C69430 Brass vs. AWS E312

C69430 brass belongs to the copper alloys classification, while AWS E312 belongs to the iron 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 C69430 brass and the bottom bar is AWS E312.

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

Metric UnitsUS Customary Units

Mechanical Properties

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

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

Poisson's Ratio		0.33
Poisson's Ratio		0.27

Shear Modulus, GPa		42
Shear Modulus, GPa		80

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

Thermal Properties

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

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

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

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

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

Otherwise Unclassified Properties

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

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

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

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

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

Common Calculations

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

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

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

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

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

Alloy Composition

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

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

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

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

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

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

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

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

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

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

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

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

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

Residuals, %		0 to 0.5
Residuals, %		0