B16.9 1/2 Inch Seamless Elbow Carbon Steel Butt Welded 90 Degree
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B16.9 Carbon Steel Butt Welded 90 Degree Elbow Seamless Pipe Fittings
Size 1/2"---24" Wall Thickness SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,
SCH140,SCH160,XXS, DIN, JIS standard thickness
Standard ASTMA234,ASTM A420,ANSI B16.9/B16.28/B16.25,ASME B16.9,
JIS B2311-1997/2312, JIS B2311/B2312, DIN 2605-1/2617/2615,
GB 12459—99,EN Standard etc.
Material Q235, 20#, 10#, Q345
A234 WPB, WP5, WP9, WP11,
SS304 ,SS306, SS306L
Application Low and middle pressure fluid pipeline,boiler, petroleum and natural gas industry,drilling,chemical industry, electric industry,shipbuilding,fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industry Surface Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE, etc. Package Plastic film,wooden cases ,wooden pallet,or on customers' request Certificate ISO 9001:2008, SGS, BV, etc Capacity 50,000 tons/year Advantages 1.Reasonable price with excellent quality
2.Abundant stock and prompt delivery
3.Rich supply and export experience, sincere service
4.Reliable forwarder, 2-hour away from port.
Seamless elbow forming method:
1. Forging and pressing method: stretch the end or part of the pipe with the forging machine, so as to reduce the outside diameter. Commonly used forging machines include rotary type, connecting rod type and roller type.
2. Rolling method: generally without mandrel, suitable for inner round edge of thick wall tube.The core is placed in the tube, and the roller is used for edge processing.
3. Stamping method: expand the tube end to the required size and shape with tapered core on the press.
4. Bending forming method: there are three methods commonly used, one method is called stretching method, another method is called stamping method, the third roller method, there are 3-4 rollers, two fixed rollers, an adjustment roller, adjust the fixed roller distance, the finished pipe is bent.
5. Bulking method: one is to place rubber inside the tube and compress it with punches to make the tube protruding and forming;Another method is hydraulic bulging, in which a liquid is filled in the middle of the tube, and the liquid pressure pushes the tube into the desired shape. This method is used in most of the production of bellows.
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Darcy Dong
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Guozhong International Limited
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