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- Carbon & Carbon Alloy Steel
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- Pipe Flanges
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- Industrial Valves
01
ISO 3183 Petroleum and Natural Gas Industries - Steel Pipe for Pipeline Transportation Systems
Ordering Information
Purchasers must specify the following when ordering:
- Quantity, dimensions (OD, WT, length)
- Steel grade and product specification level (PSL)
- Type of pipe (seamless, welded, etc.)
- End finish (plain, beveled, threaded, etc.)
- Additional requirements (impact testing, HIC testing, etc.)
- Delivery conditions (e.g., heat treatment)
Steel Grades and Product Specification Levels (PSL)
Main Steel Grades (Yield Strength-Based):
- PSL 1: Standard quality (e.g., L245, L290, L360, L415, L450, L485, L555)
- PSL 2: Enhanced quality (e.g., L245R, L290R, L360Q, L415Q, L450Q, L485Q, L555Q)
- PSL 3: Special applications (higher toughness, sour service)
Key Differences Between PSLs:
- PSL 1: Basic mechanical properties, standard testing.
- PSL 2: Stricter chemical composition, tougher impact requirements, additional NDT.
- PSL 3: Highest toughness, additional testing (e.g., CTOD for fracture mechanics).
Inspection & Testing Requirements
Mandatory Tests:
- Chemical analysis (C, Mn, S, P, Si, etc.)
- Tensile testing (yield strength, tensile strength, elongation)
- Impact testing (Charpy V-notch at specified temperatures)
- Hydrostatic testing (minimum test pressure = 95% SMYS × WT × factor)
- Non-destructive testing (NDT) (ultrasonic, radiographic, or eddy current)
Supplementary Tests (if specified):
- Hardness testing (for sour service)
- HIC/SSC testing (NACE TM0177 / TM0284 for sour environments)
- CTOD testing (for PSL 3 and critical applications)
- Macro/microstructure examination
Dimensional and Tolerances
- Outside diameter (OD) and wall thickness (WT) tolerances
- Length tolerances (random, exact, or range lengths)
- Straightness and ovality requirements
Marking and Certification
- Pipes must be marked with:
- Manufacturer’s name/logo
- Standard (ISO 3183:2019)
- Steel grade, PSL, size, heat number
- Inspection stamps (if applicable)
- Certification: Mill test certificates (MTC) must include test results.
Additional Requirements
- Sour service compliance (if applicable, per ISO 15156/NACE MR0175)
- Field weldability (pre-qualified welding procedures)
- Coating compatibility (for external corrosion protection)
Conclusion
ISO 3183:2019 provides comprehensive specifications for pipeline steel pipes, ensuring safety, reliability, and performance in harsh environments. The standard differentiates between PSL levels to meet varying operational demands, from standard to high-toughness and sour service applications.
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