C&N China And HuiTong Ltd HIC Test For OQ ASTM A672 CC65 CL 22 Pipes

Port Construction Project

Product Name: BISAT SHUAIBA FIELD DEVELOPMENT
Standard And Material: ASTM A672 CC65 CL 22
Specification: PIPE, METALLIC; NOMINAL SIZE: DN600, WALL THICKNESS: 25.4 MM, MATERIAL: CS, MATERIAL GRADE: CC65 CL 22, MATERIAL SPECIFICATION: ASTM A672, SURFACE TREATMENT: FBE COATING, MANUFACTURING PROCESS: EFW, STANDARD: ASME B36., NACE; REFERENCE NO: K06H
Product Country: Oman
Product Time: Apr 2024

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Hydrogen Induced Cracking (HIC) is a form of wet H2S cracking that is usually generated by high hydrogen concentration in metals. The mechanism involves atomic hydrogen which diffuses into a metal structure. The cracking due to HIC is formed parallel to the surface in the hoop stress direction. Hydrogen-induced cracking is more prevalent in sour service environments due to the presence of wet H2S. There are some other elements that may contribute to hydrogen-induced cracking. Some of these elements are arsenic, antimony, selenium, and cyanides. However, H2S is considered the most contributing element to hydrogen-induced cracking damage in the oil and gas industry. HIC causes blistering damage to many metals and alloys.

ASTM A672 CC65 CL 22 Pipe

C&N China And HuiTong Ltd

When HIC testing is a requirement in the PO specifications, the vendor shall submit the details of Test laboratories (shall be ISO 17025 accredited) for Company approval.
Company shall have right to request for documentary evidence of the test laboratory accreditation details.
Corrosion tests like IGC test and Pitting corrosion test as per MR shall done in ISO 17025 certified Lab and shall be review point for OQ/TPI.
In case, Manufacturer Lab is not ISO 17025 certified Lab, the Lab shall be approved by Company and the Corrosion Tests shall be offered for witness by OQ/TPI.

HIC Testing Procedure Partial Pictures

HIC Testing Video