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EN 1.4971 Stainless Steel vs. AWS ERNiCrFe-6

EN 1.4971 stainless steel belongs to the iron alloys classification, while AWS ERNiCrFe-6 belongs to the nickel alloys. They have 41% of their average alloy composition in common. There are 22 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 1.4971 stainless steel and the bottom bar is AWS ERNiCrFe-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
34
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
74
Tensile Strength: Ultimate (UTS), MPa 800
630

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
55
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 7.6
9.8
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 300
260

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 3.4
3.3
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.080
Chromium (Cr), % 20 to 22.5
14 to 17
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 24.3 to 37.1
0 to 8.0
Manganese (Mn), % 0 to 2.0
2.0 to 2.7
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
67 to 81.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.5
Tungsten (W), % 2.0 to 3.0
0
Residuals, % 0
0 to 0.5