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Permanent Steel Manufacturing Co.,Ltd has been committed to being a major supplier of quality kinds of stainless steel pipe and alloy steel pipe, numerous types of piping equipments including Bend, Cap, Coupling, Elbow, Reducer, Stub End, Tee, Olet, Joint, Gasket, etc.

Who We Are


Permanent Steel Manufacturing Co.,Ltd has been committed to being a major supplier of quality kinds of carbon steel pipe, stainless steel tube, hollow section, casing pipe, numerous types of piping equipments including Bend, Cap, Coupling, Elbow, Reducer, Stub End, Tee, Olet, Joint, Gasket, etc.As a factory,which specializing in the production, processing and sales of various steel pipes and pipe fittings size enterprises, headquartered in Hunan, the production base is located in Shandong and Tianjin. 



Customized service

The Products from Permanent Steel Manufacturing Co.,Ltd are supplied in accordance with appropriate International Standards as well as Customer Specifications in a large variety of steel grades and dimensions. Client specific requirements on execution, tolerances, lengths, mechanical and corrosion properties are offered on request. 



Technical support

Permanent Steel Manufacturing Co.,Ltd on a 250,000 m2 area and has three production units: Foundry, Rolling and Extrusion mills. Permanent Steel Manufacturing Co.,Ltd operates under strict quality, environmental, as well as health and safety management systems, in compliance with ISO 9001, ISO 14001 and OHSAS 18001 standards. The wide product range of Permanent Steel Manufacturing Co.,Ltd meets the requirements of the Unified European standards (EN) as well as BS, DIN, ASTM, JIS standards, or any other specific customer request.


Quality assurance

Our quality assurance system is certified in accordance with the ISO 9001 standards. An independent quality assurance department is responsible for all working procedures required to ensure that all manufacturing processes are carried out in accordance with international technical delivery conditions like ASTM/ASME, EN, API and with the customer specifications.


Furthermore Permanent steel has been certified in accordance with the OHSAS 18001 to secure the occupational health and safety of our employees and to eliminate and minimize the risks associated with their activities.

Permanent steel has several third party approvals for their manufacturing process as well as customer approvals.

Third party approvals
American Bureau of Shipping
Selection of customer approvals Saudi Aramco
Bureau Veritas
Shell International
Det Norske Veritas
Kuwait Oil Company
Germanischer Lloyd
Petroleum Development Oman
Lloyd"s Register
Sabic
PED
Gasco

Destructive & non-destructive testing (In assuring the quality of our products, our own in-house testing facilities play an important role. Our laboratory is well equipped to perform a wide variety of both destructive and non-destructive quality tests.)

Destructive testing includes
tensile tests
Non-destructive testing includes
eddy current testing
impact tests
x-ray testing
bend tests
hydro testing
hardness tests
ultrasonic testing
intercrystalline corrosion test
positive material indentification testing
pitting corrosion test

metallurgical tests




















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