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Grade CW2M Nickel vs. EN 1.7725 Steel

Grade CW2M nickel belongs to the nickel alloys classification, while EN 1.7725 steel belongs to the iron alloys. 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 grade CW2M nickel and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
14
Fatigue Strength, MPa 190
390 to 550
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
73
Tensile Strength: Ultimate (UTS), MPa 560
830 to 1000
Tensile Strength: Yield (Proof), MPa 310
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 960
440
Melting Completion (Liquidus), °C 1520
1460
Melting Onset (Solidus), °C 1460
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.9
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 12
1.8
Embodied Energy, MJ/kg 170
24
Embodied Water, L/kg 290
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
980 to 1940
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
29 to 35
Strength to Weight: Bending, points 17
25 to 28
Thermal Shock Resistance, points 16
24 to 29

Alloy Composition

Carbon (C), % 0 to 0.020
0.27 to 0.34
Chromium (Cr), % 15 to 17.5
1.3 to 1.7
Iron (Fe), % 0 to 2.0
95.7 to 97.5
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 15 to 17.5
0.3 to 0.5
Nickel (Ni), % 60.1 to 70
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0
0.050 to 0.15