SAE-AISI 1070 (C70, 1.1520, G10700) Carbon Steel

SAE-AISI 1070 is an alloy of iron, further classified as a carbon steel. 1070 is the SAE-AISI designation for this material. 1.1520 is the EN numeric designation. And G10700 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 Price3.0 % rel

Brinell Hardness190 to 230

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

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

Elongation at Break10 to 13 %

Modulus of Resilience (Unit Resilience)400 to 770 kJ/m3

Poisson's Ratio0.29

Specific Heat Capacity450 J/kg-K

Strength to Weight Ratio82 to 97 kN-m/kg

Tensile Strength: Ultimate (UTS)640 to 760 MPa (93 to 110 x 103 psi)

Tensile Strength: Yield (Proof)410 to 570 MPa (59 to 83 x 103 psi)

Thermal Expansion12 µm/m-K

Unit Rupture Work (Ultimate Resilience)56 to 62 MJ/m3

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

Alloy Composition

Iron (Fe)98.3 to 98.8 %

Manganese (Mn)0.6 to 0.9 %

Carbon (C)0.65 to 0.75 %

Sulfur (S)0 to 0.050 %

Phosphorus (P)0 to 0.040 %

Further Reading

ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

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

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