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SAE-AISI M36 Steel vs. S31277 Stainless Steel

Both SAE-AISI M36 steel and S31277 stainless steel are iron alloys. They have 51% 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 M36 steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2190
860

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1410
Specific Heat Capacity, J/kg-K 440
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 38
36
Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 9.5
6.7
Embodied Energy, MJ/kg 140
90
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 31
51
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 27 to 72
29
Strength to Weight: Bending, points 23 to 44
25
Thermal Shock Resistance, points 25 to 68
19

Alloy Composition

Carbon (C), % 0.8 to 0.9
0 to 0.020
Chromium (Cr), % 3.8 to 4.5
20.5 to 23
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0.5 to 1.5
Iron (Fe), % 70.1 to 75.5
35.5 to 46.2
Manganese (Mn), % 0.15 to 0.4
0 to 3.0
Molybdenum (Mo), % 4.6 to 5.5
6.5 to 8.0
Nickel (Ni), % 0 to 0.3
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 5.5 to 6.5
0
Vanadium (V), % 1.8 to 2.3
0