Standard	Chemical compositon(%)					Temperature			Principal areas of application
AWS	Ag	Cu	Zn	Sn	Ni	Solidus	Liquidus	Use temp
Bag-18BSn	17-19	44-46	31-35	1.5-2.5	/	770	810	810-880	High melting point ,and braze copper and steel without cadmium
										Bag-25B	24-26	40-42	32-36	/	/	700	800	800-890	Good wetness and filling property ,suited for brazing copper,copper alloy and steel with higher melting point
Bag-20	29-31	37-39	30-34	/	/	677	766	760-840	Suited for brazing copper,copper alloy and steel with low melting point and good techniac
										Bag-35B	34-36	31-33	31-35	/	/	621	732	730-810	Suited for brazing copper ,copper alloy and steel with low melting point and good technics, the melting point lower than 30silver
Bag-28	39-41	29-31	31-35	1.5-2.5	/	650	710	710-790	It is the fine flow-ability. It ie applicable for ferrite steel and none ferrite steel welding
										Bag-4	39-41	31-33	26-30	/	/	677	732	730-810	Mid-level melding range ,good ductility and penetrability economicaland penetrability economical
Bag-36	44-46	26-28	23-27	2.5-3.5	/	645	680	680-760	Used generally for brazing the part required cleanliness face in mechanical-electricaland food industries due to its perfect general features,good ductility and penetrability
										Bag-6	49-51	33-35	14-18	/	/	690	775	770-850	Used for brazing these materials under vibration load in electrical and food industries
Bag-24	49-51	19-21	26-30	/	1.5-	660	707	710-790	Suited for brazing stainless steel with improved capability of resistance of crevice corrosion
					2.5
Bag-7	55-57	21-23	15-19	4.5-5.5	/	618	652	650-720	Suited for brazing stainless steel in food and other industries with low melting point,high penetrability good ductility and corrosion resistance property