Category 类 别 Trade-mark 牌号 Specification 规 格 Melting Point 熔点(℃) Chemical composition 主要成份(%) Application 用 途 Equivalent to AWS 相当AWS Copper zinc 铜锌 L103 Wire & rod 丝 885-888 Cu54 Zn Rem. Brazing of copper, bronze and steel, subjected to low load. 钎焊铜、青铜和钢等受力不大工件 　 L104 Foil 箔 890-930 Cu57 Mn2 Co2 Zn Rem. Brazing of carbide cutting tool. 钎焊硬质合金刀具 　 Copper phosphorus 　 铜磷 L201 Cast rod, wire & rod, powder 铸条、丝、粉 710-800 P7 Cu Rem. Brazing of copper and copper alloys. 钎焊铜及铜合金 BCuP-2 L204 Cast rod, wire 铸条、丝 640-815 P5 Ag15 Cu Rem. Brazing of copper, copper alloys, silver and molybdenum etc. 钎焊铜及铜合金、银、钼等金属。 BCuP-5 L205 Cast rod, wire & rod, powder 铸条、丝、箔 640-800 P6 Ag5 Cu Rem. Brazing of copper and copper alloys. 钎焊铜及铜合金 BCuP-3 L207 Cast rod, wire & rod 铸条、丝 640-770 P7 Ag5 Cu Rem. Brazing of copper and copper alloys. 钎焊铜及铜合金 BCuP-7 L209 Cast rod, wire 铸条、丝 684-710 P7 Ag2 Cu Rem. Brazing of copper and copper alloys. 钎焊铜及铜合金。 BCuP-6 　Silver base 银基 L302 Wire & rod 丝 745-775 Ag25 Cu40 Zn Rem. Brazing of copper, copper alloys, steel and stainless steel etc. 钎焊铜及铜合金、钢及不锈钢等 　 L303 Wire & rod 丝 660-725 Ag45 Cu30 Zn余 Brazing of copper, copper alloys, steel and stainless steel etc. 钎焊铜及铜合金、钢及不锈钢等 BAg-5 L303F Flux coated rod 涂药丝 660-725 Ag45 Cu30 Zn Rem. L303 coated with flux, the same application as L303. 外涂钎剂的L303，用途与L303相同 BAg-5 L304 Foil 箔 690-775 Ag50 Cu34 Zn Rem. Brazing of copper, copper alloys and steel etc. 钎焊铜及铜合金、钢等 BAg-6 L308 Wire & rod 丝 779-780 Ag72 Cu Rem. Brazing of copper and nickel under vacuum or reducing protective atmosphere. 铜和镍的真空或还原保护气氛钎焊 BAg-8 L312 Wire & rod 丝 595-605 Ag40.Cu.Zn.Cd Brazing of copper, copper alloys, steel