supply the Brazing welding rod
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China [CN] | 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 –which 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 |
| 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 |
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