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SAE-AISI 1140 Steel vs. Grade CW12MW Nickel

SAE-AISI 1140 steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel 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 SAE-AISI 1140 steel and the bottom bar is grade CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 14 to 18
4.6
Fatigue Strength, MPa 230 to 370
130
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
85
Tensile Strength: Ultimate (UTS), MPa 600 to 700
560
Tensile Strength: Yield (Proof), MPa 340 to 570
310

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1420
1560
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 1.4
13
Embodied Energy, MJ/kg 18
180
Embodied Water, L/kg 46
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 93
22
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 870
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 21 to 25
17
Strength to Weight: Bending, points 20 to 22
17
Thermal Shock Resistance, points 18 to 21
16

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.12
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 98.4 to 98.9
4.5 to 7.5
Manganese (Mn), % 0.7 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
16 to 18
Nickel (Ni), % 0
49.2 to 60.1
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030
Tungsten (W), % 0
3.8 to 5.3
Vanadium (V), % 0
0.2 to 0.4