Q235B Q345B API 5L ASTM A53 API 5L

ERW / LSAW / SSAW Steel Pipe

Source ERW, LSAW, or SSAW welded steel pipe with API 5L or structural grade, OD, wall, PSL, weld NDT, hydro test, coating, MTC, and export delivery controlled.

MOQ: Typically 1 container
Lead time: 7-21 working days after confirmation
Origin: China
Monthly supply: 5,000+ metric tons per month
Standards: ASTM A53, API 5L, EN 10219
Surface: Bare or shop-coated, FBE, 3LPE, 3LPP, or other external coating by specification, Internal lining or flow coat by project requirement
Certificates: EN 10204 3.1 / MTC
Packing: Pipe and hollow-section lots are bundled by size and heat or lot where traceabi…

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PRODUCT TECHNICAL SPECIFICATION PLATE ORDER-SPECIFIC DATA

TECHNICAL METRICS

Material: Carbon Steel
Form: Pipe
Primary Grade: Q235B
Primary Standard: ASTM A53

LOGISTICS & DISPATCH

MOQ: Typically 1 container
Lead time: 7-21 working days after confirmation
Origin: China
Monthly supply: 5,000+ metric tons per month

Full specifications

Full specifications
Property	Value
Weld routes	ERW, LSAW, or SSAW only after project and mill-route confirmation
Pipeline standard	API 5L grade and PSL1/PSL2 as ordered
Dimensions	OD x wall x length from the approved MTO
Testing and coating	Hydro, weld NDT, bevel, and coating scope per PO or ITP
Outer Diameter	Φ21.3-3000mm
Use	Structure, piling, oil and gas transmission

Overview

ERW, LSAW, and SSAW welded pipe routes are selected around diameter, wall, service, project standard, mill capability, and the accepted weld inspection plan. The manufacturing abbreviations do not establish interchangeability. Pipeline buyers should state API 5L PSL level and coating requirements, while structural buyers should state the structural standard, grade, section duty, and dimensional tolerances. For a controlled quotation, the RFQ must identify the governing standard and grade, outside diameter or section size, wall thickness, length, end finish, quantity, coating, service, and destination port. The commercial review checks that the manufacturing route matches the intended duty before price release;…

Applications

Onshore pipeline and utility transmission packages
Large-diameter water and piling projects
Structural pipework where a welded route is permitted

Surface options

Bare or shop-coated
FBE, 3LPE, 3LPP, or other external coating by specification
Internal lining or flow coat by project requirement

Processing & form

Plain or beveled ends
Fixed-length cutting
External coating and internal lining
Hydrostatic testing and weld NDT by PO

RFQ documents & delivery

Packing, MTC, and inspection path — include them in your RFQ for an actionable quote.

Packing & delivery

Order-specific packing

Pipe and hollow-section lots are bundled by size and heat or lot where traceability is required. Export packing can include steel straps, waterproof wrapping, lifting points, bevel or thread protectors, end caps, and durable shipping marks. Bundle weight, loose-loading restrictions, container limits, discharge method, destination port, and any break-bulk lashing plan are confirmed before loading.

Quality assurance

Documents as ordered

Inspection is agreed against the purchase order, governing product standard, and any approved inspection and test plan. The review can cover grade and heat identity, dimensions, wall thickness, end preparation, visual condition, coating, hydrostatic testing, and NDT records where applicable. EN 10204 3.1 documentation and third-party witness points must be requested before production is released.

Supply confidence

Stock, inspection, and product uses

Fixed delivery proof plus this product’s applications — confirm stock, inspection, and end use before RFQ.

Steel bundles staged by lot in the warehouse

Warehouse & staged stock

Strapped coils and plates staged by lot so grade, thickness, and destination port can be matched quickly for shipment.

Factory capability Ask stock & lead time

Buyer verifying thickness and specs on site

Buyer visits & inspection

Overseas buyers and third-party inspectors are welcome to verify specs, heat numbers, and packing. SGS/BV support available.

Quality & standards Arrange inspection

Steel used in oil, gas, and pipeline work

Typical applications for this product

Typical uses for this product: Onshore pipeline and utility transmission packages; Large-diameter water and piling projects; Structural pipework where a welded route is permitted. Share your end use, environment, and packing needs in the RFQ.

View oil & gas Quote for this use case

FAQ

What should an RFQ for ERW / LSAW / SSAW Steel Pipe include?

State weld route, standard, grade, PSL, OD, wall, length, bevel, hydro and weld NDT, coating, quantity, and port. A complete line-item specification is required before manufacturing route, availability, inspection, and packing can be confirmed.

What quality documents are available for ERW / LSAW / SSAW Steel Pipe?

The ordered document pack can include mill certificates, lot or heat identity, dimensional and visual inspection records, and product-specific test reports. Third-party inspection must be agreed before production or stock allocation.

How is ERW / LSAW / SSAW Steel Pipe packed for export?

Packing is selected from the product form, unit weight, handling method, destination climate, container or break-bulk limits, and discharge plan. Confirm the destination port and any storage constraints on the RFQ.

Request a Quote

Send the complete ERW / LSAW / SSAW Steel Pipe specification, quantity, inspection scope, packing preference, and destination port for review.

Request Technical Quote WhatsApp for urgent specs

Web RFQ: formal quote + document path
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