Lost-wax casting · Precious metals · Precious / casting metal
Copper
A warm reddish metal that develops a patina over time; jewelry, accessories and decorative objects.
What is Copper?
Copper is loved in jewelry and decorative objects for its reddish-orange color and the natural patina it develops over time. It is cast with the lost-wax method from a castable model printed with SLA; it can be polished, antiqued or varnished to keep its color. Its electrical and thermal conductivity is very high.
- Metal
Technical data
Typical values compiled from common manufacturer datasheets; they vary by brand and grade.
| Density | ≈ 8.9 g/cm³ |
|---|---|
| Melting point | ≈ 1085 °C |
| Minimum wall thickness | ≈ 0.8 mm |
Design guidelines for Copper
General guidelines for Lost-Wax Casting technology. All design guidelines
- Minimum wall thickness0.6 – 1 mm
- Smallest detail0.3 mm
- Clearance for moving parts0.3 mm
- Text and logosEmbossed ≥ 0.35 mm
- Minimum hole diameterØ 0.8 mm
- Unsupported overhang angleFor the pattern, ≥ 30° from horizontal; flatter surfaces need support
Applications
- Rings, bracelets and pendants
- Decorative objects
- Key rings and accessories
Advantages
- A distinctive warm color
- Natural patina
- Economical
Limitations
- Tarnishes and can turn green over time
- Can leave marks on skin
Comparison
Copper and alternatives
| Property | Copper | Brass | Bronze | Sterling silver 925 |
|---|---|---|---|---|
| Density | 8.9 g/cm³ | 8.5 g/cm³ | 8.8 g/cm³ | 10.4 g/cm³ |
| Tensile strength | — | — | — | — |
| Elongation at break | — | — | — | — |
| Modulus (stiffness) | — | — | — | — |
| Heat deflection (0.45 MPa) | — | — | — | — |
Values are averages of typical ranges; see each material page for details.
Good to know
Frequently asked questions about Copper
What is Copper?
Copper is loved in jewelry and decorative objects for its reddish-orange color and the natural patina it develops over time. It is cast with the lost-wax method from a castable model printed with SLA; it can be polished, antiqued or varnished to keep its color. Its electrical and thermal conductivity is very high.
Is Copper heat resistant?
Copper is a metal; it keeps its strength at much higher temperatures than polymers.
Can Copper be used outdoors?
Yes. Copper has good resistance to UV light and weather; it is suitable for outdoor parts.
Which parts are made with Copper?
Copper is typically used in applications such as rings, bracelets and pendants, decorative objects, key rings and accessories.
Which material can be used instead of Copper?
Depending on the application, Brass, Bronze, Sterling silver 925 can be alternatives. You can see the differences in the comparison tables on the material pages.
Does TAİ Robotik produce with Copper?
For Copper, send us your part's dimensions, quantity and operating conditions; we will determine the best production route and, if needed, an equivalent alternative together.
Lost-wax casting · Precious metals
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