Bulk Supply · No Middlemen · 2,800+ Specifications
Q235B Q345B ERW Round Steel Pipe, ASTM API, OD 21.3–1219.2 mm — cold rolled surface with ±5% tolerance, bending processing available for on-site fabrication. Q235B serves general structural frames, while Q345B delivers higher yield strength for load-bearing infrastructure. Every batch ships with original mill test certificates and optional SGS/BV third-party inspection, backed by ISO 9001:2015 certified production and complete export documentation for hassle-free customs clearance.
Send your size list, grade and monthly tonnage -- our export team returns pricing, stock status and documentation plan.
Technical Data
Non-standard sizes, grades and surface finishes are produced to order. Confirm exact tolerances with our engineering team before contract.
| Parameter | Value |
|---|---|
| Material Grade | Q195 - Q690 · 201 / 304 / 316L · ASTM A500 |
| Standard | ASTM A554 / A500 · EN 10219 / 10210 · JIS G3466 · GB |
| Production Type | ERW Welded · Seamless · Hot Dip Galvanized |
| Size Range | 20×20 - 500×500 mm · Wall thickness 0.8 - 20 mm |
| Length | 5.8 m / 6 m / 12 m · Custom cutting available |
| Surface Finish | BA Mirror · No.4 Satin · Pickled · Galvanized |
| MOQ | 1 ton trial order · Full container contract volume |
| Lead Time | Ready stock 3-7 days · Custom 15-25 days |
| Packing | Plastic film + woven bag + steel strapping, seaworthy |
| Port / Terms | FOB Qingdao · CIF / CFR · EXW negotiable |
Where It Is Used
Steel frames, curtain wall supports, canopies and load-bearing hollow sections for commercial projects.
Highway guardrails, bridge components, transmission towers and municipal engineering works.
Equipment frames, agricultural machinery, conveyor structures and fabricated assemblies.
Handrails, balustrades, interior fittings and decorative mirror-finish stainless tube.
Shelving systems, display racks, office furniture tubing and hardware wholesale supply.
Fluid conveyance frameworks, platform structures and corrosion-resistant piping supports.
Full Description
¥610.00
Q235B Q345B ERW Round Steel Pipe, ASTM API, OD 21.3–1219.2 mm — cold rolled surface with ±5% tolerance, bending processing available for on-site fabrication. Q235B serves general structural frames, while Q345B delivers higher yield strength for load-bearing infrastructure. Every batch ships with original mill test certificates and optional SGS/BV third-party inspection, backed by ISO 9001:2015 certified production and complete export documentation for hassle-free customs clearance.
Request Your Q235B Q345B ERW Pipe Quote with Mill Test Certificates
Send your specifications to admin@sdxinjiyuan.com or contact us via WhatsApp at +86 188 5315 7756 to receive pricing, delivery timelines, and sample mill test certificates within 12 hours.
Shandong Xin Jiyuan Special Steel Tube Co., Ltd
No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
www.sdxinjiyuan.com
Inquiry · Factory-Direct Supply
Share your required sizes, steel grades, monthly tonnage and destination port. Our export team returns a loaded-container quotation within 12 hours, including stock status, lead time and full documentation plan.
sales@xinjiyuan-steel.com · +86 531 8888 0000 · Mon-Sat 08:30-19:00 GMT+8
20,000+
Tons monthly capacity
2,800+
Specifications in stock
50+
Countries served
3
Production lines
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