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SAE-AISI M42 Steel vs. EN 1.4982 Stainless Steel

Both SAE-AISI M42 steel and EN 1.4982 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, 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 1.4982 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
76
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
750

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1490
1390
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 20
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
22
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
4.9
Embodied Energy, MJ/kg 100
71
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 38
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
27
Strength to Weight: Bending, points 24 to 48
23
Thermal Diffusivity, mm2/s 5.4
3.4
Thermal Shock Resistance, points 25 to 71
17

Alloy Composition

Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 1.1 to 1.2
0.070 to 0.13
Chromium (Cr), % 3.5 to 4.3
14 to 16
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
61.8 to 69.7
Manganese (Mn), % 0.15 to 0.4
5.5 to 7.0
Molybdenum (Mo), % 9.0 to 10
0.8 to 1.2
Nickel (Ni), % 0 to 0.3
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0.15 to 0.4