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AWS E70C-B2L vs. AWS ER80S-Ni2

Both AWS E70C-B2L and AWS ER80S-Ni2 are iron alloys. Both are furnished in the post-weld heat treated (PWHT) condition. They have a very high 98% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AWS E70C-B2L and the bottom bar is AWS ER80S-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 580
620
Tensile Strength: Yield (Proof), MPa 460
540

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 22
22
Embodied Water, L/kg 54
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 550
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 17
18

Alloy Composition


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Carbon (C), % 0 to 0.050
0 to 0.12
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0 to 0.35
0 to 0.35
Iron (Fe), % 95.1 to 98
94.2 to 97.6
Manganese (Mn), % 0.4 to 1.0
0 to 1.3
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
2.0 to 2.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.25 to 0.6
0.4 to 0.8
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