METALS · COPPER
Copper stock here is mostly electrical and heat-exchange surplus: Cu-ETP (C11000) busbar and sheet from switchgear and substation projects, and Cu-DHP where tube and brazed work is involved. Off-cut pieces suit panel builders and workshops that need a bar, not a bundle.
Stock turns over piece by piece — what's listed is what exists. Post the spec you need and we match it against incoming material; you're alerted the moment something lands.
Cu-ETP — electrolytic tough pitch copper — is the electrical workhorse, with conductivity second only to silver among practical metals. Substation and switchgear projects order busbar by the tonne; the drops and unused bars from that work are exactly what a panel shop needs for links, earthing bars and small runs.
Cu-DHP, the phosphorus-deoxidised grade, is the one to reach for when brazing or welding: the deoxidation prevents hydrogen embrittlement that can crack ETP in a torch flame. Surface oxidation on stored copper is normal and cosmetic — the metal underneath is unaffected.
Common grades in this family: Cu-ETP · C11000 · Cu-DHP
Earthing bars, panel links, short distribution runs, repairs — anywhere a panel builder needs electrical-grade copper in workshop quantities instead of a full mill bundle.
ETP for anything electrical: highest conductivity, the standard busbar grade. DHP when the job involves brazing or welding — its deoxidation prevents the hydrogen cracking ETP can suffer under a flame.
No. Copper oxidises on the surface in storage; the patina is microns deep and cosmetic. For electrical joints, contact faces are cleaned or tinned at installation anyway.