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Annealed SAE-AISI M7 vs. Annealed S35000 Stainless Steel

Both annealed SAE-AISI M7 and annealed S35000 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is annealed SAE-AISI M7 and the bottom bar is annealed S35000 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
78
Tensile Strength: Ultimate (UTS), MPa 760
1570

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1560
1460
Melting Onset (Solidus), °C 1510
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 28
16
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
14
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 8.9
3.2
Embodied Energy, MJ/kg 130
44
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 35
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
56
Strength to Weight: Bending, points 23
38
Thermal Diffusivity, mm2/s 7.8
4.4
Thermal Shock Resistance, points 24
51

Alloy Composition

Carbon (C), % 1.0 to 1.1
0.070 to 0.11
Chromium (Cr), % 3.5 to 4.0
16 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.8 to 83.8
72.7 to 76.9
Manganese (Mn), % 0.15 to 0.4
0.5 to 1.3
Molybdenum (Mo), % 8.2 to 9.2
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 0.55
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.8 to 2.3
0