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AWS ENiCrCoMo-1 vs. S43940 Stainless Steel

AWS ENiCrCoMo-1 belongs to the nickel alloys classification, while S43940 stainless steel belongs to the iron alloys. They have a modest 22% 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 AWS ENiCrCoMo-1 and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
21
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 82
77
Tensile Strength: Ultimate (UTS), MPa 710
490

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 75
12
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 11
2.6
Embodied Energy, MJ/kg 140
38
Embodied Water, L/kg 340
120

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23
18
Strength to Weight: Bending, points 21
18
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 21 to 26
17.5 to 18.5
Cobalt (Co), % 9.0 to 15
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 5.0
78.2 to 82.1
Manganese (Mn), % 0.3 to 2.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 38.6 to 61.7
0
Niobium (Nb), % 0 to 1.0
0.3 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.1 to 0.6
Residuals, % 0 to 0.5
0