Copper plating is widely used in industry, often as an undercoat. It is used as a final finish for masking before heat treatment. It can be used for decorative purposes, but it should be noted that copper readily tarnishes.
Metal Finishings Ltd can copper plate on top of steel and stainless steel. Other materials may be available on request.
Copper does not readily adhere to the passive surface layer which forms on the surface of stainless steel in normal conditions, therefore a 'nickel strike' is required as a base coat to allow the copper to adhere. This is something which we carry out as part of the same processing line.
- MIL-C-14550 (obsolete)
We can work to many other specifications, but the above are our most popular. Please contact us with your requirements.
Information for Designers
Thickness and Growth
Copper plating is deposited on the surface of the component. So the growth per surface will be equal to the thickness per surface.
Base Material Condition
The base material is very important to the quality of the plating. Best results will be obtained by using clean steel (as opposed to black steel). It is recommended that you ensure that material is not porous or pitted, because these will be corrosion sites despite the plating.
Tensile Strength of Base Metal
Components with a tensile strength of over 1000 MPa are liable to hydrogen embrittlement and require de-embrittlement and stress relief. We do not offer this service and accordingly do not treat parts with a tensile strength in excess of 1000 MPa. Please do not send us parts that require the above.