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SAE-AISI A2 Steel vs. Grade CW12MW Nickel

SAE-AISI A2 steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A2 steel and the bottom bar is grade CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
85
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
560

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 2.7
13
Embodied Energy, MJ/kg 38
180
Embodied Water, L/kg 73
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 25 to 73
17
Strength to Weight: Bending, points 23 to 46
17
Thermal Shock Resistance, points 25 to 71
16

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.12
Chromium (Cr), % 4.8 to 5.5
15.5 to 17.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 89.4 to 93.3
4.5 to 7.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.4
16 to 18
Nickel (Ni), % 0 to 0.3
49.2 to 60.1
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.8 to 5.3
Vanadium (V), % 0.15 to 0.5
0.2 to 0.4