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SAE-AISI M41 Steel vs. AISI 317 Stainless Steel

Both SAE-AISI M41 steel and AISI 317 stainless steel are iron alloys. They have 72% 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 SAE-AISI M41 steel and the bottom bar is AISI 317 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 77
79
Tensile Strength: Ultimate (UTS), MPa 800 to 2290
580 to 710

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1600
1400
Melting Onset (Solidus), °C 1550
1380
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 33
21
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 9.1
4.3
Embodied Energy, MJ/kg 140
59
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 28
31
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 76
20 to 25
Strength to Weight: Bending, points 23 to 46
20 to 22
Thermal Diffusivity, mm2/s 6.0
4.1
Thermal Shock Resistance, points 25 to 71
12 to 15

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
18 to 20
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.4 to 78.9
58 to 68
Manganese (Mn), % 0.2 to 0.6
0 to 2.0
Molybdenum (Mo), % 3.3 to 4.3
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 6.3 to 7.0
0
Vanadium (V), % 1.8 to 2.3
0