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AWS E308LMo vs. SAE-AISI M2 Steel

Both AWS E308LMo and SAE-AISI M2 steel are iron alloys. They have 73% 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 AWS E308LMo and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 580
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1400
1570
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 16
22
Thermal Expansion, µm/m-K 14
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
24
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 3.8
8.8
Embodied Energy, MJ/kg 53
130
Embodied Water, L/kg 160
98

Common Calculations

PREN (Pitting Resistance) 28
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
25 to 71
Strength to Weight: Bending, points 20
22 to 44
Thermal Diffusivity, mm2/s 4.2
5.9
Thermal Shock Resistance, points 15
27 to 76

Alloy Composition

Carbon (C), % 0 to 0.040
0.78 to 1.1
Chromium (Cr), % 18 to 21
3.8 to 4.5
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 59.6 to 70.5
78.5 to 83.4
Manganese (Mn), % 0.5 to 2.5
0.15 to 0.4
Molybdenum (Mo), % 2.0 to 3.0
4.5 to 5.5
Nickel (Ni), % 9.0 to 12
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2