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EN 1.4308 Stainless Steel vs. AWS ERNiCrFe-6

EN 1.4308 stainless steel belongs to the iron alloys classification, while AWS ERNiCrFe-6 belongs to the nickel alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4308 stainless steel and the bottom bar is AWS ERNiCrFe-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 510
630

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1420
1370
Melting Onset (Solidus), °C 1380
1320
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.0
9.8
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 150
260

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 4.1
3.3
Thermal Shock Resistance, points 11
19

Alloy Composition


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Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 18 to 20
14 to 17
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 65.9 to 74
0 to 8.0
Manganese (Mn), % 0 to 1.5
2.0 to 2.7
Nickel (Ni), % 8.0 to 11
67 to 81.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.5
Residuals, % 0
0 to 0.5