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Annealed SAE-AISI M50 vs. Annealed S35000 Stainless Steel

Both annealed SAE-AISI M50 and annealed S35000 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common. There are 24 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 annealed SAE-AISI M50 and the bottom bar is annealed S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 720
1570

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1440
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 35
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
3.2
Embodied Energy, MJ/kg 74
44
Embodied Water, L/kg 83
130

Common Calculations

PREN (Pitting Resistance) 19
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
56
Strength to Weight: Bending, points 23
38
Thermal Diffusivity, mm2/s 9.7
4.4
Thermal Shock Resistance, points 21
51

Alloy Composition

Carbon (C), % 0.78 to 0.88
0.070 to 0.11
Chromium (Cr), % 3.8 to 4.5
16 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87 to 90.4
72.7 to 76.9
Manganese (Mn), % 0.15 to 0.45
0.5 to 1.3
Molybdenum (Mo), % 3.9 to 4.8
2.5 to 3.2
Nickel (Ni), % 0 to 0.3
4.0 to 5.0
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.8 to 1.3
0