AWS E312 vs. C71520 Copper-nickel

AWS E312 belongs to the iron alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is C71520 copper-nickel.

AWS E312 (W31310) Weld Metal UNS C71520 (ERCuNi) Copper-Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		140

Elongation at Break, %		25
Elongation at Break, %		10 to 45

Poisson's Ratio		0.27
Poisson's Ratio		0.33

Shear Modulus, GPa		80
Shear Modulus, GPa		51

Tensile Strength: Ultimate (UTS), MPa		740
Tensile Strength: Ultimate (UTS), MPa		370 to 570

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		230

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		1170

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		1120

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		400

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		15

Otherwise Unclassified Properties

Base Metal Price, % relative		20
Base Metal Price, % relative		40

Density, g/cm³		7.7
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		3.6
Embodied Carbon, kg CO₂/kg material		5.0

Embodied Energy, MJ/kg		52
Embodied Energy, MJ/kg		73

Embodied Water, L/kg		200
Embodied Water, L/kg		280

Common Calculations

Stiffness to Weight: Axial, points		15
Stiffness to Weight: Axial, points		8.6

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		27
Strength to Weight: Axial, points		12 to 18

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		13 to 17

Thermal Shock Resistance, points		18
Thermal Shock Resistance, points		12 to 19

Alloy Composition

Carbon (C), %		0 to 0.15
Carbon (C), %		0 to 0.050

Chromium (Cr), %		28 to 32
Chromium (Cr), %		0

Copper (Cu), %		0 to 0.75
Copper (Cu), %		65 to 71.6

Iron (Fe), %		52.3 to 63.5
Iron (Fe), %		0.4 to 1.0

Lead (Pb), %		0
Lead (Pb), %		0 to 0.020

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		0 to 0.75
Molybdenum (Mo), %		0

Nickel (Ni), %		8.0 to 10.5
Nickel (Ni), %		28 to 33

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.2

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.020

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.5

Residuals, %		0
Residuals, %		0 to 0.5