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S64512 Stainless Steel vs. SAE-AISI M1 Steel

Both S64512 stainless steel and SAE-AISI M1 steel are iron alloys. They have 89% 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 S64512 stainless steel and the bottom bar is SAE-AISI M1 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 76
77
Tensile Strength: Ultimate (UTS), MPa 1140
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1460
1560
Melting Onset (Solidus), °C 1420
1510
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 28
29
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
18
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.3
7.0
Embodied Energy, MJ/kg 47
99
Embodied Water, L/kg 110
98

Common Calculations

PREN (Pitting Resistance) 18
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
25 to 73
Strength to Weight: Bending, points 31
22 to 45
Thermal Diffusivity, mm2/s 7.5
8.0
Thermal Shock Resistance, points 42
23 to 66

Alloy Composition

Carbon (C), % 0.080 to 0.15
0.78 to 0.88
Chromium (Cr), % 11 to 12.5
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.6 to 84.7
81 to 84.8
Manganese (Mn), % 0.5 to 0.9
0.15 to 0.4
Molybdenum (Mo), % 1.5 to 2.0
8.2 to 9.2
Nickel (Ni), % 2.0 to 3.0
0 to 0.3
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.35
0.2 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0.25 to 0.4
1.0 to 1.4