FACTORY-DIRECT SUPPLY · API 5L PSL1 line pipe
Coated API 5L line pipe prepared for export

API 5L PSL1 Line Pipe — Factory-Direct Supply from Tianjin, China

FACTORY-DIRECT SUPPLY of API 5L / ISO 3183 PSL1 line pipe in Grades B through X70. Seamless or LSAW construction, bare or 3PE/FBE-coated, with EN 10204 3.1 certification. MOQ 28 metric tonnes, FOB any Chinese port.

Last reviewed: 12 November 2026.

B2B quotation — orders from 28 metric tonnes

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API 5L / ISO 3183PSL1Grades B–X70Seamless or LSAW3PE / FBEMOQ 28 t
PRODUCT IDENTITY

API 5L PSL1 line pipe for transmission and utility projects

This page covers API 5L PSL1 line pipe for oil, gas, water and utility service. Buyers specify the grade, outside diameter, wall thickness, length, construction route, coating, inspection and destination. We review the line list against the quoted standard before releasing a comparable quotation.

Oil and gas linesWater transmissionStation pipingFire mainUtility services
FBE-coated line pipe ready for a project
Coating and inspection requirements are confirmed against the purchase order.
Specifications

Typical API 5L PSL1 supply range

The final manufacturing route depends on diameter, wall, grade, quantity, coating and inspection requirements.

ItemTypical supply scopeOrder control
StandardAPI 5L / ISO 3183 PSL1Latest purchaser specification governs
GradesB, X42, X46, X52, X56, X60, X65, X70Grade and impact/testing requirements confirmed per order
ConstructionSeamless or LSAWSelected by size, grade and production route
Outside diameterTypically 2–24 in seamless; 16–56 in LSAWExact size and tolerance checked against the line list
LengthRandom, SRL, DRL or fixed lengthLength and end preparation confirmed in writing
CoatingBare, 3PE / 3LPE, FBE, internal epoxySystem, DFT and inspection quoted separately
DocumentsEN 10204 3.1 MTC; export and inspection documentsPer contract and production batch

Reference price: USD 690–780 per metric tonne FOB any Chinese port for standard bare line pipe. Final price depends on grade, size, quantity, coating and inspection. The signed contract governs.

Product specification level

PSL1 versus PSL2: choose from the project requirement

PSL1 is a product specification level, not a claim of low quality. PSL2 generally introduces more stringent requirements, but the exact scope is determined by the standard edition, grade, size and purchase specification.

QuestionPSL1PSL2
Best starting pointOrders whose specification calls for API 5L PSL1Project specifications requiring PSL2 controls
Technical scopeDefined by API 5L PSL1 and the purchase orderGenerally more stringent chemistry, testing, impact or NDT requirements
SubstitutionDo not downgrade a PSL2 requirementOffer only after reviewing the applicable specification
Decision ruleThe project design code, purchaser specification and signed contract control the required level.
Inspection and documents

Contract-linked traceability

Material certificates are issued for the corresponding contract and production batch. Inspection and coating records are confirmed against the order.

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Mill certificate

Manufacturer-issued EN 10204 3.1 mill test certificate for the contract and production batch.

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Dimension and hydrostatic records

Requirements and reports are confirmed against the purchase order.

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NDT and coating

NDT, DFT and coating inspection are quoted when required.

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Third-party inspection

SGS, BV, Intertek, TÜV or the buyer's nominated inspector can be coordinated.

Commercial terms

Reference terms, subject to the signed contract

DeliveryFOB any Chinese port; named loading port confirmed in the signed contract
Reference priceUSD 690–780 per metric tonne FOB any Chinese port for standard bare line pipe, subject to grade, size, quantity, coating and inspection
Payment30% T/T deposit; 70% before factory release
MOQ28 metric tonnes; sizes and grades can be mixed in one order
Lead time20–30 working days after receipt of deposit, subject to rolling production scheduling
ExcludedCoating, third-party inspection, ocean freight, insurance and bank charges are quoted separately unless included in the final contract
FAQ

API 5L PSL1 line pipe questions

What is API 5L PSL1 line pipe?
API 5L PSL1 line pipe is line pipe supplied to Product Specification Level 1 of API 5L / ISO 3183. The required grade, dimensions, construction route and testing are confirmed against the buyer's line list and purchase order.
Is PSL1 better than PSL2?
Neither level is universally better. PSL2 generally carries more stringent specification, testing and inspection requirements, while PSL1 is a distinct product level. The project specification and governing standard determine the correct choice.
Can API 5L PSL1 be supplied with 3PE or FBE coating?
Yes, when the purchase order specifies the coating system. 3PE / 3LPE, FBE and internal epoxy lining are quoted separately, with coating inspection and documentary requirements confirmed for the order.
What is the minimum order?
The minimum order is 28 metric tonnes per order. Sizes and grades can be mixed in one order, subject to the final specification and production review.
Which documents are supplied?
The manufacturer provides an EN 10204 3.1 mill test certificate for the corresponding contract and production batch. Packing list, commercial invoice, bill of lading and certificate of origin are included. Hydrostatic or NDT reports and special coating reports are quoted separately.
What are the payment, lead-time and delivery terms?
Payment is 30% T/T deposit and 70% before factory release. Lead time is 20–30 working days after receipt of the deposit, subject to rolling production scheduling. Delivery is FOB any Chinese port, with the named port confirmed in the signed contract.
Request a quotation

Send the line list for a comparable quotation

Include company, product, standard and grade, OD × wall thickness, quantity, coating, inspection, destination port and required documents.

Sales e-mailinfo@yuxindapipe.com
WhatsApp / Phone+86 188 9221 5978 — qualify first
LinkedInJiangyu Xue on LinkedIn
DeliveryFOB any Chinese port; named port confirmed in the contract
Working hoursMonday–Saturday, 08:30–20:00 (GMT+8)

B2B orders start at 28 metric tonnes. Any valid e-mail address can be used for our reply.

QUOTE-READY SPECIFICATION

API 5L PSL1 line pipe enquiry

Send the data that controls price, inspection and delivery. The same fields are used for e-mail and the qualified WhatsApp route.

  • Company and buyer type
  • Standard / grade / PSL
  • Size and wall thickness
  • Quantity in metric tonnes
  • Destination port

The enquiry opens in your e-mail application with the details filled in.

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