Line Pipe
7 product categories (source: API Composite List)
API 5L line pipe manufacturers
Steel line pipe for oil and gas transport, including CRA line pipe, coiled line pipe and clad or lined steel pipe.
- API standards
- API-5L, API-5LC, API-5LCP, API-5LD
- Product categories
- 14
Standards and suppliers
CRA Line Pipe
2 product categories (source: API Composite List)
Coiled Line Pipe
1 product category (source: API Composite List)
Clad or Lined Steel Pipe
4 product categories (source: API Composite List)
Product categories
Line Pipe Plain End at PSL 1
Line Pipe Plain End at PSL 2
Line Pipe Plain End at PSL 2 - Service Annex H
Line Pipe Plain End at PSL 2 - Service Annex J
Line Pipe Plain End at PSL 2 - Service Annex N
Line Pipe Couplings
Processed Line Pipe Plain End PSL1, PSL2, Annex H, Annex J, and/or Annex N
Manufacturer of CRA Line Pipe
Processor of CRA Line Pipe
Coiled Line Pipe
Manufacturer of Clad Steel Pipe
Manufacturer of Lined Steel Pipe
Processor of Clad Steel Pipe
Processor of Lined Steel Pipe
Frequently asked questions
Are the steel line pipe suppliers listed here certified by OFMP?
No. OFMP is not API and does not certify, audit or endorse suppliers. Supplier profiles organize API certificate records that the source marks Active; confirm the certificate number, product scope and current status on the API Composite List before purchasing.
How do I check a supplier's API certificate?
Search the API Composite List by certificate number or company name and check that the status, facility address and product scope match the quotation. Read the guide
How do I contact a supplier?
Open a supplier profile. Active members can view the contact details a supplier has provided.
Standard and product names come from the API Composite List search snapshot (2026-10-10). Family groupings and Chinese reading aids are OFMP editorial additions, not official API classifications or translations. OFMP is not affiliated with API.
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