API 5L X52 PSL2 is a specification for seamless and welded steel line pipe used for transportation of oil, gas, and water in the petroleum and natural gas industries. Here are some key specifications for API 5L X52 PSL2:
Chemical Composition of API 5L X52 PSL2：
Carbon (C): ≤0.24%
Silicon (Si): ≤0.45%
Manganese (Mn): ≤1.40%
Phosphorus (P): ≤0.025%
Sulfur (S): ≤0.015%
Nickel (Ni): ≤0.40%
Chromium (Cr): ≤0.40%
Copper (Cu): ≤0.50%
Molybdenum (Mo): ≤0.15%
Vanadium (V): ≤0.10%
Titanium (Ti): ≤0.04%
Aluminum (Al): ≤0.02%
Mechanical Properties API 5L X52 PSL2：
Yield Strength: ≥52,000 psi (360 MPa) minimum
Tensile Strength: ≥66,700 psi (460 MPa) minimum
Elongation: ≥21% minimum (for pipe with a specified wall thickness ≤0.875 in or 22 mm), or ≥19% minimum (for pipe with a specified wall thickness >0.875 in or 22 mm)
Impact Test: The standard specifies requirements for Charpy V-notch impact testing at temperatures as per applicable standards.
Dimensional Requirements:
Outer Diameter (OD): Nominal Pipe Size (NPS) 2" and above (60.3 mm and above)
Wall Thickness (WT): Schedule 10 through 160, STD, XS, XXS
Manufacturing Process:
X52 PSL2 pipes can be manufactured by either seamless or welded methods. Seamless pipes are produced from solid round billets, while welded pipes are made from strip or plate.
Additional Requirements:
API 5L X52 PSL2 specifies additional supplementary requirements such as cold expansion, high-frequency welding (HFW), and enhanced leak resistance.
It's important to note that these specifications are a summary, and the complete API 5L X52 PSL2 standard should be referred to for detailed and up-to-date information. Compliance with this specification ensures the quality and performance of the steel line pipe used in the oil and gas industry.
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