Grade
| China GB | H62 |
| American ASTM | C28000 |
| European EN | - |
| Japanese JIS | C2800 |
Chemical Composition
(Weight%)
| Copper Cu | 60.5-63.5 |
| Iron Fe | ≤0.15 |
| Lead Pb | ≤0.08 |
| Tin Sn | - |
| Oxygen O | - |
| Phosphorus P | - |
| Zinc Zn | Remains |
Product Properties
H62 has good ductility, deep drawing performance, weldability, platability and good corrosion resistance.
Application Fields
● Electronics and Electrical Appliances ● Home Decoration ● Heat Dissipation Components ● Daily Hardware
Fatigue Strength
Fatigue strength is the maximum stress value 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 | 8.5 | g/cm³ |
| Conductivity @20℃ | 27 | '%IACS' |
| Electrical Conductivity @20℃ | - | MS/m |
| Thermal Conductivity @20℃ | 116 | W/(m·K) |
| Specific Heat | 0.375 | J/(g.K) |
| Elastic Modulus | 105 | GPa |
| Poisson's Ratio | - | GPa |
| Coefficient of Thermal Expansion | 20.8 | 10 -6 /K |
Mechanical Properties
| State | Tensile Strength | Yield Strength | Hardness | Elongation | |
| MPa | ksi | MPa | HV | A 50% | |
| R300(O) | ≥290 | ≥42 | -- | ≤95 | ≥35 |
| R350(1/4H) | -- | -- | -- | -- | -- |
| R410(1/2H) | 350-470 | 51-68 | -- | 90-130 | ≥20 |
| R480(H) | 410-630 | 59-91 | -- | 125-165 | ≥10 |
| R550(EH) | ≥570 | ≥83 | -- | ≥155 | ≥2.5 |
| 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
H62 brass has good corrosion resistance in atmosphere, fresh water and non-oxidizing acids (such as dilute sulfuric acid and hydrochloric acid). In a dry atmospheric environment, a dense oxide film (mainly copper oxide) will form on the surface of H62 brass, which can prevent further corrosion.
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