Grade
| China GB | H65 |
| American ASTM | C27000 |
| European EN | CW507L |
| Japanese JIS | C2700 |
Chemical Composition
(Weight%)
| Copper Cu | 63.5-68.0 |
| Iron Fe | ≤0.05 |
| Lead Pb | ≤0.01 |
| Tin Sn | ≤0.03 |
| Oxygen O | ≤0.02 |
| Phosphorus P | ≤0.01 |
| Zinc Zn | Remains |
Product Characteristics
H65 has good formability, high strength, is easy to weld, and has strong corrosion resistance.
Application Fields
● Precision Machining ● Electronic Components ● Clothing Applications ● Screw Mesh
Fatigue Strength
The maximum stress that can withstand a certain number of cycles without fracture is fatigue strength. The standard fatigue strength of copper alloy is reported for 100,000,000 cycles. It is approximately 1/3 of the tensile strength.
Physical Properties
| Density | 8.47 | g/cm³ |
| Conductivity @20℃ | 27 | %IACS |
| Electrical Conductivity @20℃ | 14 | MS/m |
| Thermal Conductivity @20℃ | 123 | W/(m·K) |
| Specific Heat Capacity | 0.09 | /J.(kg.℃). t |
| Elastic Modulus | 105 | MPa |
| Poisson's Ratio | 0.34 | GPa |
| Coefficient of Thermal Expansion | 20.4 | 10 -6 /K |
Mechanical Properties
| Specifications | State | Tensile Strength | Yield Strength | Hardness | Elongation | |
| mm | MPa | ksi | MPa | HV | A% | |
| Φ0.1-0.25 | H02 | 410 | 59 | -- | 127 | -- |
| >Φ0.25-1.0 | H02 | 400 | 58 | -- | 125 | ≥4 |
| >Φ1.0-2.0 | H02 | 390 | 57 | -- | 123 | ≥7 |
| >Φ2.0-4.0 | H02 | 380 | 55 | -- | 120 | ≥10 |
| >Φ4.0-6.0 | H02 | 375 | 54 | -- | 117 | ≥13 |
| >Φ6.0-13.0 | H02 | 360 | 52 | -- | 113 | ≥15 |
| Φ0.1-0.25 | H04 | 685-885 | 99-128 | -- | 212-271 | -- |
| >Φ0.25-1.0 | H04 | 635-835 | 92-121 | -- | 197-260 | -- |
| >Φ1.0-2.0 | H04 | 590-785 | 86-113 | -- | 182-245 | -- |
| >Φ2.0-4.0 | H04 | 540-735 | 78-107 | -- | 167-227 | -- |
| >Φ4.0-6.0 | H04 | 490-685 | 71-99 | -- | 155-212 | -- |
| >Φ6.0-13.0 | H04 | 440-635 | 64-92 | -- | 137-197 | -- |
| Φ0.05-0.25 | H60 | 380 | 55 | -- | 120 | ≥18 |
| >Φ0.25-1.0 | H60 | 390 | 57 | -- | 123 | ≥24 |
| >Φ1.0-2.0 | H60 | 350 | 51 | -- | 110 | ≥28 |
| >Φ2.0-4.0 | H60 | 360 | 52 | -- | 113 | ≥32 |
| >Φ4.0-6.0 | H60 | 360 | 52 | -- | 113 | ≥35 |
| >Φ6.0-13.0 | H60 | 370 | 54 | -- | 115 | ≥40 |
*For reference only
Corrosion Resistance
In air or high-temperature caustic soda solution, CaCl2 solution, the corrosion rate is slight, 3% NaCl aqueous solution, dezincification penetration, artificial seawater, local surface pitting corrosion.
Tolerance Accuracy
| Specifications | Tolerance | Straight Bar Length | |||
| mm | Coil mm |
Straight Bar mm |
Specifications | Length m |
Length Tolerance mm |
| 0.3-1.0 | 0.01 | -- | -- | -- | -- |
| >1.0-2.0 | 0.02 | 0.02 | 1.5-<1.8 | 0.5-1.0 | ±10mm |
| >2.0-4.0 | 0.02 | 0.03 | 1.8-2.5 | 0.5-2.0 | ±10mm |
| >Φ4.0-6.0 | 0.03 | 0.04 | >2.5-5.0 | 1.0-2.5 | ±10mm |
| >6.0-9.0 | 0.03 | 0.04 | >5.0-9.0 | 1.0-2.5 | ±10mm |
| >9.0-12.0 | 0.03 | 0.04 | >9.0 | 2.0-3.0 | ±10mm |
Supply Method
| Specifications | Standard Roll Weight | Roll Inner Diameter |
| mm | kg | mm |
| 0.1-0.3 | 1-5 | Shaft Loading |
| 0.5-0.8 | 5-12 | Shaft Loading, 160-200 |
| 0.8-1.1 | 15-25 | 270-300 |
| 0.8-1.6 | 200-500 | Shaft Loading |
| 0.8-1.6 | 100-250 | Paper Tube Packaging |
| 0.8-1.7 | 10-15 | Layer Wound Shaft Loading |
| 0.7-2.0 | 300-500 | Iron Frame Packaging |
| 1.1-1.6 | 18-30 | 260-300 |
| 1.6-2.5 | 25-40 | 320-350 |
| 2.8-6.5 | 30-45 | 370-400 |
| 4.0-6.5 | 100-250 | 400-650 |
| 6.5-10.0 | 50-100 | 400-650 |
| 8.0-12.0 | 200-1000 | 650-750 |
| 200-400 | 1200-1400 |
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