Grade
| China GB | H80 |
| American ASTM | C24000 |
| European EN | - |
| Japanese JIS | C2400 |
Chemical Composition
(Weight%)
| Copper Cu | 78.5-81.5 |
| Iron Fe | ≤0.05 |
| Lead Pb | ≤0.05 |
| Tin Sn | - |
| Oxygen O | - |
| Phosphorus P | - |
| Zinc Zn | Remains |
Product Properties
H80 has good ductility, deep drawing performance, weldability, platability and good corrosion resistance.
Application Fields
● Electronics and Electrical Appliances ● LED ● Heat Dissipation Components ● Home Decoration
Fatigue Strength
Fatigue strength is the maximum stress that a material can withstand without fracture under 10^7 cycles of load, and it is related to the state of the selected material. Usually, the fatigue strength is about 1/3 of the tensile strength. For fine-grained solid solution alloys, the fatigue strength can be increased to 1/2 of the tensile strength.
Physical Properties
| Density | 8.7 | g/cm³ |
| Conductivity @20℃ | 32 | %IACS |
| Electrical Conductivity @20℃ | - | MS/m |
| Thermal Conductivity @20℃ | 134 | W/(m·K) |
| Specific Heat | 0.38 | J/(g.K) |
| Elastic Modulus | 105 | GPa |
| Poisson's Ratio | - | GPa |
| Coefficient of Thermal Expansion | 19.1 | 10 -6 /K |
Mechanical Properties
| State | Tensile Strength | Yield Strength | Hardness | Elongation | |
| MPa | ksi | MPa | HV | A 50% | |
| R300(O) | ≥290 | ≥42 | -- | 75-95 | ≥40 |
| R350(1/4H) | 300-360 | 42-51 | -- | 80-110 | ≥35 |
| R410(1/2H) | 340-420 | 49-61 | -- | 100-130 | ≥20 |
| R480(H) | 390-480 | 57-70 | -- | 120-150 | ≥4 |
| R550(EH) | ≥480 | ≥70 | -- | 150-180 | -- |
| R630(SH) | -- | -- | -- | -- | -- |
*For reference only
Bending Performance
| State | 90°R/T | 180°R/T | ||
| Good Way | Bad Way | Good Way | Bad Way | |
| R350(1/4H) | -- | -- | -- | -- |
| R410(1/2H) | Good | Good | Good | Good |
| R480 | -- | -- | -- | -- |
*Test sample width 10mm thickness ≤0.5mm
Corrosion Resistance
H80 brass strip exhibits excellent corrosion resistance in atmosphere, water and some non-acidic environments, suitable for use in humid or weakly corrosive environments.
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