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SAE-AISI M36 Steel vs. S40977 Stainless Steel

Both SAE-AISI M36 steel and S40977 stainless steel are iron alloys. They have 78% 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 M36 steel and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 810 to 2190
510

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1600
1440
Melting Onset (Solidus), °C 1550
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 19
25
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 38
6.5
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.5
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 140
97

Common Calculations

PREN (Pitting Resistance) 31
12
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 27 to 72
18
Strength to Weight: Bending, points 23 to 44
18
Thermal Diffusivity, mm2/s 5.1
6.7
Thermal Shock Resistance, points 25 to 68
18

Alloy Composition

Carbon (C), % 0.8 to 0.9
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
10.5 to 12.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.1 to 75.5
83.9 to 89.2
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.6 to 5.5
0
Nickel (Ni), % 0 to 0.3
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.5 to 6.5
0
Vanadium (V), % 1.8 to 2.3
0