AISI 6150 Springs

AISI 6150 is a fine-grained, highly abrasion resistant carbon-chromium alloy steel. It provides outstanding shock resistance and toughness when heat treated.

Technical Specification AISI 6150
Nominal Composition

C: 0.48 - 0.53

Mn:.0.70 – 0.90

Cr: 0.8 - 1.1


0.283 lb./in3

Modulus of Elasticity (E)

29.7x 103 ksi

Modulus of Rigidity (G)

11.6 x 103 ksi

Electrical Resistivity

234 µΩ.cm

Thermal Conductivity

323 Btu/(hr/ft2/in/°F)

Min Size

0.005 in (0.130 mm)


This alloy is used in automobile engineering for the production of medium and large cross section forged components, which require high tensile strength and toughness.