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SAE-AISI M4 Steel vs. Nickel 242

SAE-AISI M4 steel belongs to the iron alloys classification, while nickel 242 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is nickel 242.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 76
84
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
820

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1610
1380
Melting Onset (Solidus), °C 1560
1290
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 25
11
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
75
Density, g/cm3 8.3
9.0
Embodied Carbon, kg CO2/kg material 14
14
Embodied Energy, MJ/kg 210
180
Embodied Water, L/kg 110
290

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 26 to 72
25
Strength to Weight: Bending, points 23 to 45
21
Thermal Diffusivity, mm2/s 6.9
3.1
Thermal Shock Resistance, points 24 to 68
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 1.3 to 1.4
0 to 0.030
Chromium (Cr), % 3.8 to 4.8
7.0 to 9.0
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 75.9 to 81.4
0 to 2.0
Manganese (Mn), % 0.15 to 0.4
0 to 0.8
Molybdenum (Mo), % 4.3 to 5.5
24 to 26
Nickel (Ni), % 0 to 0.3
59.3 to 69
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0