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EN 1.4659 Stainless Steel vs. SAE-AISI M42 Steel

Both EN 1.4659 stainless steel and SAE-AISI M42 steel are iron alloys. They have 53% 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 EN 1.4659 stainless steel and the bottom bar is SAE-AISI M42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 900
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1480
1540
Melting Onset (Solidus), °C 1430
1490
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 12
20
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
30
Density, g/cm3 8.2
8.2
Embodied Carbon, kg CO2/kg material 6.5
7.4
Embodied Energy, MJ/kg 89
100
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 54
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31
28 to 79
Strength to Weight: Bending, points 25
24 to 48
Thermal Diffusivity, mm2/s 3.2
5.4
Thermal Shock Resistance, points 19
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.020
1.1 to 1.2
Chromium (Cr), % 23 to 25
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 1.0 to 2.0
0 to 0.25
Iron (Fe), % 35.7 to 45.7
76.3 to 81
Manganese (Mn), % 2.0 to 4.0
0.15 to 0.4
Molybdenum (Mo), % 5.5 to 6.5
9.0 to 10
Nickel (Ni), % 21 to 23
0 to 0.3
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.7
0.15 to 0.65
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 1.5 to 2.5
1.2 to 1.9
Vanadium (V), % 0
1.0 to 1.4