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AWS E630 vs. AWS E80C-B6

Both AWS E630 and AWS E80C-B6 are iron alloys. Both are furnished in the post-weld heat treated (PWHT) condition. They have 81% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS E630 and the bottom bar is AWS E80C-B6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 1040
630

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
39
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
4.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 40
25
Embodied Water, L/kg 140
71

Common Calculations

PREN (Pitting Resistance) 18
7.1
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
22
Strength to Weight: Bending, points 29
21
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 28
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.1
Chromium (Cr), % 16 to 16.8
4.5 to 6.0
Copper (Cu), % 3.3 to 4.0
0 to 0.35
Iron (Fe), % 71.6 to 75.9
90.1 to 94.4
Manganese (Mn), % 0.25 to 0.75
0.4 to 1.0
Molybdenum (Mo), % 0 to 0.75
0.45 to 0.65
Nickel (Ni), % 4.5 to 5.0
0 to 0.6
Niobium (Nb), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.75
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5