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SAE-AISI M3 Class 1 Steel vs. S35315 Stainless Steel

Both SAE-AISI M3 class 1 steel and S35315 stainless steel are iron alloys. They have 42% 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 S35315 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 770 to 2150
740

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1610
1370
Melting Onset (Solidus), °C 1570
1330
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 10
5.7
Embodied Energy, MJ/kg 150
81
Embodied Water, L/kg 100
220

Common Calculations

PREN (Pitting Resistance) 33
27
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
26
Strength to Weight: Bending, points 22 to 44
23
Thermal Diffusivity, mm2/s 7.2
3.1
Thermal Shock Resistance, points 24 to 67
17

Alloy Composition

Carbon (C), % 1.0 to 1.1
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.1
Chromium (Cr), % 3.8 to 4.5
24 to 26
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.9 to 82.9
33.6 to 40.6
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
34 to 36
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
1.2 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0