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AWS ERNiCrCoMo-1 vs. EN 1.4646 Stainless Steel

AWS ERNiCrCoMo-1 belongs to the nickel alloys classification, while EN 1.4646 stainless steel belongs to the iron alloys. They have a modest 25% 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 ERNiCrCoMo-1 and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 710
750

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Melting Completion (Liquidus), °C 1420
1390
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 75
13
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 10
2.8
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 350
160

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23
27
Strength to Weight: Bending, points 21
24
Thermal Shock Resistance, points 19
16

Alloy Composition


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Aluminum (Al), % 0.8 to 1.5
0
Carbon (C), % 0.050 to 0.15
0.020 to 0.1
Chromium (Cr), % 20 to 24
17 to 19
Cobalt (Co), % 10 to 15
0
Copper (Cu), % 0 to 0.5
1.5 to 3.0
Iron (Fe), % 0 to 3.0
59 to 67.3
Manganese (Mn), % 0 to 1.0
10.5 to 12.5
Molybdenum (Mo), % 8.0 to 10
0 to 0.5
Nickel (Ni), % 42.7 to 61.2
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.6
0
Residuals, % 0 to 0.5
0