Q235B Gr.B ASTM A53 API 5L

ERW Steel Pipe

ERW (electric resistance welded) steel pipe for structural frames, general line service, and export packages when project standards accept welded pipe. Confirm OD, wall, standard/grade, ends, weld NDT, coating, and packing before quotation with Tsingshan Steel (Shandong).

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, ASTM A500
Packing: Export seaworthy packing with traceable bundle labels and loading photos.

Request Technical Quote WhatsApp Contact Technical Sales

PRODUCT TECHNICAL SPECIFICATION PLATE ORDER-SPECIFIC DATA

TECHNICAL METRICS

Standards: ASTM A53 / API 5L / EN 10219 / ASTM A500 as specified
Grade: Gr.B / Q235B or project-agreed commercial grade
Wall thickness: About 1–17.5 mm class typical; confirm schedule or WT
Length / ends: SRL/DRL or fixed length; PE or BE as required

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
Product form	ERW / HFW welded steel pipe
Standards	ASTM A53 / API 5L / EN 10219 / ASTM A500 as specified
Grade	Gr.B / Q235B or project-agreed commercial grade
OD	Approx. 21.3–660 mm class common for ERW (confirm PO)
Wall thickness	About 1–17.5 mm class typical; confirm schedule or WT
Length / ends	SRL/DRL or fixed length; PE or BE as required
Testing	Weld NDT and hydrostatic test per standard / PO
Documents	MTC EN 10204 3.1; test records as agreed
Export packing	Seaworthy pipe bundles with end and mark protection

Overview

ERW steel pipe from Tsingshan Steel (Shandong) is specified for export buyers who need welded carbon steel pipe for structural work, general fluid service, and project packages where ERW/HFW is accepted by the standard. Purchase reviews typically lock standard and grade (for example ASTM A53 Gr.B, API 5L Gr.B, EN 10219 / Q235B as contracted), outside diameter, wall thickness or schedule, length, end finish (PE/BE), surface coating or bare, and weld NDT / hydrostatic test scope. Before offer release we align seaworthy bundle packing, destination port, and documents. MTC EN 10204 3.1, heat/pipe marks, and optional SGS/BV/Intertek inspection can be coordinated before loading. Send standard, grade, OD x wall,…

Applications

Structural frames, scaffolding-related members, and building pipework where ERW is specified
General water, air, and low-pressure fluid lines when project standards accept welded pipe
Fabrication shops needing consistent OD/wall for cutting, welding, and galvanizing downstream
Export mixed-size packages with seaworthy bundles and mill-linked documentation

RFQ documents & delivery

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

Packing & delivery

Order-specific packing

Export seaworthy packing with traceable bundle labels and loading photos.

Quality assurance

Documents as ordered

Mill certificate, inspection support, and shipment documentation can be coordinated before loading as ordered.

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: Structural frames, scaffolding-related members, and building pipework where ERW is specified; General water, air, and low-pressure fluid lines when project standards accept welded pipe; Fabrication shops needing consistent OD/wall for cutting, welding, and galvanizing downstream. Share your end use, environment, and packing needs in the RFQ.

View oil & gas Quote for this use case

FAQ

What should I confirm before ordering ERW steel pipe?

Confirm standard and grade, outside diameter, wall thickness or schedule, length, end finish, coating, quantity, destination port, packing method, weld/hydro test scope, and whether EN 10204 3.1 MTC or third-party inspection is required.

When should I choose ERW instead of seamless steel pipe?

ERW is commonly selected for structural pipe and general service when the project standard accepts electric resistance welded pipe and cost/availability matter. Seamless is typically preferred for higher pressure, critical process, or specifications that explicitly require seamless. Share design code, pressure, and medium so we can advise the practical option.

What export documents can ship with ERW steel pipe?

We can coordinate mill test certificates (typically EN 10204 3.1), packing lists, commercial invoice support, heat or pipe identification, loading photos, and optional SGS, BV, or Intertek inspection before shipment.

Request a quote for ERW Steel Pipe

Send grade, size, quantity, and destination port for a practical export quotation.

Request Technical Quote WhatsApp for urgent specs

Web RFQ: formal quote + document path
WhatsApp: fast confirm for urgent specs