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AWS ENiCrMo-10 vs. S21800 Stainless Steel

AWS ENiCrMo-10 belongs to the nickel alloys classification, while S21800 stainless steel belongs to the iron alloys. They have a modest 30% 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 (15, in this case) are not shown.

For each property being compared, the top bar is AWS ENiCrMo-10 and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 28
40
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
75
Tensile Strength: Ultimate (UTS), MPa 710
740

Thermal Properties

Latent Heat of Fusion, J/g 320
340
Melting Completion (Liquidus), °C 1550
1360
Melting Onset (Solidus), °C 1490
1310
Specific Heat Capacity, J/kg-K 420
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
15
Density, g/cm3 8.9
7.5
Embodied Carbon, kg CO2/kg material 12
3.1
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 300
150

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 20
24
Thermal Shock Resistance, points 19
17

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.1
Chromium (Cr), % 20 to 22.5
16 to 18
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 2.0 to 6.0
59.1 to 65.4
Manganese (Mn), % 0 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 12.5 to 14.5
0
Nickel (Ni), % 48.4 to 63
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 0.2
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0
Residuals, % 0 to 0.5
0