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AWS E310Nb vs. AWS E33-31

Both AWS E310Nb and AWS E33-31 are iron alloys. Both are furnished in the as-welded condition. They have 80% 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 E310Nb and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 29
29
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 620
810

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1410
1380
Melting Onset (Solidus), °C 1370
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 31
36
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.3
6.0
Embodied Energy, MJ/kg 76
86
Embodied Water, L/kg 200
260

Common Calculations

PREN (Pitting Resistance) 28
44
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 20
24
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.030
Chromium (Cr), % 25 to 28
31 to 35
Copper (Cu), % 0 to 0.75
0.4 to 0.8
Iron (Fe), % 44.1 to 53.3
24.7 to 34.8
Manganese (Mn), % 1.0 to 2.5
2.5 to 4.0
Molybdenum (Mo), % 0 to 0.75
1.0 to 2.0
Nickel (Ni), % 20 to 22
30 to 32
Niobium (Nb), % 0.7 to 1.0
0
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.010