ASTM A514 Alloy Steel
ASTM A514 steel is an alloy steel formulated for primary forming into wrought products. It can have a very high tensile strength among the wrought alloy steels in the same category in the database.
The properties of ASTM A514 steel include eight common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare ASTM A514 steel to: wrought alloy steels in the same category (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
240 to 250
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
18 to 21 %
Fatigue Strength
470 to 540 MPa 68 to 78 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
73 GPa 11 x 106 psi
Shear Strength
490 to 520 MPa 71 to 75 x 103 psi
Tensile Strength: Ultimate (UTS)
790 to 830 MPa 110 to 120 x 103 psi
Tensile Strength: Yield (Proof)
690 to 770 MPa 100 to 110 x 103 psi
Thermal Properties
Latent Heat of Fusion
250 to 260 J/g
Maximum Temperature: Mechanical
400 to 440 °C 760 to 830 °F
Melting Completion (Liquidus)
1460 °C 2660 to 2670 °F
Melting Onset (Solidus)
1420 °C 2580 to 2590 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
37 to 51 W/m-K 22 to 29 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
7.2 to 7.6 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.3 to 8.8 % IACS
Otherwise Unclassified Properties
Base Metal Price
2.3 to 3.8 % relative
Density
7.8 to 7.9 g/cm3 490 lb/ft3
Embodied Carbon
1.6 to 1.8 kg CO2/kg material
Embodied Energy
21 to 25 MJ/kg 9.2 to 11 x 103 BTU/lb
Embodied Water
48 to 57 L/kg 5.8 to 6.8 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
140 to 170 MJ/m3
Resilience: Unit (Modulus of Resilience)
1280 to 1590 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
28 to 29 points
Strength to Weight: Bending
24 to 25 points
Thermal Diffusivity
10 to 14 mm2/s
Thermal Shock Resistance
23 to 24 points
Followup Questions
Further Reading
ASTM A514: Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005
Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008
Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015