Grade
| China GB | H62 |
| American ASTM | C28000 |
| European EN | CW509L |
| Japanese JIS | C2800 |
Chemical Composition
(Weight%)
| Copper Cu | 60.5-63.5 |
| Iron Fe | ≤0.05 |
| Lead Pb | ≤0.01 |
| Tin Sn | ≤0.03 |
| Oxygen O | ≤0.02 |
| Phosphorus P | ≤0.01 |
| Zinc Zn | Remains |
Product Properties
H62 has high strength, good hot workability, and moderate cold workability. It is machinable, easy to weld, and highly corrosion-resistant.
Application Fields
● Precision Machining ● Aerospace Applications ● Automotive Applications
Fatigue Strength
Fatigue strength is the maximum stress that can withstand a certain number of cycles without fracture. The standard fatigue strength of copper alloys is reported for 100,000,000 cycles.
Physical Properties
| Density | 8.44 | g/cm³ |
| Conductivity @20℃ | 23 | %IACS |
| Electrical Conductivity @20℃ | 14 | MS/m |
| Thermal Conductivity @20℃ | 120 | W/(m·K) |
| Specific Heat Capacity | 0.092 | /J.(kg.℃). t |
| Elastic Modulus | 105 | MPa |
| Poisson's Ratio | 0.34 | GPa |
| Coefficient of Thermal Expansion | 20.2 | 10 -6 /K |
Mechanical Properties
| Specifications | State | Tensile Strength | Yield Strength | Hardness | Elongation | |
| mm | MPa | ksi | MPa | HV | A% | |
| Φ0.1-0.25 | H02 | 430 | 62 | -- | 135 | -- |
| >Φ0.25-1.0 | H02 | 410 | 59 | -- | 127 | ≥4 |
| >Φ1.0-2.0 | H02 | 390 | 57 | -- | 123 | ≥7 |
| >Φ2.0-4.0 | H02 | 375 | 54 | -- | 117 | ≥10 |
| >Φ4.0-6.0 | H02 | 355 | 51 | -- | 112 | ≥12 |
| >Φ6.0-13.0 | H02 | 350 | 51 | -- | 110 | ≥14 |
| Φ0.1-0.25 | H04 | 785-980 | 114-142 | -- | 245-302 | -- |
| >Φ0.25-1.0 | H04 | 685-885 | 99-128 | -- | 213-277 | -- |
| >Φ1.0-2.0 | H04 | 635-835 | 92-121 | -- | 197-260 | -- |
| >Φ2.0-4.0 | H04 | 590-785 | 86-114 | -- | 183-245 | -- |
| >Φ4.0-6.0 | H04 | 540-735 | 78-107 | -- | 167-228 | -- |
| >Φ6.0-13.0 | H04 | 490-685 | 71-99 | -- | 155-213 | -- |
| Φ0.05-0.25 | H60 | 375 | 54 | -- | 117 | ≥18 |
| >Φ0.25-1.0 | H60 | 355 | 51 | -- | 112 | ≥22 |
| >Φ1.0-2.0 | H60 | 335 | 49 | -- | 105 | ≥26 |
| >Φ2.0-4.0 | H60 | 315 | 46 | -- | 98 | ≥30 |
| >Φ4.0-6.0 | H60 | 295 | 43 | -- | 92 | ≥34 |
| >Φ6.0-13.0 | H60 | 275 | 40 | -- | 87 | ≥36 |
| >Φ13.0-18.0 | H60 | 275 | 40 | -- | 87 | ≥36 |
*For reference only
Corrosion Resistance
Excellent: Aluminum hydroxide, lime, dry carbon dioxide, hydrogen, oxygen.
General: Fatty acids, potassium hydroxide, sodium bicarbonate, ethyl chloride, organic acids. "Dezincification" and "stress corrosion cracking" may occur.
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 | 0.03 | 0.03 | 1.8-2.5 | 0.5-2.0 | ±10mm |
| >4.0-6.0 | -- | 0.04 | -- | -- | -- |
| >Φ4.0-6.0 | 0.03 | 0.04 | >2.5-5.0 | 1.0-2.5 | ±10mm |
| >6.0-9.0 | 0.04 | 0.05 | >3.0 | 2.0-3.0 | ±10mm |
| >9.0-12.0 | 0.05 | 0.06 | -- | -- | -- |
Supply Method
| Specifications | Standard Roll Weight | Inner Diameter of Roll |
| mm | kg | mm |
| 0.1-0.3 | 1-5 | Shaft Loading |
| 0.5-0.8 | 5-12 | 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 | 45-60 | 370-400 |
| 8.0-12.0 | 200-400 | 1000-1200 |
| 200-400 | 1200-1400 |
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