
Characteristics:
It is a high-performance alloy with low nickel and silicon content. It is precipitation hardened, offering high strength, hardness, good electrical conductivity, excellent wear resistance, and superior formability. It is an ideal substitute for beryllium copper alloys.
Typical applications:
It is mainly used for cores and inserts in blow molding and injection molding molds, as well as die parts in die casting.
| UNS | / |
|---|---|
| EN | / |
| JIS | / |
| GB | / |
| Cu | 90.0-98.5% |
| Si | 0.4-2.0% |
| Ni | 1.0-5.0% |
| Other | 0.01-3.0% |
| Density (g/cm³) | 8.8 |
|---|---|
| Electrical conductivity (%IACS) | 40 |
| Thermal conductivity (W / m x K) | 180 |
| Coefficient of thermal expansion② (10-6/K) | 18 |
| Modulus of elasticity (GPa) | 130 |
| Capacity for being cold worked | Good |
| Capacity for being hot formed | Good |
| Resistance welding | Fair |
| Machinability rating③ | 30% |
| Temper | Diameter (mm) | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HV5 min.) |
|---|---|---|---|---|---|
| TH04 | 10 < Ф ≤ 30 | 800 | 700 | 10 | 250 |
| TD04 | 10 < Ф ≤ 30 | 600 | 500 | 10 | 170 |
| Straight bar | ||||
| Diameter (mm) | Tolerance⑤ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 3.0 ≤ Φ < 10 | 0.04 | 0.020 | 2500 | 0.5 |
| 10 ≤ Φ < 16 | 0.05 | 0.025 | 3600 | 0.5 |
| 16 ≤ Φ < 25 | 0.10 | 0.040 | 3600 | 0.8 |
| 25 ≤ Φ < 35 | 0.15 | 0.050 | 3600 | 0.8 |
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH