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

SAE-AISI 6150 is an alloy of iron, further classified as a low-alloy steel. 6150 is the SAE-AISI designation 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 below shows ranges encompassing all variants. For more specific values, follow the links in the Variant Materials section.

Material Properties

Base Metal Price3.8 % rel

Brinell Hardness200 to 350

Density7.8 g/cm3 (490 lb/ft3)

Elastic (Young's, Tensile) Modulus210 GPa (30 x 106 psi)

Elongation at Break15 to 23 %

Modulus of Resilience (Unit Resilience)420 to 3200 kJ/m3

Poisson's Ratio0.29

Specific Heat Capacity450 J/kg-K

Strength to Weight Ratio86 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 (61 to 170 x 103 psi)

Thermal Expansion12 µm/m-K

Unit Rupture Work (Ultimate Resilience)88 to 130 MJ/m3

The length of each bar compares the given value to the highest value in the database.

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 %

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