Weight% | C | Si | Mn | S | P | Co | Ni | Mo | Ti | Al | Fe |
Maraging 300 | 0.03 max | 0.10 max | 0.10 max | 0.010 max | 0.010 max | 8.0-9.5 | 18.0-19.0 | 4.6-5.2 | 0.55-0.80 | 0.05-0.15 | Bal |
Material | 0.2 % Yield Strength ksi | Ultimate Tensile Strength ksi | Elongation in 4D(%) | Reduction of Area % | Hardness HRC |
Maraging 300, Solution Annealed 1500° F (816°C), 1hr, AC | 120 | 150 | 16 | 70 | 30 |
Solution Annealed Plus Aged 900 ° F (482°C), 3 hrs AC | 280 | 290 | 8 | 40 | 52 |
Maraging 300 alloy steel can be welded by conventional methods.
Maraging 300 alloy steel can be forged as for stainless 304 alloy.
Maraging 300 alloy steel has good machinability characteristics.
Maraging 300 alloy steel cannot be heat treated for hardening except by aging.
Maraging 300 alloy steel can be hot worked in temperatures ranging 260 to 93°C (500 to 200°F). Age hardening takes place when this alloy steel is exposed to these temperatures for a long time.
Maraging 300 alloy steel can be hardened by aging and cold working.
Maraging 300 alloy steel has high hardness and strength properties and is thus suitable for an aging heat treatment at 482°C (900°F).