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SAE-AISI M42 Steel vs. EN 1.4565 Stainless Steel

Both SAE-AISI M42 steel and EN 1.4565 stainless steel are iron alloys. They have 55% 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 1.4565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
880

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1540
1420
Melting Onset (Solidus), °C 1490
1380
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 20
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 30
28
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.4
5.4
Embodied Energy, MJ/kg 100
74
Embodied Water, L/kg 140
210

Common Calculations

PREN (Pitting Resistance) 38
47
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
31
Strength to Weight: Bending, points 24 to 48
26
Thermal Diffusivity, mm2/s 5.4
3.2
Thermal Shock Resistance, points 25 to 71
21

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.030
Chromium (Cr), % 3.5 to 4.3
24 to 26
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
41.2 to 50.7
Manganese (Mn), % 0.15 to 0.4
5.0 to 7.0
Molybdenum (Mo), % 9.0 to 10
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
16 to 19
Niobium (Nb), % 0
0 to 0.15
Nitrogen (N), % 0
0.3 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.65
0 to 1.0
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