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SAE-AISI 6150 (1.8159, 51CrV4, G61500) Chromium-Vanadium Steel

SAE-AISI 6150 steel is an alloy steel formulated for primary forming into wrought products. 6150 is the designation in both the SAE and AISI systems for this material. 1.8159 is the EN numeric designation. And G61500 is the UNS number. It has three common variants, each represented as a separate material. The material properties section shows ranges encompassing all variants. To see the details of each variant on a separate page, follow the links in the Variant Materials section further below.

Mechanical Properties

Graph bars compare SAE-AISI 6150 steel to other materials. From top to bottom: wrought alloy steel, iron alloys, and the entire database.

Brinell Hardness

200 to 350

Elastic (Young's, Tensile) Modulus

190 GPa 27 x 106 psi

Elongation at Break

15 to 23 %

Modulus of Resilience (Unit Resilience)

460 to 3590 kJ/m3

Poisson's Ratio

0.29

Shear Modulus

73 GPa 11 x 106 psi

Shear Strength

420 to 730 MPa 62 to 110 x 103 psi

Strength to Weight Ratio

86 to 150 kN-m/kg

Tensile Strength: Ultimate (UTS)

670 to 1200 MPa 97 to 170 x 103 psi

Tensile Strength: Yield (Proof)

420 to 1160 MPa 60 to 170 x 103 psi

Unit Rupture Work (Ultimate Resilience)

130 to 180 MJ/m3

Thermal Properties

Melting Completion (Liquidus)

1460 °C 2650 °F

Melting Onset (Solidus)

1410 °C 2580 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Expansion

12 to 13 µm/m-K

Other Material Properties

Base Metal Price

3.8 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

2.0 kg CO2/kg material

Embodied Energy

28 MJ/kg 12 x 103 BTU/lb

Embodied Water

51 L/kg 6.1 gal/lb

Alloy Composition

Iron (Fe) 96.7 to 97.7
Chromium (Cr) 0.8 to 1.1
Manganese (Mn) 0.7 to 0.9
Carbon (C) 0.48 to 0.53
Silicon (Si) 0.15 to 0.35
Vanadium (V) 0.15 to 0.3
Sulfur (S) 0 to 0.040
Phosphorus (P) 0 to 0.035

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Variant Materials

Similar Alloys

Further Reading

ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades

Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008

Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005