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C34500 Brass vs. ASTM A356 Grade 2

C34500 brass belongs to the copper alloys classification, while ASTM A356 grade 2 belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C34500 brass and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 12 to 28
25
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 340 to 430
510
Tensile Strength: Yield (Proof), MPa 120 to 180
270

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
410
Melting Completion (Liquidus), °C 910
1470
Melting Onset (Solidus), °C 890
1430
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
51
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 29
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.4
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 45
20
Embodied Water, L/kg 320
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
110
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
190
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 15
18
Strength to Weight: Bending, points 13 to 16
18
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 11 to 14
15

Alloy Composition

Carbon (C), % 0
0 to 0.25
Copper (Cu), % 62 to 65
0
Iron (Fe), % 0 to 0.15
97.7 to 99.55
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 32 to 36.5
0
Residuals, % 0 to 0.4
0