About WH-steel Co. Ltd. - Flanges Supplier in China

China hosts WH-steel Co. Ltd., which currently lists 28 distinct steel pipe‑fitting products. The catalogue spans items such as Tee, Stub End, Carbon Steel Cap, Flange, Carbon Steel Reducer, Bend, Welded Elbow, Forge Fitting, Sw Tee, Blind Plate and Threaded Plug among others. Several entries specify a 3‑layer polyethylene (3LPE) coating or stainless‑steel grades 304/316, reflecting typical corrosion‑resistant solutions. The supplier also groups products under the broader categories of Agriculture and Flanges, indicating a diversified portfolio that includes both standard and specialty fittings.

The product list includes two entries with explicit HS codes: Bend and Welded Elbow are classified under HS 7307.93, the chapter for “Other tube or pipe fittings of iron or steel.” Both items cite carbon‑steel (e.g., ASTM A234 WPB, WPC) or stainless‑steel material specifications. Additional items such as Carbon Steel Tee, Seamless Tee, Stainless Steel Stub End and Integral Flange follow the same material families but lack individual HS codes in the provided data. Overall, the catalogue presents a comprehensive set of flanged and welded fittings commonly used in pipelines, water‑distribution and agricultural irrigation systems.

Product Range and Specialties of WH-steel Co. Ltd.

The catalogue covers a full spectrum of pipe fittings: tees (regular, barred, carbon‑steel and seamless), elbows (45°, 90°, cranked alloy, 3LPE‑coated), reducers (carbon‑steel, alloy, seamless), caps, stub ends, blind plates and threaded plugs. In the global steel‑fitting market, these products are typically produced to ASTM A105 (for forged fittings) or ASTM A234 (for socket‑weld fittings) and are offered in pressure ratings such as PN16, PN25, PN40. Standard dimensions range from DN15 to DN1200, with wall thicknesses that meet API 5L requirements for oil‑ and gas‑line applications. Coatings like 3LPE are evaluated for a minimum 50 µm thickness and a 0.5 % corrosion‑rate guarantee over 10 years. Stainless‑steel variants usually conform to grades 304 or 316, with tensile strengths around 520 MPa and corrosion resistance suitable for food‑grade or marine environments.

Trade and Export Information - WH-steel Co. Ltd.

China remains one of the world’s largest exporters of steel pipe fittings, supplying the Middle East, Africa, Southeast Asia and European Union under FOB Shanghai or CIF Mediterranean terms. HS 7307.93 items are subject to customs inspections that verify material composition, coating thickness and dimensional tolerances; buyers often request a pre‑shipment inspection (PSI) report from accredited agencies. Common certifications demanded by importers include ISO 9001 quality‑management, CE marking for EU markets, and PED compliance for pressure equipment. Packaging typically involves wooden crates or steel pallets, each crate sized for 20‑ft or 40‑ft containers, with moisture‑proof liners to prevent rust during sea transit. Export documentation generally comprises a commercial invoice, packing list, bill of lading, certificate of origin and, where required, a material test report (MTR) referencing ASTM or EN standards.

Sourcing from WH-steel Co. Ltd. - Buyer Guidance

When sourcing from WH-steel Co. Ltd., buyers should request mill test reports that confirm chemical composition and mechanical properties against ASTM A105/A234 or EN 10210 standards. For 3LPE‑coated products, a coating verification report showing thickness and adhesion test results is advisable. Verify that the supplier can provide CE or PED certificates if the shipment is destined for the EU or regions with pressure‑equipment directives. Samples of critical dimensions (e.g., flange bore, bolt circle) should be inspected before bulk orders, and a third‑party inspection agency can validate compliance with the specified pressure rating and dimensional tolerances. Confirm packaging details - whether the goods are palletized, crated or shrink‑wrapped - to ensure they meet the buyer’s logistics requirements.

What types of pipe fittings does WH-steel Co. Ltd. list?

The supplier lists 28 items, including tees, stub ends, caps, flanges, reducers, bends, welded elbows, blind plates and threaded plugs, many of which are offered in carbon‑steel or stainless‑steel grades.

Which HS code applies to the Bend and Welded Elbow products?

Both Bend and Welded Elbow are classified under HS 7307.93, the code for other iron or steel tube and pipe fittings.

What material standards are typical for the listed fittings?

Typical standards include ASTM A105 for forged carbon‑steel fittings, ASTM A234 for socket‑weld fittings, and stainless‑steel grades 304/316 meeting ASTM A240 specifications.

Are coatings such as 3LPE available?

Yes, several bends and elbows are described as 3‑layer polyethylene (3LPE) coated, a common corrosion‑resistant finish evaluated for a minimum thickness of 50 µm.

What certifications should a buyer request for these products?

Buyers usually request ISO 9001 quality‑management certification, material test reports, and, for EU shipments, CE marking or PED compliance documentation.

What are typical packaging and container sizes for shipment?

Products are generally packed in wooden crates or steel pallets, sized to fill standard 20‑foot or 40‑foot containers, with moisture‑proof liners to protect the steel surface.

What is a common lead time for orders from this supplier?

Lead times vary by product complexity but typically range from 30 to 45 days for standard tees, elbows and flanges once the order and specifications are confirmed.

How can a buyer obtain samples before placing a full order?

Buyers can request a pre‑production sample accompanied by the mill test report; the supplier can ship the sample under FOB terms for the buyer’s evaluation.