AWS E33-31 vs. CR012A Copper

AWS E33-31 belongs to the iron alloys classification, while CR012A copper belongs to the copper alloys. There are 20 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 E33-31 and the bottom bar is CR012A copper.

AWS E33-31 (W33310) Weld Metal EN CR012A (CuAg0.07) Silver-Bearing Tough Pitch Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		210
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		29
Elongation at Break, %		15

Poisson's Ratio		0.27
Poisson's Ratio		0.34

Shear Modulus, GPa		81
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		810
Tensile Strength: Ultimate (UTS), MPa		220

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		1380
Melting Completion (Liquidus), °C		1090

Melting Onset (Solidus), °C		1330
Melting Onset (Solidus), °C		1040

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

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

Otherwise Unclassified Properties

Base Metal Price, % relative		36
Base Metal Price, % relative		33

Density, g/cm³		7.9
Density, g/cm³		9.0

Embodied Carbon, kg CO₂/kg material		6.0
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		86
Embodied Energy, MJ/kg		42

Embodied Water, L/kg		260
Embodied Water, L/kg		360

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		28
Strength to Weight: Axial, points		6.8

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		9.0

Thermal Shock Resistance, points		19
Thermal Shock Resistance, points		7.8

Alloy Composition

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.00050

Carbon (C), %		0 to 0.030
Carbon (C), %		0

Chromium (Cr), %		31 to 35
Chromium (Cr), %		0

Copper (Cu), %		0.4 to 0.8
Copper (Cu), %		99.85 to 99.94

Iron (Fe), %		24.7 to 34.8
Iron (Fe), %		0

Manganese (Mn), %		2.5 to 4.0
Manganese (Mn), %		0

Molybdenum (Mo), %		1.0 to 2.0
Molybdenum (Mo), %		0

Nickel (Ni), %		30 to 32
Nickel (Ni), %		0

Nitrogen (N), %		0.3 to 0.5
Nitrogen (N), %		0

Oxygen (O), %		0
Oxygen (O), %		0 to 0.040

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0

Silicon (Si), %		0 to 0.9
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		0.060 to 0.080

Sulfur (S), %		0 to 0.010
Sulfur (S), %		0