Used for steel, copper nickel alloy, granted carbide brass brazing copper zinc alloy
Used for steel, copper nickel alloy, granted carbide brass brazing copper zinc alloy
HZ-S221 is a kind of copper and zinc brazing alloy, and available for gaseous flame brazing, high frequency brazing, furnace brazing, resistance welding etc. HZ-S221 has good welding performance, and it is widely used for brazing of copper and copper alloy, steel, copper nickel alloy, gray cast iron, cemented carbide etc. It could replace H62 filler metal and be used as wire of brazing brass. HZ-S221 is a special brass brazing filler metal that contains tin and silicon. While tin improves fluidity, silicon controls evaporation of zinc, and eliminates gas hole to get an excellent welding process. Because of good corrosive and toughness, HZ-S221 is often used by surface welding worn parts of metal, such as bearing valve sealing surface, propeller. HZ-S221 brass wire should work together with copper gas welding flux when oxyacetylene gas brazing.
Item Number:HZ-S221
Chemical Composition (%):Cu 59-61, Sn 0.8-1.2, Si 0.15-0.35, Zn Remain,
Melting Point:890-905°C
Recommended Temp.:910-945°C
Advantages and Usage:For brazing copper and copper alloy, steel and cast iron in the method of flame brazing, furnace brazing and induction welding
Caution:1.The surface of oil and oxide on the work pieces should be cleansed carefully before brazing .
2. Preheat the work piece to 400 to 500°Cbefore brazing.
3. Matching flux should be used together when brazing.
4.Neutral flame or slight oxidizing flame could be used when flame welding. Appropriate decrease welding temperature, increase welding speed, reduce residence time of molten pool in high temperature to lessen the evaporation and oxidation of zinc.
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Anhui Huazhong Welding Material Manufacturing Co., Ltd is established in 2004, and located in Hefei——the central City of Anhui Province. We are specialized in manufacturing and producing brazing materials. Our main products include silver-based brazing filler metal, copper-based brazing filler metal, aluminum-based brazing filler metal and associated brazing flux, flux-cored welding wire etc. Our brazing flux products include: silver welding paste, silver welding powder, copper welding paste, copper welding powder, aluminum welding paste, aluminum welding powder, spot welding paste (water), etc. The available shape of brazing alloys are rod, ring, sheet, strip, wire etc.
Q: How to get a formal effective quotation?
A: According to your required specification, such as material(Article) ,main dimension, and the quantity you need, we will provide a formal effective quotation within a working days.
Q:How to deal with the parts received when they are found to be in poor quality?
A: Please rest assured that all our products are QC inspected completely and accepted with inspection report before delivery. Generally there will no non-conformance. In case of non- conformance, and the errors identified was caused by us, we will arrange to repair or make right parts for you. We are Trade Assurance supplier of Alibaba, it will provide you max protection.
Q: What is the MOQ?
A: Usually we don’t set MOQ, but the more, the cheaper. Besides, we are happy to make prototype or sample for clients to ensure quality standard.
Q: Whether some samples can be provided ?
A: Yes, just need some sample cost, we will return it back when proceed into mass production.
Q: If we can not find what we want on your website, what should we do?A: You can email us the descriptions and pictures of the products you need, we will check whether we have them. We develop new items every month, and some of them have not been uploaded to website in time. Or you can send us sample by express, we will develop this item for bulk purchasing.
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