Frequently Asked Questions
What is the main purpose of the ISO 3183:2019 standard?
ISO 3183:2019 specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.
What are the primary differences between PSL 1 and PSL 2?
PSL 1 provides a standard quality level for steel pipe, while PSL 2 contains additional mandatory requirements such as stricter chemical composition, mandatory toughness testing, and more rigorous non-destructive inspection.
Which mandatory tests are required for ISO 3183 pipes?
Mandatory tests include chemical analysis, tensile testing, Charpy V-notch impact testing, hydrostatic testing to ensure pressure integrity, and non-destructive testing (NDT).
Can ISO 3183 pipes be used for sour service?
Yes, pipes intended for sour service must meet additional requirements, typically designated under PSL 2 or PSL 3, including HIC (Hydrogen-Induced Cracking) and SSC (Sulfide Stress Cracking) testing according to NACE standards.
What information should I provide when requesting a quote?
You should provide the quantity, outer diameter (OD), wall thickness (WT), length, steel grade, PSL level, type of pipe (seamless or welded), end finish, and any specific supplementary test requirements.
Are mill test certificates (MTC) provided with these pipes?
Yes, all pipes must be accompanied by certification such as a Mill Test Certificate (MTC) that details the chemical analysis and mechanical test results to ensure compliance with the ISO 3183 standard.
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