1. Introduction
The microstructure of silver brazing is silver or silver-based solid solution alloy. It has perfect processing property, low melting point, good wettability and good ability to fill the gap, high joint strength, good plasticity, and good electrical conductivity and corrosion resistance. It can be used for brazing all ferrous and non-ferrous metals except aluminum, magnesium, and low melting point metal.
2. Technical Index:
Code | Related Standard | Chemical Composition | Melting Temperature | Typical Application | ||||
Ag% | Cu% | Zn% | Ni% | Solidus℃ | Liquidus℃ | |||
JAg-10 | 9-11 | 52-54 | 36-38 | / | 815 | 850 | Suitable for brazing copper with copper alloy,kinds of steel with stainless steels. Good spreading property and clearance filling ability | |
JAg-20 | CWA:BAg20CuZn | 19-21 | 40-42 | 38-40 | / | 690 | 810 | |
JAg-25 | CWA:BAg25CuZn | 24-26 | 40-42 | 33-35 | / | 680 | 795 | Suitable for brazing steel with non-ferrous metals (except Titanium and Magnesium). |
JAg-30 | CWA:BAg30CuZn | 29-31 | 37-39 | 30-34 | / | 677 | 766 | |
JAg-40 | CWA:BAg40CuZn | 39-41 | 29-31 | 29-31 | / | 621 | 732 | Suitable for brazing copper with copper alloy, kinds of steel with dissimilar metals. |
JAg-45 | CWA:BAg45CuZn | 44-46 | 29-31 | 24-26 | / | 677 | 743 | Suitable for brazing copper with copper alloy pipe fitting, tools, electrical motor, electrical appliance parts. |
JAg-50 | CWA:BAg50CuZn | 49-51 | 33-35 | 14-18 | / | 688 | 714 | Good spreading property and clearance filling ability. Suitable for brazing copper, copper alloy, kinds of steeling Steam turbine piece, tinning and zincing plated steel parts. |
JAg-50Ni | CWA:BAg50ZnCuNi | 49-51 | 19-21 | 26-30 | 1.5-2.5 | 660 | 707 | Suitable for brazing stainless steel, improve the crevice corrosion resistance. |
JAg-35 | CWA:BAg35ZnCu | 34-36 | 31-33 | 31-35 | / | 685 | 754 | Medium melting point, good toughness with joints. |
Note:1, AG: Silver; Cu: copper; Zn: Zinc; Ni: nickel;
2, CWA: China welding association; AWS: America welding Society; DVS: German Welding Society
