AWS E312 vs. C69430 Brass

AWS E312 belongs to the iron alloys classification, while C69430 brass belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is C69430 brass.

AWS E312 (W31310) Weld Metal UNS C69430 Silicon Red Brass

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		110

Elongation at Break, %		25
Elongation at Break, %		17

Poisson's Ratio		0.27
Poisson's Ratio		0.33

Shear Modulus, GPa		80
Shear Modulus, GPa		42

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

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		920

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		820

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

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		18

Otherwise Unclassified Properties

Base Metal Price, % relative		20
Base Metal Price, % relative		27

Density, g/cm³		7.7
Density, g/cm³		8.3

Embodied Carbon, kg CO₂/kg material		3.6
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		52
Embodied Energy, MJ/kg		44

Embodied Water, L/kg		200
Embodied Water, L/kg		300

Common Calculations

Stiffness to Weight: Axial, points		15
Stiffness to Weight: Axial, points		7.4

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

Strength to Weight: Axial, points		27
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		18

Thermal Shock Resistance, points		18
Thermal Shock Resistance, points		20

Alloy Composition

Arsenic (As), %		0
Arsenic (As), %		0.030 to 0.060

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

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

Copper (Cu), %		0 to 0.75
Copper (Cu), %		80 to 83

Iron (Fe), %		52.3 to 63.5
Iron (Fe), %		0 to 0.2

Lead (Pb), %		0
Lead (Pb), %		0 to 0.3

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

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

Nickel (Ni), %		8.0 to 10.5
Nickel (Ni), %		0

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

Silicon (Si), %		0 to 1.0
Silicon (Si), %		3.5 to 4.5

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

Zinc (Zn), %		0
Zinc (Zn), %		11.4 to 16.5

Residuals, %		0
Residuals, %		0 to 0.5