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SAE-AISI M42 Steel vs. EN 1.4596 Stainless Steel

Both SAE-AISI M42 steel and EN 1.4596 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (4, 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 1.4596 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
1030 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1540
1450
Melting Onset (Solidus), °C 1490
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.4
3.5
Embodied Energy, MJ/kg 100
48
Embodied Water, L/kg 140
130

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
36 to 56
Strength to Weight: Bending, points 24 to 48
29 to 39
Thermal Shock Resistance, points 25 to 71
35 to 54

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.1
Carbon (C), % 1.1 to 1.2
0 to 0.015
Chromium (Cr), % 3.5 to 4.3
11.5 to 12.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
73.4 to 76.4
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 9.0 to 10
1.9 to 2.2
Nickel (Ni), % 0 to 0.3
9.2 to 10.2
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.15 to 0.65
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0.28 to 0.4
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0