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Help CenterANSI B16.5 Stainless Steel WN Flanges
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Procurement of raw materials and re-inspection 3.1, all for the manufacture of forging flange raw materials procurement pipeline must be identified to the supplier. 3.2, after the purchase of raw materials must be re-inspection, qualified before put into production. Check the project is not less than the following: 3.2.1 Raw materials must have a quality certificate, the quality of the certificate must be completed according to the corresponding manufacturing standards complete, not missing items. 3.2.2, the quality of the certificate must be a one-to-one correspondence with the raw materials. 3.2.3, each batch of raw materials (with the specifications, with the material, with the furnace number, at the same time arrival) should be pumping not less than 1 chemical composition analysis and mechanical properties test. Material for the alloy steel or low temperature steel, in addition to pumping no less than one chemical composition analysis and mechanical properties of the test, the remaining part of the root by line for spectral analysis. The test results meet the corresponding standard requirements
High-quality products
Welded neck flange not easy to distortion, good sealing, widely used, butt thinning transition weld joints ,horn shape, avoid shape change when welding in high temperature. applicable to high temperature pipeline, high pressure and low temperature pipeline, normally used to connect pipes and valves which PN is greater than 2.5MPa; also used to transport expensive, flammable, explosive media pipeline.
Our packaging
Steel Flange Production Process
Steel Flange workshop
Production Process
Cangzhou Haoyuan Pipe Fitting Mfg Co.,Ltd. Is a professional manufacturer which can produce all kinds of carbon steel ,alloy steel and stainless steel high and low pressure flange, elbow, tee, cross, reducer, bend, pipe cap, seamless steel pipe and ERW pipes in accordance with the production standard ASME, DIN, JIS, EN, BS, GB, GOST, etc .
Products are sold at home and abroad. Enterprise has the first-class production equipment of cold forming, hot push-pull, forging and testing equipment of physical and chemical, metallurgical, detection, spectrum and so on,having complete mechanical testing system.Over the years, the company provide good quality pipe and pipe fitting products for domestic thermal power, chemical, shipbuilding, metallurgy, pressure machine, oil and petrochemical, and other key projects. At the same time, the products are also exported to Europe, America, Middle East, Africa and Southeast Asia and other countries and regions.
The company has a number of professional staff. Passed the ISO9000 international quality system certification, and achieved a pressure vessel certificate, plays an important role in this production field. We adopt scientific production process, strict quality management, advanced service concept, and reasonable prices to win a good reputation, established a close and pleasant cooperation with domestic and foreign customers.
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