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EN 1.4508 Stainless Steel vs. AWS ENiCrMo-4

EN 1.4508 stainless steel belongs to the iron alloys classification, while AWS ENiCrMo-4 belongs to the nickel alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 EN 1.4508 stainless steel and the bottom bar is AWS ENiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
84
Tensile Strength: Ultimate (UTS), MPa 570
790

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1450
1590
Melting Onset (Solidus), °C 1400
1530
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
70
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 4.0
13
Embodied Energy, MJ/kg 55
170
Embodied Water, L/kg 160
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 17
22

Alloy Composition


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Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 18 to 20
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 61.2 to 69.9
4.0 to 7.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 3.0 to 3.5
15 to 17
Nickel (Ni), % 9.0 to 12
49.9 to 63.5
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5