C87610 Bronze vs. AWS E33-31

C87610 bronze belongs to the copper alloys classification, while AWS E33-31 belongs to the iron 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 C87610 bronze and the bottom bar is AWS E33-31.

UNS C87610 (Alloy 12A) Silicon Bronze AWS E33-31 (W33310) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		210

Elongation at Break, %		22
Elongation at Break, %		29

Poisson's Ratio		0.34
Poisson's Ratio		0.27

Shear Modulus, GPa		43
Shear Modulus, GPa		81

Tensile Strength: Ultimate (UTS), MPa		350
Tensile Strength: Ultimate (UTS), MPa		810

Thermal Properties

Latent Heat of Fusion, J/g		270
Latent Heat of Fusion, J/g		320

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		1380

Melting Onset (Solidus), °C		820
Melting Onset (Solidus), °C		1330

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		480

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

Otherwise Unclassified Properties

Base Metal Price, % relative		29
Base Metal Price, % relative		36

Density, g/cm³		8.5
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		6.0

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		86

Embodied Water, L/kg		300
Embodied Water, L/kg		260

Common Calculations

Stiffness to Weight: Axial, points		7.4
Stiffness to Weight: Axial, points		14

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

Strength to Weight: Axial, points		11
Strength to Weight: Axial, points		28

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

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		19

Alloy Composition

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

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

Copper (Cu), %		90 to 94
Copper (Cu), %		0.4 to 0.8

Iron (Fe), %		0 to 0.2
Iron (Fe), %		24.7 to 34.8

Lead (Pb), %		0 to 0.2
Lead (Pb), %		0

Manganese (Mn), %		0 to 0.25
Manganese (Mn), %		2.5 to 4.0

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

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

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

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

Silicon (Si), %		3.0 to 5.0
Silicon (Si), %		0 to 0.9

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

Zinc (Zn), %		3.0 to 5.0
Zinc (Zn), %		0

Residuals, %		0 to 0.5
Residuals, %		0