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ASTM A302 Alloy Steel vs. AWS E70C-Ni2

Both ASTM A302 alloy steel and AWS E70C-Ni2 are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is AWS E70C-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 590 to 620
560
Tensile Strength: Yield (Proof), MPa 350 to 390
450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39 to 51
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
3.3
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
1.6
Embodied Energy, MJ/kg 20 to 21
22
Embodied Water, L/kg 48 to 50
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 22
20
Strength to Weight: Bending, points 20 to 21
19
Thermal Diffusivity, mm2/s 10 to 14
14
Thermal Shock Resistance, points 17 to 18
17