Ronggang pipe is offering and supplying high- grade ERW PIPES in different types, wall consistence, confines, and specifications. Using high- quality raw material supplied by our most trusted merchandisers in the request and advanced ministry, we manufacture these pipes &tubes.High- frequence straight confluence electric- resistance ERW Pipes is hot- rolled coil after forming machine, the use of high- frequence current skin effect and propinquity goods, the tube edge heating and melting, squeeze comber under pressure welding to achieve product.
ASTM A213 covers flawless ferritic and austenitic sword boiler, Boiler Tube, and heat- exchanger tubes for high temperature services, We also keep stock of ASTM A213 flawless tubes of Alloy SteelT2, T11, T12, T22, T91, T92in annealed and pickled, bright annealed, shop finish and polished conditions according to client conditions.
The ASTM A335 is a specification for flawless ferritic amalgamation sword pipe. These Alloy sword flawless pipes are intended for high temperature services. There are also the High Alloy Steel accoutrements . There are different grades in this material specification. There are P1, P2 through P91 and P92 grades. The most generally used are the p5, p9, p11, p22, p91 and the p92 grades.
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