AWS A5.7:2007 RBCuZn-B
BS EN14640:2005 Cu6800
AWS RBCuZn-B is similar to RBCuZn-A rods but contain additions of iron and manganese which serve to increase the hardness and strength . In addition , a small amount of silicon serves to control the vaporization of the zinc, yielding the "low fuming" property.The nickel addition assures the uniform distribution of the iron in the deposit.
| Numerical symbol|
| chemical composition (%)|| |
| Cu|| Zn|| Sn||Mn||Fe||Si||Ni incl.Co||Al || Pb|| Total others|| Brazing temperature(ºC)|
| AWS A5.7:2007|| RBCuZn-B|| 56.00-60.00||blance||0.80-1.10||0.01-0.50||0.25-1.20|| 0.04-0.20|| 0.20-0.80||0.01 || 0.05|| max 0.05|| 882-982|