SSTS are professional in supply the Brazing welding rod, such as: low silver brazing rod Bcup-2 ( Harris 0), and high silver content brazing welding rod Bag-20 etc, Factory is load in Ningbo of China who have over 10 years produce experience, round rod, flat rod ,also welding ring is ok for us never mind what size . A, Detailed product Description: A-1 Low silver content braizing welding metal: Standard Chemical composition(%) AWS (JIS) P Ag Cu Sn Sb Sodify Lipuefy Use temp Bcup-1 4.8-5.3 / Rem / / 705 925 710-930 Bcup-2 6.8-7.5 / Rem / / 710 795 735-845 BCup-3 5.8-6.7 4.7-6.3 Rem / / 645 815 720-815 Bcup-4 6.8-7.7 5.8-6.2 Rem / / 645 720 690-790 Bcup-5 4.8-5.3 14.5-15.5 Rem / / 645 800 705-815 Bcup-6 6.5-7.2 1.8-2.2 Rem / / 645 790 730-815. Technology Bcup-1 It is the highest temperature of the P Cu solder widely used in Gas appliances Bcup-2 Good flow property economical widely used in the brazing of presenting in air-conditioners and the no-verbatim load areas Bcup-3 Have certain plasticity suitable for brazing copper alloy and some copper ¨Cwhich can¡¯t conjugate tightly BCup-4 It is of low melting point It is especially fit for the automatic braze welding it has been largely applied in the soldering with four way valve and cut-off valve Bcup-5 Bettered plasticity and conductivity of joint suitable especially for brazing copper and copper alloy with vibration load Bcup-6 Widely used in brazing copper and copper alloy in the fields of air-conditioning and mechanical-electrical good flow property and filling capability. A-2 High silver content brazing rod The silver borer material is a kind of borer material with silver base or the silver base, have fine craft,performance, low dissolves temperature ,good moisture and the ability to fiil-up interval ,and the high intensity ,good plasticity ,good electric aluminums ,magnesium and other low melting lamp manufacture ,ironware & electric apparatus ,instrument & apparatus ,chemical industry ,Aero-Space ,etc AWS Chemical ingredient (%) Temperature Principal areas of application 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 is 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 economical and 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-electrical and 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 B-Package detail : A1, A2 Size (mm) Rod style Package style 0.5mm~1.0mm wire 15kgs/spool; 10kgs/coil 1.2mm~5mm*500mm Round rod 1 lb/tube; 0.5 or 1 or 2 or 5kgs/ pp bag, then 10 kgs or 20kgs/ctn; 500kgs/wooden box. 1.3mm*3.2mm*500mm Flat rod 1 lb/tube; 0.5 or 1 or 2 or 5kgs/ pp bag, then 10 kgs or 20kgs/ctn; 500kgs/wooden box. 3.2mm*3.2mm*498mm.