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EN 1.3955 Stainless Steel vs. Grade CW2M Nickel

EN 1.3955 stainless steel belongs to the iron alloys classification, while grade CW2M nickel 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 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3955 stainless steel and the bottom bar is grade CW2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 23
23
Fatigue Strength, MPa 150
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
83
Tensile Strength: Ultimate (UTS), MPa 520
560
Tensile Strength: Yield (Proof), MPa 220
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 930
960
Melting Completion (Liquidus), °C 1430
1520
Melting Onset (Solidus), °C 1380
1460
Specific Heat Capacity, J/kg-K 480
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
70
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.2
12
Embodied Energy, MJ/kg 45
170
Embodied Water, L/kg 140
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
17
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 16.5 to 18.5
15 to 17.5
Iron (Fe), % 65.5 to 73.5
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
15 to 17.5
Nickel (Ni), % 10 to 12
60.1 to 70
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0 to 1.0