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AWS ERNiMo-3 vs. EN 1.4470 Stainless Steel

AWS ERNiMo-3 belongs to the nickel alloys classification, while EN 1.4470 stainless steel belongs to the iron alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 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 ERNiMo-3 and the bottom bar is EN 1.4470 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 83
80
Tensile Strength: Ultimate (UTS), MPa 770
680

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1600
1450
Melting Onset (Solidus), °C 1540
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
17
Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 15
3.6
Embodied Energy, MJ/kg 190
49
Embodied Water, L/kg 270
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 24
18

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
21 to 23
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 4.0 to 7.0
63.7 to 71.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 23 to 26
2.5 to 3.5
Nickel (Ni), % 53.7 to 69
4.5 to 6.5
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 0.6
0
Residuals, % 0 to 0.5
0