An obsolete term for Copper that has been cast with a deliberate Oxygen addition (typically 0.01 % - 0.05%) to improve electrical conductivity.
The metal may have first been either the electrolytically or fire refined.
Traffic Marks Fretting
Abrasions, usually dark in colour, resulting from relative movement, or rubbing, between contacting metal surfaces during transit.
Triplate Transition Joint
An explosively bonded bimetal flat bar that comprises a layer each of steel and marine-grade aluminium (alloy 5083) usually with an interlayer of pure aluminium.
It is used for the on site welding of aluminium to steel, especially in shipyards and for offshore structures.
Tube Hollow, Hollow
Interchangeable terms for a hot finished semi-finished product from either an extrusion or piercing process.
They are the feedstock for cold drawing or cold reduced tube production.