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EN 1.7390 Steel vs. AWS ERNiCr-3

EN 1.7390 steel belongs to the iron alloys classification, while AWS ERNiCr-3 belongs to the nickel alloys. 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 EN 1.7390 steel and the bottom bar is AWS ERNiCr-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
34
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
75
Tensile Strength: Ultimate (UTS), MPa 710
630

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.7
11
Embodied Energy, MJ/kg 23
160
Embodied Water, L/kg 69
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
19
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.1
Chromium (Cr), % 4.0 to 6.0
18 to 22
Cobalt (Co), % 0
0 to 0.12
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 91.9 to 95.3
0 to 3.0
Manganese (Mn), % 0.3 to 0.8
2.5 to 3.5
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
67 to 77.5
Niobium (Nb), % 0
2.0 to 3.0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0 to 0.75
Residuals, % 0
0 to 0.5