AWS E307 vs. CR006A Copper

AWS E307 belongs to the iron alloys classification, while CR006A copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E307 and the bottom bar is CR006A copper.

AWS E307 (W30710) Weld Metal EN CR006A (Cu-FRTP) Fire-Refined Tough Pitch Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		34
Elongation at Break, %		15

Poisson's Ratio		0.28
Poisson's Ratio		0.34

Shear Modulus, GPa		78
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		660
Tensile Strength: Ultimate (UTS), MPa		230

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		1420
Melting Completion (Liquidus), °C		1090

Melting Onset (Solidus), °C		1370
Melting Onset (Solidus), °C		1040

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		15
Thermal Conductivity, W/m-K		380

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Base Metal Price, % relative		17
Base Metal Price, % relative		31

Density, g/cm³		7.8
Density, g/cm³		9.0

Embodied Carbon, kg CO₂/kg material		3.5
Embodied Carbon, kg CO₂/kg material		2.6

Embodied Energy, MJ/kg		49
Embodied Energy, MJ/kg		41

Embodied Water, L/kg		160
Embodied Water, L/kg		320

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		24
Strength to Weight: Axial, points		7.1

Strength to Weight: Bending, points		22
Strength to Weight: Bending, points		9.3

Thermal Diffusivity, mm²/s		4.1
Thermal Diffusivity, mm²/s		110

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		8.1

Alloy Composition

Carbon (C), %		0.040 to 0.14
Carbon (C), %		0

Chromium (Cr), %		18 to 21.5
Chromium (Cr), %		0

Copper (Cu), %		0 to 0.75
Copper (Cu), %		99.9 to 100

Iron (Fe), %		59.6 to 69.2
Iron (Fe), %		0

Manganese (Mn), %		3.3 to 4.8
Manganese (Mn), %		0

Molybdenum (Mo), %		0.5 to 1.5
Molybdenum (Mo), %		0

Nickel (Ni), %		9.0 to 10.7
Nickel (Ni), %		0

Oxygen (O), %		0
Oxygen (O), %		0 to 0.1

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

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

Silver (Ag), %		0
Silver (Ag), %		0 to 0.015

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