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AWS E3155 vs. ASTM A302 Alloy Steel

Both AWS E3155 and ASTM A302 alloy steel are iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
20 to 23
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 770
590 to 620

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
39 to 51
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.4 to 3.0
Density, g/cm3 8.4
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5 to 1.6
Embodied Energy, MJ/kg 110
20 to 21
Embodied Water, L/kg 300
48 to 50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
21 to 22
Strength to Weight: Bending, points 22
20 to 21
Thermal Diffusivity, mm2/s 3.3
10 to 14
Thermal Shock Resistance, points 20
17 to 18