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SAE-AISI T8 Steel vs. AWS E308LMo

Both SAE-AISI T8 steel and AWS E308LMo are iron alloys. They have 71% 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 T8 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 78
78
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
580

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1730
1440
Melting Onset (Solidus), °C 1670
1400
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 18
16
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 45
19
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 10
3.8
Embodied Energy, MJ/kg 160
53
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 30
28
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 66
21
Strength to Weight: Bending, points 21 to 41
20
Thermal Diffusivity, mm2/s 4.8
4.2
Thermal Shock Resistance, points 24 to 66
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), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 69.3 to 75.4
59.6 to 70.5
Manganese (Mn), % 0.2 to 0.4
0.5 to 2.5
Molybdenum (Mo), % 0.4 to 1.0
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
9.0 to 12
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0