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AWS E240 vs. AWS E310Nb

Both AWS E240 and AWS E310Nb are iron alloys. Both are furnished in the as-welded condition. They have 75% 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 E240 and the bottom bar is AWS E310Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
29
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 770
620

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1390
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 15
14

Otherwise Unclassified Properties

Base Metal Price, % relative 14
31
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
5.3
Embodied Energy, MJ/kg 42
76
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 22
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
22
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 3.9
3.8
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 17 to 19
25 to 28
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 58.6 to 68.4
44.1 to 53.3
Manganese (Mn), % 10.5 to 13.5
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.75
0 to 0.75
Nickel (Ni), % 4.0 to 6.0
20 to 22
Niobium (Nb), % 0
0.7 to 1.0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030