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AISI 317LM Stainless Steel vs. SAE-AISI M42 Steel

Both AISI 317LM stainless steel and SAE-AISI M42 steel are iron alloys. They have 69% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 317LM 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 0.28
0.29
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 590
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1540
Melting Onset (Solidus), °C 1410
1490
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 14
20
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 4.8
7.4
Embodied Energy, MJ/kg 65
100
Embodied Water, L/kg 170
140

Common Calculations

PREN (Pitting Resistance) 35
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
28 to 79
Strength to Weight: Bending, points 20
24 to 48
Thermal Diffusivity, mm2/s 3.8
5.4
Thermal Shock Resistance, points 13
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.030
1.1 to 1.2
Chromium (Cr), % 18 to 20
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 54.4 to 64.5
76.3 to 81
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 4.0 to 5.0
9.0 to 10
Nickel (Ni), % 13.5 to 17.5
0 to 0.3
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.2 to 1.9
Vanadium (V), % 0
1.0 to 1.4