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 Pipe, Copper Nickel Alloy Tubes, Brass 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




Austenitic Austenite Stainless Steel
SUS 304 S30400 Stainless Steel Tubing Tubes Pipe
304L S30404 Stainless Steel Tubing Tubes Pipe
SUS 304H S30409 Stainless Steel Tubing Tubes Pipe
304NG Stainless Steel
S30432 Super 304H Stainless Steel Tubes
SUS 305 Stainless Steel Tubing Tubes Pipe Manufacturer
SUS 309S S30908 Stainless Steel Tubing Tubes Pipe
310S S31008 Stainless Steel Tubing Tubes Pipe
316 S31600 Stainless Steel Tubing Tubes Pipe
316L S31603 Stainless Steel Tubing Tubes Pipe
316Ti S31635 Stainless Steel Tubing Tubes Pipe
S31700 317LStainless Steel Pipe
SUS 321 S32100 Stainless Steel Tubing Tubes Pipe
SUS 321H S32109 Stainless Steel Tubing Tubes Pipe
347 S34700 Stainless Steel Tubing Tubes Pipe
347H S34705 Stainless Steel Tubing Tubes Pipe
253MA S30815 Stainless Steel Tubing Tubes Pipe
353MA S35315 Tubing Tubes Pipe
ASTM A564 A693 630 S17400 Stainless Steel Tubing Tubes Pipe
Super-Austenitic Stainless Steel
904L Pipe N8904 Stainless Steel Tubing Tubes Pipe
254 SMo S31254 Stainless Steel Tubing Tubes Pipe
Duplex Stainless Steel
S32101 Stainless Steel Tubing Tubes Pipe
2205 Duplex Pipe S32205
SA789 A789 S31803 Stainless Steel Tubing Tubes Pipe
S32304 Stainless Steel Tubing Tubes Pipe manufacturer





2507 Super Duplex Steel
S32750 Stainless Steel Tubing Tubes Pipe
S32760 Stainless Steel Tubing Tubes Pipe
Ferritic Ferrite Stainless Steel
ASTM A268 405 S40500 Stainless Steel Tubing Tubes Pipe
ASTM A268 409 S40900 Stainless Steel Tubing Tubes Pipe
ASTM A268 430 S43000 Stainless Steel Tubing Tubes Pipe Manufacturer
Martensitic Martensite Stainless Steel
ASTM A268 410 S41000 Stainless Steel Tubing Tubes Pipe
ASTM A268 410S S41008 Stainless Steel Tubing Tubes Pipe Manufacturer
AISI 416 Stainless Steel Tubing Tubes Pipe
AISI 420 S42000 Stainless Steel Tubing Tubes Pipe
EN 10269 EN10302 1.4913 X19CrMoNbVN11-1
EN 10269 EN10302 1.4938 X12CrNiMoV12-3
Incoloy Alloy Tubing
A286 Nickel Alloy Tubing
Nickel Alloy 20 N08020 Nickel Alloy Tubing Tubes Pipe
Incoloy 800 N08800 Nickel Alloy Tubing Tubes Pipe
Incoloy 800H N08810 Nickel Alloy Tubing Tubes Pipe
Incoloy 800HT N08811 Nickel Alloy Tubing Tubes Pipe
Incoloy 825 N08825 Nickel Alloy Tubing Tubes Pipe
Incoloy 901 N09901 Nickel Alloy Tubing Tubes Pipe
Incoloy 925 N09925 Nickel Alloy Tubing Tubes Pipe
Incoloy 926 N08926 Nickel Alloy Tubing Tubes Pipe Stockholder
Inconel Alloy Tubing
Inconel 600 N06600 Nickel Alloy Tubing Tubes Pipe
Inconel 601 N06601 Nickel Alloy Tubing Tubes Pipe
Inconel 625 N06625 Nickel Alloy Tubing Tubes Pipe
Inconel 706 N09706Nickel Alloy Tubing Tubes Pipe
Inconel 718 N07718 Nickel Alloy Tubing Tubes Pipe
Inconel X-750 N07750 Nickel Alloy Tubing Tubes Pipe




Hastelloy Alloy Tubing
Hastelloy B N10001 Nickel Alloy Tubing Tubes Pipe Manufacturer
Hastelloy B2 N10665 Nickel Alloy Tubing Tubes Pipe
Hastelloy B3 N10675 Nickel Alloy Tubing Tubes Pipe Supplier
Hastelloy C4 N06455 Nickel Alloy Tubing Tubes Pipe
Hastelloy C22 N06022 Nickel Alloy Tubing Tubes Pipe Supplier
Hastelloy C276 ASTM B622 N10276 Nickel Alloy Tubing Tubes Pipe
Hastelloy X N06002 Nickel Alloy Tubing Tubes Pipe Factory
Hastelloy G Nickel Alloy Tubing Tubes Pipe
Hastelloy G3 N06985 Nickel Alloy Tubing Tubes Pipe
Nimonic Alloy Tubing
Nimonic 75 N06075 Alloy Tubing Tubes Pipe
Nimonic 80A N07080 Alloy Tubing Tubes Pipe
Nimonic 90 N07090 Alloy Tubing Tubes Pipe Suppliers
Monel Nickel Alloy Tubing
Alloy 200 N02200 Nickel Alloy Tubing Tubes Pipe
Alloy 201 N02201 Nickel Alloy Tubing Tubes Pipe
Monel 400 N04400 Nickel Alloy Tubing Tubes Pipe
Monel 401 N04401 Nickel Alloy Tubing Tubes Pipe Manufacturer
Monel R 405 N04405 Nickel Alloy Tubing Tubes Pipe
Monel K 500 N05500 Nickel Alloy Tubing Tubes Pipe Exporter
Brass Alloy Seamless Tubing Tube Pipes
C28000 Brass Alloy Seamless Tubing Tube
C44300 Brass Alloy Seamless Tubing Tube
C68700 Brass Alloy Seamless Tube Tubing
Copper Nickel Alloy Pipe
C70600 Copper Nickel Pipe
C71500 Copper Nickel Pipe