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EN 1.4515 Stainless Steel vs. SAE-AISI M42 Steel

Both EN 1.4515 stainless steel and SAE-AISI M42 steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4515 stainless steel and the bottom bar is SAE-AISI M42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 730
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1440
1540
Melting Onset (Solidus), °C 1390
1490
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 16
20
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
30
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.8
7.4
Embodied Energy, MJ/kg 53
100
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 38
38
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
28 to 79
Strength to Weight: Bending, points 23
24 to 48
Thermal Diffusivity, mm2/s 4.3
5.4
Thermal Shock Resistance, points 20
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.030
1.1 to 1.2
Chromium (Cr), % 24.5 to 26.5
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0.8 to 1.3
0 to 0.25
Iron (Fe), % 58.4 to 66.6
76.3 to 81
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 2.5 to 3.5
9.0 to 10
Nickel (Ni), % 5.5 to 7.0
0 to 0.3
Nitrogen (N), % 0.12 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.65
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
1.2 to 1.9
Vanadium (V), % 0
1.0 to 1.4