Thermal conductivity and temperature hardness, the beryllium-copper alloy the following features as casting mold material used for plastic forming
Beryllium Copper
The NGK Ultra Supra II Plus enable high-cycle plastic forming, improves quality, and ensure a long life for casting mols.
NGK Ultra Supra II Plus Features
Machinability
While this material offers cutting performance similar to steel of equivalent hardness, even better performance can be achieved by slightly changing the machining conditions.
Weldability
Because this copper alloy has excellent thermal conductivity, use a TIG welder in the following manner:
- Use high welding amperage, approximately 3 times that for steel
- Use a welding rod made of a compatible material
Standard Plates in Stock
Plates with various sizes are available.
| Thickness (mm) | Tolerance | Length |
|---|---|---|
| T12 ~ 350 | +1 - 0 | 1000 ~ 2000 |
Standard Round Bars in Stock
Round bars with various sizes are available.
| Diameter (mm) | Tolerance | Length |
|---|---|---|
| Ø 20 ~ 55 | ±0.25 | 1000 ~ 2000 |
| Ø 55 ~ 120 | +1 - 0 | — |
Physical and Mechanical Features
| Material | Thermal Conductivity | Thermal Expansion | Elasticity Coefficient | Hardness |
|---|---|---|---|---|
| NGK PLUS | 245 | 132 | 132 | B92–105 |
| NGK SUPRA II | 145 | 127 | 127 | C30–34 |
| NGK ULTRA | 130 | 127 | 127 | C36–42 |
Other than hardness, values shown are representative figures.
Rods
SPECIFICATIONS
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AMS 4533 (AT)
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AMS 4534 (HT)
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AMS 4650 (A)
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AMS 4651 (H)
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ASTM B196
Plate
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C17200/17510
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0.75o - 8o THICK
Size Ranges
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0.062o - 8o