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Annealed SAE-AISI M2 vs. Annealed SAE-AISI M36

Both annealed SAE-AISI M2 and annealed SAE-AISI M36 are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is annealed SAE-AISI M2 and the bottom bar is annealed SAE-AISI M36.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 760
810

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1610
1600
Melting Onset (Solidus), °C 1570
1550
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 22
19
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
38
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 8.8
9.5
Embodied Energy, MJ/kg 130
140
Embodied Water, L/kg 98
140

Common Calculations

PREN (Pitting Resistance) 31
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 5.9
5.1
Thermal Shock Resistance, points 27
25

Alloy Composition

Carbon (C), % 0.78 to 1.1
0.8 to 0.9
Chromium (Cr), % 3.8 to 4.5
3.8 to 4.5
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 78.5 to 83.4
70.1 to 75.5
Manganese (Mn), % 0.15 to 0.4
0.15 to 0.4
Molybdenum (Mo), % 4.5 to 5.5
4.6 to 5.5
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
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
5.5 to 6.5
Vanadium (V), % 1.8 to 2.2
1.8 to 2.3