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AWS E33-31 vs. S32950 Stainless Steel

Both AWS E33-31 and S32950 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 29
17
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
80
Tensile Strength: Ultimate (UTS), MPa 810
780

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 36
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
3.4
Embodied Energy, MJ/kg 86
47
Embodied Water, L/kg 260
180

Common Calculations

PREN (Pitting Resistance) 44
37
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
28
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 31 to 35
26 to 29
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
60.3 to 69.4
Manganese (Mn), % 2.5 to 4.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 2.0
1.0 to 2.5
Nickel (Ni), % 30 to 32
3.5 to 5.2
Nitrogen (N), % 0.3 to 0.5
0.15 to 0.35
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.9
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.010