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AWS E308Mo vs. AWS E2593

Both AWS E308Mo and AWS E2593 are iron alloys. Both are furnished in the as-welded condition. They have a moderately high 91% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS E308Mo and the bottom bar is AWS E2593.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 620
850

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 19
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
4.2
Embodied Energy, MJ/kg 53
59
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 28
39
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
30
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.2
4.3
Thermal Shock Resistance, points 16
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.040
Chromium (Cr), % 18 to 21
24 to 27
Copper (Cu), % 0 to 0.75
1.5 to 3.0
Iron (Fe), % 59.6 to 70.5
52.7 to 62.5
Manganese (Mn), % 0.5 to 2.5
0.5 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
2.9 to 3.9
Nickel (Ni), % 9.0 to 12
8.5 to 10.5
Nitrogen (N), % 0
0.080 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030