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EN 1.7231 Steel vs. AWS ENiCrFe-3

EN 1.7231 steel belongs to the iron alloys classification, while AWS ENiCrFe-3 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.7231 steel and the bottom bar is AWS ENiCrFe-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 12
34
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 790 to 930
630

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
65
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.5
11
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 51
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 28 to 33
21
Strength to Weight: Bending, points 24 to 27
19
Thermal Shock Resistance, points 23 to 27
18

Alloy Composition


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Carbon (C), % 0.38 to 0.45
0 to 0.1
Chromium (Cr), % 0.8 to 1.2
13 to 17
Cobalt (Co), % 0
0 to 0.12
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 96.4 to 98.1
0 to 10
Manganese (Mn), % 0.6 to 1.0
5.0 to 9.5
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
52 to 81
Niobium (Nb), % 0
1.0 to 2.5
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tantalum (Ta), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 1.0
Residuals, % 0
0 to 0.5