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SAE-AISI M3 Class 1 Steel vs. Grade CW6MC Nickel

SAE-AISI M3 class 1 steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
540

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1610
1480
Melting Onset (Solidus), °C 1570
1430
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
80
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 10
14
Embodied Energy, MJ/kg 150
200
Embodied Water, L/kg 100
290

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 72
18
Strength to Weight: Bending, points 22 to 44
17
Thermal Diffusivity, mm2/s 7.2
2.8
Thermal Shock Resistance, points 24 to 67
15

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.060
Chromium (Cr), % 3.8 to 4.5
20 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.9 to 82.9
0 to 5.0
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.8 to 6.5
8.0 to 10
Nickel (Ni), % 0 to 0.3
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0