BRASS ROD SWARF
Swarf from the machining of brass rod, quite yellow in colour must be free of other grades ie; phosphor bronze and gu metal etc. must not contain more than 5% moisture and iron combined.
COLLECTED BRASS ROD
New extruded brass rod ends free of aluminium and aluminium mixtures, must be free of iron and other deletrious material, usually only supplied by engineers.
Otherwise known as yellow brass. Valves, taps and numerous other everyday products are made from brass quite often chromed for domestic use ie; taps, should be free of manganese or ali bronze grades and obviously iron.
MIXED BRASS BORINGS
May contain any sort of brass boring with up to 10% manganese or ali bronze borings, slight contamination with aluminium or gun metal is accepted, iron and moisture should not exceed 5%.
NEW BRASS CUTTINGS
Cuttings and stampings from soft brass sheet, not less than 61.5% copper, must be free of tinned, plated, poly, painted material and iron free.