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SAE-AISI M36 Steel vs. SAE-AISI O7 Steel

Both SAE-AISI M36 steel and SAE-AISI O7 steel are iron alloys. They have 77% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M36 steel and the bottom bar is SAE-AISI O7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 810 to 2190
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1600
1480
Melting Onset (Solidus), °C 1550
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 19
41
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 38
6.0
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 9.5
2.3
Embodied Energy, MJ/kg 140
33
Embodied Water, L/kg 140
52

Common Calculations

PREN (Pitting Resistance) 31
3.6
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 27 to 72
24 to 74
Strength to Weight: Bending, points 23 to 44
22 to 46
Thermal Diffusivity, mm2/s 5.1
11
Thermal Shock Resistance, points 25 to 68
23 to 70

Alloy Composition

Carbon (C), % 0.8 to 0.9
1.1 to 1.3
Chromium (Cr), % 3.8 to 4.5
0.35 to 0.85
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 70.1 to 75.5
92.9 to 97.6
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.5
0 to 0.3
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.5
1.0 to 2.0
Vanadium (V), % 1.8 to 2.3
0 to 0.4

Comparable Variants