuge)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Options de notation<\/td><td class=\"has-text-align-left\" data-align=\"left\">Standard AISI 1045; certified-repair grade with enhanced inclusion data<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Emballage<\/td><td class=\"has-text-align-left\" data-align=\"left\">Emballage sous vide, rinc\u00e9 \u00e0 l'argon, 5 \u00e0 50 kg<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A process-selection note helps buyers order correctly. The alloy&#8217;s medium carbon content makes it susceptible to cold cracking in LPBF unless the build plate is preheated to 200-300 C, so most additive use runs through DED and laser cladding, where the larger melt pool and slower effective cooling are more forgiving. HIP consolidation for near-net shapes is the second major route, followed by full quench-and-temper heat treatment. LPBF cuts are available for research programs and for shops operating preheated systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The certified-repair grade adds the documentation repair shops need for critical rotating equipment: enhanced inclusion inspection, X-ray CT hollow-particle screening, and lot-level mechanical test data on reference deposits, all referenced to the powder batch number.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Storage and handling are uncomplicated. Unlike aluminium or titanium powders, 1045 presents no combustible-dust hazard class of practical concern at these particle sizes, but the powder should still be stored sealed and dry, because surface rust on individual particles degrades both flow and deposit bonding. Partially used containers should be resealed under argon, and any powder showing visible discoloration after extended exposure should be requalified before use on fatigue-critical repairs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tapes de fabrication, de la fusion \u00e0 l'obtention du produit final sous forme de poudre<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Production begins with a vacuum- or inert-atmosphere-melted 1045 electrode bar, with the medium-carbon chemistry requiring disciplined deoxidation practice so that silicon and manganese tie up oxygen before it can form inclusions. The bar rotates at high speed in the PREP chamber while a plasma arc melts its tip, and centrifugal force ejects droplets that spheroidize and solidify in the argon atmosphere without contacting any crucible material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This production route gives 1045 powder three qualities that <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/gas-atomization-powders-process\/\" rel=\"noreferrer noopener\">atomisation par gaz (AG)<\/a> approximates but does not fully match: near-zero ceramic inclusion content, very few hollow particles because no atomizing gas is entrained, and sphericity above 0.95 that translates directly into the 12-15 s\/50g flow rates cladding operations depend on.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Post-atomization processing follows a controlled sequence:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Classification<\/strong> by sieving isolates the specified size fractions and removes fines and oversize particles.<\/li>\n\n\n\n<li><strong>V\u00e9rification du d\u00e9bit et de la densit\u00e9<\/strong> confirms Hall flow rate, apparent density, and tap density against the release specification.<\/li>\n\n\n\n<li><strong>Analyse chimique<\/strong> certifies carbon, manganese, silicon, phosphorus, sulfur, and oxygen content on every lot, with carbon reported to two decimal places given its hardening significance.<\/li>\n\n\n\n<li><strong>Contr\u00f4le morphologique<\/strong> by SEM verifies sphericity, satellite content, and overall surface condition.<\/li>\n\n\n\n<li><strong>Contr\u00f4le qualit\u00e9<\/strong> on certified-repair lots adds cross-section metallography or X-ray CT inspection for hollow particles.<\/li>\n\n\n\n<li><strong>Emballage inerte<\/strong> in argon-flushed, vacuum-sealed containers protects the powder against surface oxidation during storage and international shipping.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The carbon certification point is worth repeating for buyers: because the alloy&#8217;s entire hardening behavior hangs on a 0.07 percent-wide carbon window, lot-level chemistry verification is not a formality but the control that keeps repair-deposit hardness predictable across campaigns.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Applications par secteur : a\u00e9rospatiale, m\u00e9decine et \u00e9nergie<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">1045 PREP spherical steel powder serves five distinct application areas across machinery-intensive industries. Sector context is available on the <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/applications\/\" rel=\"noreferrer noopener\">applications<\/a> page.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Shaft and spindle repair.<\/strong> The flagship application. Worn bearing journals, seal areas, and coupling surfaces on motor shafts, pump shafts, and machine-tool spindles are rebuilt by laser cladding with chemistry-matched 1045 powder, then machined back and induction hardened to original specification. The economics are compelling: cladding restores a worn shaft at 20-40 percent of replacement cost with lead times of days rather than weeks, and PREP powder purity protects the fatigue-critical journal fillets where stress concentration makes inclusion content decisive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Gear and drivetrain component restoration.<\/strong> Worn or damaged gear teeth, splines, and sprocket surfaces are rebuilt tooth-by-tooth by DED, then re-machined and surface hardened. Mining, cement, and marine drivetrains are the largest users, where gear replacement lead times often stretch to months.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Hydraulic and wear surface rebuilding.<\/strong> Hydraulic cylinder rods, plungers, and press components receive 1045 deposits as a tough, hardenable substrate beneath hard chrome or as the functional surface itself, an increasingly common choice as hard-chrome processes face environmental restriction in several major markets.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Near-net-shape HIP machine parts.<\/strong> Small-to-medium machine components such as couplings, flanges, and custom tooling bodies are HIP-consolidated from the powder and finished by machining, cutting material waste versus machining from solid bar, particularly for complex external geometry where buy-to-fly ratios would otherwise be poor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Oil, gas, and energy wear surfaces.<\/strong> Valve stems, pump components, and drilling-tool wear surfaces in non-sour service receive 1045 cladding where toughness and hardenability matter more than corrosion resistance, often as a substrate layer under harder facing alloys.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Notably absent from the list are medical and food-contact uses: the alloy&#8217;s lack of corrosion resistance excludes it, and that boundary should be stated plainly in any application discussion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Across these five areas, the economic pattern repeats: 1045 powder is chosen when the component is already medium-carbon steel, the environment is benign or protected, and the alternative is replacement rather than an exotic alloy upgrade. Repair shops standardizing on a small powder inventory typically pair 1045 with one stainless and one nickel-alloy grade, covering the great majority of incoming machinery work with three feedstocks.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comparaison avec d'autres mat\u00e9riaux et tableau des donn\u00e9es de performance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selection around 1045 powder typically benchmarks it against 4140 for higher hardenability, 316L for corrosion-resistant repair, and H13 tool steel for hot-work wear surfaces.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1045 PREP Powder vs Alternative Repair and Machinery Alloys<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Propri\u00e9t\u00e9<\/th><th class=\"has-text-align-left\" data-align=\"left\">AISI 1045<\/th><th class=\"has-text-align-left\" data-align=\"left\">AISI 4140<\/th><th class=\"has-text-align-left\" data-align=\"left\">Inox 316L<\/th><th class=\"has-text-align-left\" data-align=\"left\">Acier \u00e0 outils H13<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Densit\u00e9 (g\/cm\u00b3)<\/td><td class=\"has-text-align-left\" data-align=\"left\">7.87<\/td><td class=\"has-text-align-left\" data-align=\"left\">7.85<\/td><td class=\"has-text-align-left\" data-align=\"left\">8.0<\/td><td class=\"has-text-align-left\" data-align=\"left\">7.8<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Carbon (wt%)<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.43-0.50<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.38-0.43<\/td><td class=\"has-text-align-left\" data-align=\"left\">&lt;=0.03<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.32-0.45<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tensile (MPa, reference)<\/td><td class=\"has-text-align-left\" data-align=\"left\">620-900<\/td><td class=\"has-text-align-left\" data-align=\"left\">850-1100<\/td><td class=\"has-text-align-left\" data-align=\"left\">550-650<\/td><td class=\"has-text-align-left\" data-align=\"left\">1500-1900 (Q&amp;T)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Surface Hardness (HRC, quenched)<\/td><td class=\"has-text-align-left\" data-align=\"left\">55-60<\/td><td class=\"has-text-align-left\" data-align=\"left\">50-55<\/td><td class=\"has-text-align-left\" data-align=\"left\">Not hardenable<\/td><td class=\"has-text-align-left\" data-align=\"left\">50-54<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">R\u00e9sistance \u00e0 la corrosion<\/td><td class=\"has-text-align-left\" data-align=\"left\">Pauvre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Pauvre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Excellent<\/td><td class=\"has-text-align-left\" data-align=\"left\">Mod\u00e9r\u00e9<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Through-Hardening Depth<\/td><td class=\"has-text-align-left\" data-align=\"left\">Shallow<\/td><td class=\"has-text-align-left\" data-align=\"left\">Mod\u00e9r\u00e9<\/td><td class=\"has-text-align-left\" data-align=\"left\">N\/A<\/td><td class=\"has-text-align-left\" data-align=\"left\">Deep<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Deposition Crack Sensitivity<\/td><td class=\"has-text-align-left\" data-align=\"left\">Moderate (preheat advised)<\/td><td class=\"has-text-align-left\" data-align=\"left\">Mod\u00e9r\u00e9e-\u00e9lev\u00e9e<\/td><td class=\"has-text-align-left\" data-align=\"left\">Faible<\/td><td class=\"has-text-align-left\" data-align=\"left\">High (preheat required)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Co\u00fbt relatif de la poudre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Faible<\/td><td class=\"has-text-align-left\" data-align=\"left\">Low-Medium<\/td><td class=\"has-text-align-left\" data-align=\"left\">Moyen<\/td><td class=\"has-text-align-left\" data-align=\"left\">Moyen-\u00e9lev\u00e9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Against 4140, 1045 offers similar repair economics with slightly lower strength and shallower hardening, and the choice usually follows the base material being repaired. Against 316L, it wins on hardness and cost but loses entirely on corrosion, so deposits exposed to moisture or chemicals belong in the stainless or nickel-alloy class. Against H13, it is far easier to deposit without cracking and far cheaper, but it cannot survive the thermal fatigue of die-casting and forging die surfaces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The selection rule is simple: match the repair powder to the parent steel where possible, choose 1045 for medium-carbon machinery components in benign environments, and step up to 4140, 316L, or H13 only when strength, corrosion, or thermal-fatigue demands make the base match inadequate. Where the parent material is unknown, a quick spark test or portable spectrometer reading before ordering powder prevents the dilution mismatches that cause soft spots or cracking at the bond line, a five-minute check that routinely saves entire repair jobs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Notre entreprise<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/about\/\" rel=\"noreferrer noopener\">Shanghai Truer Technology Co.<\/a> est un fournisseur chinois sp\u00e9cialis\u00e9 dans la fabrication additive, qui propose \u00e0 la fois des \u00e9quipements de production de poudre PREP et des poudres m\u00e9talliques sph\u00e9riques de haute qualit\u00e9. Fond\u00e9e en 2009, l'entreprise propose \u00e0 la fois <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/gas-atomization-powders-process\/\" rel=\"noreferrer noopener\">atomisation par gaz (AG)<\/a> et <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/what-is-plasma-rotating-electrode-process-prep\/\" rel=\"noreferrer noopener\">PR\u00c9PARATION<\/a> des capacit\u00e9s de fabrication couvrant les alliages de nickel, les alliages de titane, les alliages d'aluminium, les aciers inoxydables, les alliages de cobalt, les alliages de cuivre, les alliages \u00e0 haute entropie et les mat\u00e9riaux sp\u00e9ciaux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Truer propose des services de d\u00e9veloppement d'alliages sur mesure, de prototypage en petites s\u00e9ries et de production \u00e0 grande \u00e9chelle pour des secteurs tels que l'a\u00e9rospatiale, les implants m\u00e9dicaux, le p\u00e9trole et le gaz, ainsi que l'automobile. L'entreprise g\u00e8re un centre d'innovation commun d\u00e9di\u00e9 \u00e0 l'impression 3D m\u00e9tallique, en collaboration avec des instituts de recherche de premier plan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For inquiries about 1045 PREP spherical steel powder or other metal powder requirements, <a target=\"_blank\" href=\"https:\/\/am-material.com\/fr\/contact-us\/\" rel=\"noreferrer noopener\">contacter l'\u00e9quipe<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1: What is the typical particle size distribution for 1045 PREP spherical steel powder?<\/strong> A: The standard cuts are 45-106 um for HIP and 53-150 um for DED and laser cladding, with 20-75 um fractions for thermal spray and 15-45 um available on request for LPBF research programs. PREP produces a narrow, coarse distribution with very few fines and excellent flowability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2: Can 1045 powder be used in LPBF systems?<\/strong> A: It can, with caution. The medium carbon content makes the alloy crack-sensitive in powder bed fusion, so builds require a 200-300 C preheated build plate and controlled interpass temperature throughout the job. Most additive use of this alloy runs through DED and laser cladding, which are more forgiving of its hardenability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3: What certifications does 1045 PREP powder come with?<\/strong> A: Every lot ships with a certificate of analysis covering carbon to two decimal places, the full element window, oxygen content, PSD data, flow rate, and density values. The certified-repair grade adds enhanced inclusion inspection, X-ray CT hollow-particle screening, and reference-deposit mechanical data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q4: What is the MOQ for ordering 1045 PREP powder?<\/strong> A: Standard quantities start at 5-10 kg for repair-shop trials and parameter development, which comfortably covers several shaft-repair jobs. Production volumes are supplied in 25-50 kg argon-flushed, vacuum-sealed containers, with pricing that makes the powder an economical alternative to nickel-alloy repair feedstock.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q5: Can the composition of 1045 be customized?<\/strong> A: Yes. Carbon can be positioned within the 0.43-0.50 percent window to target a specific as-quenched hardness, and manganese can be adjusted for hardenability. Closely related grades such as 1040 or 1050 can also be produced through the custom alloy development service.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q6: What is the typical lead time for 1045 PREP powder orders?<\/strong> A: Stock fractions usually ship within one to two weeks, making the powder practical for reactive maintenance schedules. Custom chemistry positioning and certified-repair grades typically require four to six weeks including electrode bar preparation, PREP conversion, and the extended certification package.<\/p>","protected":false},"excerpt":{"rendered":"<p>Quick Answer 1045 PREP spherical steel powder is the spherical powder form of AISI 1045, the classic medium-carbon engineering steel, produced by the plasma rotating electrode process with sphericity above 0.95 and oxygen at or below 200 ppm. With 0.43-0.50 percent carbon, the alloy hardens by quenching to 55-60 HRC at the surface while retaining [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":10047,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1],"tags":[],"post_folder":[],"class_list":["post-10457","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/posts\/10457","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/comments?post=10457"}],"version-history":[{"count":1,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/posts\/10457\/revisions"}],"predecessor-version":[{"id":10458,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/posts\/10457\/revisions\/10458"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/media\/10047"}],"wp:attachment":[{"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/media?parent=10457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/categories?post=10457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/tags?post=10457"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/am-material.com\/fr\/wp-json\/wp\/v2\/post_folder?post=10457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}