Copper, brass and gunmetal milling and turning
Most copper alloys have very good machining properties and are suitable for turning and milling. In application, these materials offer very good sliding properties, good electrical conductivity, good thermal conductivity and high corrosion resistance.
At Spanflug Buy, you can choose from five different copper alloys for CNC machining (milling and turning). The typical applications of the different copper alloys (copper, brass, bronze and gunmetal) are very different. Our overview will help you select the ideal material for your turning and milling parts.
Surface treatments for turning and milling copper parts
In addition, a wide variety of surface treatments such as vibratory grinding are available.
This is how easy it is to order copper parts from Spanflug:
Upload CAD model, select suitable material and post-treatment, call up instant quote and order online.
Our copper alloys
Please choose the alloy with the optimum fit to your requirements.
Cu-ETP
CW004A (E-copper)
Material costs: €€€€€
Manufacturing costs: €€€€€
Tensile strength: 240 - 300 N/mm²
Hardness: 75 - 100 HB
CW004A has a copper content of 99.9%. The material is characterized in particular by its high electrical conductivity and relatively high corrosion resistance. Areas of application include electrodes for spark erosion and connecting elements in battery systems.
✔ High electrical conductivity
✔ very corrosion resistant
✔ very good thermal conductivity
CuSn12
CC483K (Bronze)
Material costs: €€€€€
Manufacturing costs: €€€€€
Tensile strength: 260 N/mm²
Hardness: 80 HB
CuSn12 (bronze) is a copper-tin alloy characterized by good spring properties as well as very good sliding properties. This alloy is therefore particularly well suited for applications with high sliding speeds.
✔ very good gliding properties
✔ very corrosion resistant
✔ good spring properties
✔ wear-resistant
CuSn7Zn4Pb7
Rg7 (gunmetal)
Material costs: €€€€€
Manufacturing costs: €€€€€
Tensile strength: 260 N/mm²
Hardness: 70 HB
Rg7(gunmetal) is a copper alloy with excellent sliding and emergency running properties. The main applications for this material are plain bearings and bearing bushes for mechanical engineering. Rg7 is not RoHS compliant.
✔ very good gliding properties
✔ very corrosion resistant
✔ Very good emergency running properties
✔ very good machinability
CuSn8
CW453K (Bronze)
Material costs: €€€€€
Manufacturing costs: €€€€€
Tensile strength: 390 - 550 N/mm²
Hardness: 90 - 185HB
CuSn8 (bronze) is a copper-tin alloy characterized by very good spring properties as well as good sliding properties.
✔ good gliding properties
✔ very corrosion resistant
✔ very good spring properties
✔ wear-resistant
CuZn39Pb3
Ms58 (brass)
Material costs: €€€€€
Manufacturing costs: €€€€€
Tensile strength: 360 - 550 N/mm²
Hardness: 90 - 150 HB
CuZn39Pb3 (brass) is the most widely used copper zinc alloy for machining. It is characterized by very good sliding properties as well as good thermal conductivity.
✔ very good gliding properties
✔ very corrosion resistant
✔ very good machinability
Note: The data given are guide values and may vary depending on the machining process and part. The data cannot be transferred to finished parts without further ado. The suitability of the materials for a specific part must be checked by the customer.
