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AWS ER70S-A1 vs. C70620 Copper-nickel

AWS ER70S-A1 belongs to the iron alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS ER70S-A1 and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
46
Tensile Strength: Ultimate (UTS), MPa 590
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 260
220
Melting Completion (Liquidus), °C 1460
1120
Melting Onset (Solidus), °C 1420
1060
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 50
49
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
33
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
51
Embodied Water, L/kg 48
300

Common Calculations

Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21
9.3 to 18
Strength to Weight: Bending, points 20
11 to 17
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 17
10 to 20

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.050
Copper (Cu), % 0 to 0.35
86.5 to 90
Iron (Fe), % 96.1 to 99.3
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.3
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
9.0 to 11
Phosphorus (P), % 0 to 0.025
0 to 0.2
Silicon (Si), % 0.3 to 0.7
0
Sulfur (S), % 0 to 0.025
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5