ASTM A672 Welded Steel Pipe

Product Overview

ASTM A672 steel pipes are electric‑fusion welded pipes manufactured in-house, fully compliant with ASTM international standards. Based on the welding process, they are classified into two types: submerged‑arc welded (SAW) pipes and gas‑metal‑arc welded (GMAW) pipes. Submerged‑arc welding relies on an electric arc that burns beneath a layer of flux powder, resulting in stable weld bead formation and high-quality welds. Custom lengths can be produced to meet specific project requirements; standard industry lengths are 5.8 m and 6 m.
These hollow-section steel pipes are widely used in fluid‑transport applications, serving as pipelines for crude oil, natural gas, industrial gases, water, and particulate solid media. They can also be employed as raw material for manufacturing annular mechanical components, thereby enhancing material utilization, streamlining machining processes, and reducing material waste and processing time. Typical finished products include rolling‑bearing rings and jack‑sleeve fittings. Our plant specializes in providing end‑to‑end custom manufacturing of JCOE large‑diameter longitudinal submerged‑arc welded steel pipes.

Complete Technical Specifications Sheet

Standard Sales Contract Terms

The following terms and conditions constitute the entire, legally binding agreement between the parties. Any additional or conflicting provisions contained in the buyer’s purchase order shall have legal effect only upon written confirmation by our duly authorized representative, duly signed and sealed. Our act of shipment shall not be deemed acceptance of any additional terms appended to the buyer’s order. If any provision is held invalid by a court of law, the remaining provisions of this contract shall remain fully valid and enforceable.
All purchase orders shall become effective only upon issuance of a formal written price confirmation by our authorized personnel. Shipment without such written price confirmation shall not constitute our acceptance of the unit prices specified in the buyer’s order.
This factory reserves the right to supply substitute pipe materials of the same material, quality, and performance without prior notice to the buyer. If the buyer refuses to accept the substitute goods, they must provide a written statement at the quotation stage or upon placing the formal order, explicitly prohibiting any substitution of pipe materials.

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