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Grade CW2M Nickel vs. ASTM A387 Grade 21L Class 1

Grade CW2M nickel belongs to the nickel alloys classification, while ASTM A387 grade 21L class 1 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 ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
21
Fatigue Strength, MPa 190
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
74
Tensile Strength: Ultimate (UTS), MPa 560
500
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 960
480
Melting Completion (Liquidus), °C 1520
1470
Melting Onset (Solidus), °C 1460
1430
Specific Heat Capacity, J/kg-K 430
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
4.1
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 12
1.8
Embodied Energy, MJ/kg 170
23
Embodied Water, L/kg 290
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
84
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 17
18
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.1
Chromium (Cr), % 15 to 17.5
2.8 to 3.3
Iron (Fe), % 0 to 2.0
94.4 to 96.1
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 15 to 17.5
0.9 to 1.1
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 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0 to 1.0
0