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AWS E383 vs. AWS E33-31

Both AWS E383 and AWS E33-31 are iron alloys. Both are furnished in the as-welded condition. They have a moderately high 93% of their average alloy composition in common. There are 21 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 E383 and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 34
29
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 580
810

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1370
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 37
36
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.4
6.0
Embodied Energy, MJ/kg 89
86
Embodied Water, L/kg 240
260

Common Calculations

PREN (Pitting Resistance) 40
44
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
28
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 26.5 to 29
31 to 35
Copper (Cu), % 0.6 to 1.5
0.4 to 0.8
Iron (Fe), % 28.8 to 39.2
24.7 to 34.8
Manganese (Mn), % 0.5 to 2.5
2.5 to 4.0
Molybdenum (Mo), % 3.2 to 4.2
1.0 to 2.0
Nickel (Ni), % 30 to 33
30 to 32
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.9
0 to 0.9
Sulfur (S), % 0 to 0.020
0 to 0.010