Properties

Metric

Imperial

Tensile strength

655 MPa

95000 psi

Yield strength

415 MPa

60200 psi

Bulk modulus (typical for steel)

140 GPa

20300 ksi

Shear modulus (typical for steel)

80 GPa

11600 ksi

Elastic modulus

190-210 GPa

27557-30458 ksi

Poisson’s ratio

0.27-0.30

0.27-0.30

Elongation at break (in 50 mm)

25.70%

25.70%

Hardness, Brinell

197

197

Hardness, Knoop (converted from Brinell hardness)

219

219

Hardness, Rockwell B (converted from Brinell hardness)

92

92

Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only)

13

13

Hardness, Vickers (converted from Brinell hardness)

207

207

Machinability (based on AISI 1212 as 100 machinability)

65

65