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AWS E3155 vs. SAE-AISI 1140 Steel

Both AWS E3155 and SAE-AISI 1140 steel are iron alloys. They have a modest 31% 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 (11, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
14 to 18
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
72
Tensile Strength: Ultimate (UTS), MPa 770
600 to 700

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
51
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
1.8
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 110
18
Embodied Water, L/kg 300
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
21 to 25
Strength to Weight: Bending, points 22
20 to 22
Thermal Diffusivity, mm2/s 3.3
14
Thermal Shock Resistance, points 20
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.1
0.37 to 0.44
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 23.3 to 36.3
98.4 to 98.9
Manganese (Mn), % 1.0 to 2.5
0.7 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13
Tungsten (W), % 2.0 to 3.0
0