Grade 350 Maraging Steel

Grade 350 maraging steel is an alloy of iron, further classified as a maraging (18Ni) steel.

It has two common variants, each represented as a separate material.

Material Properties

Compressive (Crushing) Strength750 to 2400 MPa (110 to 350 x 103 psi)

Elastic (Young's, Tensile) Modulus200 GPa (29 x 106 psi)

Elongation at Break6.0 to 18 %

Rockwell C Hardness35 to 58

Tensile Strength: Ultimate (UTS)1140 to 2420 MPa (170 to 350 x 103 psi)

Tensile Strength: Yield (Proof)830 to 2300 MPa (120 to 330 x 103 psi)

Further Reading

Maraging Steels: Modelling of Microstructure, Properties and Applications, Wei Sha and Zhanli Guo, 2009

Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993