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SAE-AISI M3 Class 1 Steel vs. S82441 Stainless Steel

Both SAE-AISI M3 class 1 steel and S82441 stainless steel are iron alloys. They have 73% 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 SAE-AISI M3 class 1 steel and the bottom bar is S82441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
760

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1570
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
16
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 10
3.2
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 33
33
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
27
Strength to Weight: Bending, points 22 to 44
24
Thermal Diffusivity, mm2/s 7.2
3.9
Thermal Shock Resistance, points 24 to 67
21

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
23 to 25
Copper (Cu), % 0 to 0.25
0.1 to 0.8
Iron (Fe), % 76.9 to 82.9
62.6 to 70.2
Manganese (Mn), % 0.15 to 0.4
2.5 to 4.0
Molybdenum (Mo), % 4.8 to 6.5
1.0 to 2.0
Nickel (Ni), % 0 to 0.3
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.0050
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0