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SAE-AISI M42 Steel vs. N08135 Stainless Steel

Both SAE-AISI M42 steel and N08135 stainless steel are iron alloys. They have 46% of their average alloy composition in common. There are 20 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 M42 steel and the bottom bar is N08135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
570

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1540
1440
Melting Onset (Solidus), °C 1490
1390
Specific Heat Capacity, J/kg-K 450
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
39
Density, g/cm3 8.2
8.2
Embodied Carbon, kg CO2/kg material 7.4
6.8
Embodied Energy, MJ/kg 100
94
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 38
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
19
Strength to Weight: Bending, points 24 to 48
19
Thermal Shock Resistance, points 25 to 71
13

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.030
Chromium (Cr), % 3.5 to 4.3
20.5 to 23.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.7
Iron (Fe), % 76.3 to 81
30.2 to 42.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 9.0 to 10
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
33 to 38
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.65
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.2 to 1.9
0.2 to 0.8
Vanadium (V), % 1.0 to 1.4
0