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S32950 Stainless Steel vs. AWS ENiCrMo-4

S32950 stainless steel belongs to the iron alloys classification, while AWS ENiCrMo-4 belongs to the nickel alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is S32950 stainless steel and the bottom bar is AWS ENiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 17
28
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
84
Tensile Strength: Ultimate (UTS), MPa 780
790

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1430
1590
Melting Onset (Solidus), °C 1390
1530
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
70
Density, g/cm3 7.7
9.0
Embodied Carbon, kg CO2/kg material 3.4
13
Embodied Energy, MJ/kg 47
170
Embodied Water, L/kg 180
280

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 28
24
Strength to Weight: Bending, points 24
21
Thermal Shock Resistance, points 21
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 26 to 29
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 60.3 to 69.4
4.0 to 7.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.5
15 to 17
Nickel (Ni), % 3.5 to 5.2
49.9 to 63.5
Nitrogen (N), % 0.15 to 0.35
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.2
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5