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AWS E3155 vs. SAE-AISI A3 Steel

Both AWS E3155 and SAE-AISI A3 steel are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is SAE-AISI A3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 770
700 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
37
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
6.0
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.7
4.4
Embodied Energy, MJ/kg 110
67
Embodied Water, L/kg 300
78

Common Calculations

PREN (Pitting Resistance) 35
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
25 to 77
Strength to Weight: Bending, points 22
23 to 48
Thermal Diffusivity, mm2/s 3.3
10
Thermal Shock Resistance, points 20
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.1
1.2 to 1.3
Chromium (Cr), % 20 to 22.5
4.8 to 5.5
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 23.3 to 36.3
88.7 to 92
Manganese (Mn), % 1.0 to 2.5
0.4 to 0.6
Molybdenum (Mo), % 2.5 to 3.5
0.9 to 1.4
Nickel (Ni), % 19 to 21
0 to 0.3
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
0.8 to 1.4