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AWS E80C-B2 vs. AWS ER80S-B6

Both AWS E80C-B2 and AWS ER80S-B6 are iron alloys. Both are furnished in the post-weld heat treated (PWHT) condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is AWS E80C-B2 and the bottom bar is AWS ER80S-B6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
19
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 630
620
Tensile Strength: Yield (Proof), MPa 530
540

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
4.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 22
24
Embodied Water, L/kg 53
71

Common Calculations

PREN (Pitting Resistance) 3.0
7.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 740
750
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 18
18

Alloy Composition


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Carbon (C), % 0.050 to 0.12
0 to 0.1
Chromium (Cr), % 1.0 to 1.5
4.5 to 6.0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 95.3 to 97.9
90.6 to 94.7
Manganese (Mn), % 0.4 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0.4 to 0.65
0.45 to 0.65
Nickel (Ni), % 0 to 0.2
0 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.25 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0 to 0.5