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AWS ERNiMo-3 vs. EN 1.6781 Steel

AWS ERNiMo-3 belongs to the nickel alloys classification, while EN 1.6781 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiMo-3 and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 83
73
Tensile Strength: Ultimate (UTS), MPa 770
830

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1540
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
5.0
Density, g/cm3 9.1
7.9
Embodied Carbon, kg CO2/kg material 15
1.9
Embodied Energy, MJ/kg 190
25
Embodied Water, L/kg 270
60

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 21
25
Thermal Shock Resistance, points 24
24

Alloy Composition

Carbon (C), % 0 to 0.12
0.15 to 0.19
Chromium (Cr), % 4.0 to 6.0
1.3 to 1.8
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 4.0 to 7.0
92.6 to 94.6
Manganese (Mn), % 0 to 1.0
0.55 to 0.8
Molybdenum (Mo), % 23 to 26
0.45 to 0.6
Nickel (Ni), % 53.7 to 69
3.0 to 3.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 0.6
0
Residuals, % 0 to 0.5
0