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S31730 Stainless Steel vs. AWS E120C-K4

Both S31730 stainless steel and AWS E120C-K4 are iron alloys. They have 61% of their average alloy composition in common. There are 23 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 S31730 stainless steel and the bottom bar is AWS E120C-K4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
17
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
950
Tensile Strength: Yield (Proof), MPa 200
840

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.6
1.7
Embodied Energy, MJ/kg 63
23
Embodied Water, L/kg 180
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
160
Resilience: Unit (Modulus of Resilience), kJ/m3 99
1880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
34
Strength to Weight: Bending, points 18
27
Thermal Shock Resistance, points 12
28

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17 to 19
0.15 to 0.65
Copper (Cu), % 4.0 to 5.0
0 to 0.35
Iron (Fe), % 52.4 to 61
92.1 to 98.4
Manganese (Mn), % 0 to 2.0
0.75 to 2.3
Molybdenum (Mo), % 3.0 to 4.0
0.25 to 0.65
Nickel (Ni), % 15 to 16.5
0.5 to 2.5
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.025
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5