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SAE-AISI M2 Steel vs. ASTM A266 Carbon Steel

Both SAE-AISI M2 steel and ASTM A266 carbon steel are iron alloys. There are 21 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 M2 steel and the bottom bar is ASTM A266 carbon 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 77
73
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
500 to 600

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1570
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
51 to 52
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
1.8
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
1.4
Embodied Energy, MJ/kg 130
18 to 19
Embodied Water, L/kg 98
46 to 47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25 to 71
18 to 21
Strength to Weight: Bending, points 22 to 44
18 to 20
Thermal Diffusivity, mm2/s 5.9
14
Thermal Shock Resistance, points 27 to 76
16 to 19