Donghao Stainless Steel



Branch Company Changzhou Henghao Special Alloy are specialized manufacturers for Oil & Petroleum industries and Heat Exchanger industries and Machining Industries, Stainless Steel Tubing Nickel Alloy Tubes and pipes in China.

We are ISO 9001:2015, PED 2014/68/EU and ASME Boiler and Pressure Vessel Code Certification certified. Built in 2006, Cover area over 35,000m², more than 200 employees, annual production capacity of Stainless Steel Tubing & Pipes, Nickel Alloy Tubes more than 8,000 Metric Tons, annual 30000 tons production capacity of Copper Nickel Alloy Tubes and Brass Alloy Tubes and Pipes.

We have built a complete quality management system and organization according to ISO 9001:2015 and PED 2014/68/EU. Qualitu control begin with an audit trail and continues from the point of steel melting. for the raw materials, we select the best quality raw material for our customers. right through to the finished product. This level of attention to detail extends throughout the design and manufacturing chain, all kinds inspection will be all though the producing process ensure the Stainless Steel Pipe Tubing and Nickel Alloy Seamless PipeCopper Nickel Alloy TubesBrass Seamless Tubes finished in qualified. With destructive and non-destructive tests according to standard specification and customer's special requirement, and including verification of performance by independent third-party test houses.

   Stainless Steel Tubing, Nickel Alloy Tubing, Brass Alloy Tubing, Copper Nickel Pipe Material Grades



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