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ASTM A514 Steel vs. SAE-AISI 1078 Steel

Both ASTM A514 steel and SAE-AISI 1078 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A514 steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 250
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 21
11 to 14
Fatigue Strength, MPa 470 to 540
270 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 490 to 520
440 to 470
Tensile Strength: Ultimate (UTS), MPa 790 to 830
730 to 780
Tensile Strength: Yield (Proof), MPa 690 to 770
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
250
Maximum Temperature: Mechanical, °C 400 to 440
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 37 to 51
49
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.8
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.8
1.8
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6 to 1.8
1.4
Embodied Energy, MJ/kg 21 to 25
18
Embodied Water, L/kg 48 to 57
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 170
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 1280 to 1590
490 to 860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 29
26 to 28
Strength to Weight: Bending, points 24 to 25
23 to 24
Thermal Diffusivity, mm2/s 10 to 14
13
Thermal Shock Resistance, points 23 to 24
25 to 26