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AWS ER70S-B2L vs. C71580 Copper-nickel

AWS ER70S-B2L belongs to the iron alloys classification, while C71580 copper-nickel belongs to the copper alloys. There are 27 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 ER70S-B2L and the bottom bar is C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 22
40
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
51
Tensile Strength: Ultimate (UTS), MPa 590
330
Tensile Strength: Yield (Proof), MPa 450
110

Thermal Properties

Latent Heat of Fusion, J/g 260
230
Melting Completion (Liquidus), °C 1460
1180
Melting Onset (Solidus), °C 1420
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
41
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.6
5.1
Embodied Energy, MJ/kg 21
74
Embodied Water, L/kg 54
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 530
47
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21
10
Strength to Weight: Bending, points 20
12
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 17
11

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 1.2 to 1.5
0
Copper (Cu), % 0 to 0.35
65.5 to 71
Iron (Fe), % 95.3 to 97.6
0 to 0.5
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.4 to 0.7
0 to 0.3
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
29 to 33
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.4 to 0.7
0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.5