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EN 1.4905 Stainless Steel vs. SAE-AISI M42 Steel

Both EN 1.4905 stainless steel and SAE-AISI M42 steel are iron alloys. They have 86% 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 EN 1.4905 stainless steel and the bottom bar is SAE-AISI M42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 740
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1480
1540
Melting Onset (Solidus), °C 1440
1490
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 26
20
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.8
7.4
Embodied Energy, MJ/kg 40
100
Embodied Water, L/kg 90
140

Common Calculations

PREN (Pitting Resistance) 15
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
28 to 79
Strength to Weight: Bending, points 23
24 to 48
Thermal Diffusivity, mm2/s 7.0
5.4
Thermal Shock Resistance, points 25
25 to 71

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
1.1 to 1.2
Chromium (Cr), % 8.5 to 9.5
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 86.2 to 88.8
76.3 to 81
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.9 to 1.1
9.0 to 10
Nickel (Ni), % 0.1 to 0.4
0 to 0.3
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.1 to 0.5
0.15 to 0.65
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0.9 to 1.1
1.2 to 1.9
Vanadium (V), % 0.18 to 0.25
1.0 to 1.4