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SAE-AISI M42 Steel vs. EN 1.4762 Stainless Steel

Both SAE-AISI M42 steel and EN 1.4762 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 22 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 M42 steel and the bottom bar is EN 1.4762 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
620

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1540
1410
Melting Onset (Solidus), °C 1490
1370
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 20
17
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 30
12
Density, g/cm3 8.2
7.6
Embodied Carbon, kg CO2/kg material 7.4
2.5
Embodied Energy, MJ/kg 100
37
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 38
25
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 28 to 79
23
Strength to Weight: Bending, points 24 to 48
21
Thermal Diffusivity, mm2/s 5.4
4.6
Thermal Shock Resistance, points 25 to 71
22

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.7
Carbon (C), % 1.1 to 1.2
0 to 0.12
Chromium (Cr), % 3.5 to 4.3
23 to 26
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
69.7 to 75.1
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.65
0.7 to 1.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0