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SAE-AISI M6 Steel vs. AWS E308LMo

Both SAE-AISI M6 steel and AWS E308LMo are iron alloys. They have 72% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M6 steel and the bottom bar is AWS E308LMo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
580

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1560
1440
Melting Onset (Solidus), °C 1510
1400
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 39
19
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.0
3.8
Embodied Energy, MJ/kg 120
53
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 28
28
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 73
21
Strength to Weight: Bending, points 24 to 45
20
Thermal Diffusivity, mm2/s 4.7
4.2
Thermal Shock Resistance, points 26 to 68
15

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.040
Chromium (Cr), % 3.8 to 4.5
18 to 21
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 68.8 to 74.6
59.6 to 70.5
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.5
Molybdenum (Mo), % 4.5 to 5.5
2.0 to 3.0
Nickel (Ni), % 0
9.0 to 12
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 0.030
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0