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H04 C27200 Brass vs. H04 C61000 Bronze

Both H04 C27200 brass and H04 C61000 bronze are copper alloys. Both are furnished in the H04 (full hard) temper. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is H04 C27200 brass and the bottom bar is H04 C61000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 15
29
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 80
85
Shear Modulus, GPa 40
42
Shear Strength, MPa 320
300
Tensile Strength: Ultimate (UTS), MPa 520
460
Tensile Strength: Yield (Proof), MPa 340
190

Thermal Properties

Latent Heat of Fusion, J/g 170
220
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 920
1040
Melting Onset (Solidus), °C 870
990
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 120
69
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
15
Electrical Conductivity: Equal Weight (Specific), % IACS 31
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
29
Density, g/cm3 8.1
8.5
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 45
49
Embodied Water, L/kg 320
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68
110
Resilience: Unit (Modulus of Resilience), kJ/m3 530
160
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 37
19
Thermal Shock Resistance, points 17
16

Alloy Composition

Aluminum (Al), % 0
6.0 to 8.5
Copper (Cu), % 62 to 65
90.2 to 94
Iron (Fe), % 0 to 0.070
0 to 0.5
Lead (Pb), % 0 to 0.070
0 to 0.020
Silicon (Si), % 0
0 to 0.1
Zinc (Zn), % 34.6 to 38
0 to 0.2
Residuals, % 0
0 to 0.5