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SAE-AISI M6 Steel vs. S35135 Stainless Steel

Both SAE-AISI M6 steel and S35135 stainless steel are iron alloys. They have 46% of their average alloy composition in common. There are 20 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 SAE-AISI M6 steel and the bottom bar is S35135 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
79
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
590

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1560
1430
Melting Onset (Solidus), °C 1510
1380
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
37
Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 8.0
6.8
Embodied Energy, MJ/kg 120
94
Embodied Water, L/kg 160
220

Common Calculations

PREN (Pitting Resistance) 28
37
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28 to 73
20
Strength to Weight: Bending, points 24 to 45
19
Thermal Shock Resistance, points 26 to 68
13

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
20 to 25
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 68.8 to 74.6
28.3 to 45
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
4.0 to 4.8
Nickel (Ni), % 0
30 to 38
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.45
0.6 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.4 to 1.0
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0