Copper.
BRAZIERY COPPER
This grade contains most of things the other grades can’t, tinned, soldered, brazed or painted, no problems even up to 5% brass (not the 25% that some of our favourite customers try and sell us occasionally). This grade should be free of other iron or contaminants and strictly speaking 95% copper scrap.
BRIGHT TINNED COPPER WIRE
Another grade that is found in electric cable, clean copper but with a tinned coating, this makes it silver grey in colour rather than copper or green with oxidisation, must be free of any other contaminant.
CLEAN FLAT COPPER BUS BAR
Flat copper bar used for conducting electricity in locations where wire is not suitable, must be free of all contamination and not burnt.
COPPER BACK BOILERS
Copper fireback boilers, usually oxidised green not to be confused with the stainless steel variety.
COPPER CYLINDERS
Copper heating cylinders, usually found in airing cupboards, bathrooms, etc., may have the odd brass fitting on. The heating element should be removed or there will be a 1 kilo deduction, foam insulated cylinders are acceptable but again there will be a small weight deduction, should also be empty of water, it is amazing how many customers try to sell us good old Yorkshire water.
COPPER ELEMENTS
The heating elements removed from hot water cylinders, those will usually contain the brass end with electrical contacts and may be a plastic cover and a short length of flex.
COPPER PYRO TENAX CABLE
Used for conducting electricity, looks like a copper tube but has several strands of copper inside the tube which are insulated from each other and outside by a white chalk like material, not to be mistaken for the pvc coated pyro.
COPPER TRANSFORMER TAPE
Usually sourced from the coil forming part of a transform, the copper being in flat tape or bar form rather than wire, usually has to be burnt to remove contamination, solderise or brazed joints must be removed.
DRY BRIGHT COPPER WIRE
Usually sourced from electricity cable of varying diameter, Must be free of any other metal or contamination. Minimum thickness 22 gauge.
GREASY BRIGHT COPPER WIRE
Usually sourced from older lead armoured electric cable, can contain a layer of grease but must be free of other metals or contamination. Minimum thickness 22 gauge.
HARD DRAWN COPPER WIRE
Usually in the form of overhead cable, inflexible when compared with underground or armoured copper wire, will normally be oxidised green, must be free of all other contaminants.
HEAVY COPPER
Should consist of crucible 18″x18″x18″ size clean untinned copper not less than 1/16″ thick, must be free of plating, solder and any other metal or contaminant.
NEW COPPER CUTTINGS
Must consist of new copper sheet cuttings untinned and free of any other contaminant including paint, polyback, etc.
NEW COPPER TUBE
Usually sourced from the burning of electric cable or electric motors, must be no thinner than 22 gauge and relatively free of oxidisation and ash, it must be free of any other contaminant or metal.
NO1 BURNT COPPER WIRE
Usually sourced from the burning of electric cable or electric motors, must be no thinner than 22 gauge and relatively free of oxidisation and ash, it must be free of any other contaminant or metal.
NO2 COPPER WIRE
Should mainly consist of burnt, tinned and soldered wire but can contain a percentage of unburnt wire, must be free of any other metals and contaminants.
PLASTIC COATED PYRO TENAX CABLE
Clean flat copper bus bar free of paint and other contaminents.
ROUND COPPER BUS BAR
Should mainly consist of burnt, tinned and soldered wire but can contain a percentage of unburnt wire, must be free of any other metals and contaminants.
TINNED FLAT COPPER BUS BAR
Copper bar in circular section used for conducting electricity instead of cable must be free of all contamination including grease or paint and must not be burnt.
J.B. Schofield & Sons Ltd
Greenhead, Linthwaite, Huddersfield, West Yorkshire HD7 5TST: 01484 842766
E: accounts@jbschofieldandsons.co.uk