- 168#,Yuelu Avenue Steel Industrial Zone, Changsha, China
- 0086-731-88787784
- sales@permanentsteelpipe.com
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 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 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 |
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Det Norske Veritas |
Kuwait Oil Company |
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Germanischer Lloyd |
Petroleum Development Oman |
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Lloyd"s Register |
Sabic |
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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 |
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bend tests |
hydro testing |
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hardness tests |
ultrasonic testing |
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intercrystalline corrosion test |
positive material indentification testing |
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pitting corrosion test |
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metallurgical tests |
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