18Ni300 also is called as 1.2709 and also named by Maraging 300 which is a nickel-cobalt-molybdenum maraging steel powder, known for its ultra-high strength, good toughness, and excellent printability in LPBF with low cracking susceptibility. It commonly was taken as benchmark material for high strength 3D printed tooling parts.

Maraging 300 can achieve tensile strength more than 2000Mpa and hardness 520HV after simple aging treatment and maintain its impact toughness. Maraging 300 is low carbon alloy without carbide formation and its strength derives from intermetallic precipitation.

It is used for high-temperature aerospace and racing components (brackets, gears) and tooling applications.

Normally our 18Ni300 powders are produced by gas atomization with spherical morphology and varies particle size, such as 15-45um, 15-53um or 20-63um for LPBF, 45-105um for DED.