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H04 C21000 Brass vs. H04 C23000 Brass

Both H04 C21000 brass and H04 C23000 brass are copper alloys. Both are furnished in the H04 (full hard) temper. They have 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is H04 C21000 brass and the bottom bar is H04 C23000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.0
5.0
Poisson's Ratio 0.34
0.33
Rockwell B Hardness 63
76
Rockwell Superficial 30T Hardness 61
70
Shear Modulus, GPa 43
42
Shear Strength, MPa 260
290
Tensile Strength: Ultimate (UTS), MPa 380
470
Tensile Strength: Yield (Proof), MPa 350
400

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 1070
1030
Melting Onset (Solidus), °C 1050
990
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 230
160
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
37
Electrical Conductivity: Equal Weight (Specific), % IACS 57
39

Otherwise Unclassified Properties

Base Metal Price, % relative 30
28
Density, g/cm3 8.8
8.6
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 42
43
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
22
Resilience: Unit (Modulus of Resilience), kJ/m3 520
700
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 12
15
Strength to Weight: Bending, points 13
16
Thermal Diffusivity, mm2/s 69
48
Thermal Shock Resistance, points 13
16

Alloy Composition

Copper (Cu), % 94 to 96
84 to 86
Iron (Fe), % 0 to 0.050
0 to 0.050
Lead (Pb), % 0 to 0.030
0 to 0.050
Zinc (Zn), % 3.7 to 6.0
13.7 to 16
Residuals, % 0
0 to 0.2