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AWS E310Mo vs. AWS E320

Both AWS E310Mo and AWS E320 are iron alloys. Both are furnished in the as-welded condition. They have 83% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS E310Mo and the bottom bar is AWS E320.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 620
620

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 28
38
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 5.1
6.5
Embodied Energy, MJ/kg 71
91
Embodied Water, L/kg 210
220

Common Calculations

PREN (Pitting Resistance) 35
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 20
20
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.070
Chromium (Cr), % 25 to 28
19 to 21
Copper (Cu), % 0 to 0.75
3.0 to 4.0
Iron (Fe), % 42.8 to 52
31.8 to 43.5
Manganese (Mn), % 1.0 to 2.5
0.5 to 2.5
Molybdenum (Mo), % 2.0 to 3.0
2.0 to 3.0
Nickel (Ni), % 20 to 22
32 to 36
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030