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ASTM A572 Grade 65 (S 460 AP) HSLA Steel

ASTM A572 grade 65 is a type of ASTM A572 HSLA steel. It is furnished in the as-fabricated (no temper or treatment) condition. It has the highest strength and lowest ductility compared to the other variants of ASTM A572 HSLA steel.

Mechanical Properties

Graph bars compare ASTM A572 grade 65 to other iron alloys (top) and the entire database (bottom).

Elastic (Young's, Tensile) Modulus

210 GPa 30 x 106 psi

Elongation at Break

18 %

Modulus of Resilience (Unit Resilience)

640 kJ/m3

Poisson's Ratio

0.29

Strength to Weight Ratio

81 kN-m/kg

Tensile Strength: Ultimate (UTS)

630 MPa 92 x 103 psi

Tensile Strength: Yield (Proof)

520 MPa 75 x 103 psi

Unit Rupture Work (Ultimate Resilience)

110 MJ/m3

Other Material Properties

Base Metal Price

3.4 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

1.6 kg CO2/kg material

Embodied Energy

22 MJ/kg 9.3 x 103 BTU/lb

Embodied Water

47 L/kg 5.6 gal/lb

Specific Heat Capacity

450 J/kg-K 0.11 BTU/lb-°F

Thermal Expansion

12 µm/m-K

Alloy Composition

Iron (Fe) 97.3 to 99.5
Manganese (Mn) 0.5 to 1.7
Silicon (Si) 0 to 0.4
Carbon (C) 0 to 0.26
Vanadium (V) 0 to 0.15
Sulfur (S) 0 to 0.050
Niobium (Nb) 0 to 0.050
Phosphorus (P) 0 to 0.040
Titanium (Ti) 0 to 0.040
Nitrogen (N) 0 to 0.015

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

Followup Questions

Further Reading

ASTM A572: Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

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

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