About King Wall Trading Corperation - Stainless Steel Pipes & Pipe Fittings Supplier in China

King Wall Trading Corperation is based in China and lists five active products across stainless steel pipe, tube, sheet and strip categories. The catalogue includes a stainless steel round pipe 201, a generic stainless steel round pipe, a welded square tube identified as TP304, a stainless steel sheet from the 300 series, and a stainless steel strip from the 200 series that carries HS code 7219.31. These items are grouped under the top categories Stainless Steel Pipes & Pipe Fittings, Stainless Steel Tubes, and Stainless Steel Rods & Strips, reflecting the supplier’s focus on structural and material forms used in industrial applications. The strip is specified as Stainless Steel 200 Series (Austenitic, Chromium‑Manganese‑Nickel).

The five listed products represent common forms of stainless steel used in engineering projects. Round pipes (including the 201 grade) are typically supplied to meet ASTM A312 or EN 10217 standards, while welded square tubes such as TP304 align with ASTM A529 and EN 10220 specifications. Sheets from the 300 series correspond to grades like 304 or 321 and are often classified under HS chapter 73 for flat-rolled products. Together, the catalogue covers a breadth of dimensions, tolerances and surface finishes that are standard in the global stainless‑steel market.

Product Range and Specialties of King Wall Trading Corperation

The supplier’s catalogue covers stainless steel round pipe 201, a standard round pipe, a welded square tube TP304, sheet from the 300 series, and strip from the 200 series (HS 7219.31). In the industry, round pipes are offered in diameters from 15 mm to 600 mm with wall thicknesses conforming to ISO 1127, while square welded tubes are commonly sized 20 mm to 300 mm with tolerances of ±0.5 mm. Sheets in the 300 series are usually supplied in thicknesses from 0.5 mm to 6 mm and widths up to 2000 mm, meeting ASTM A240 or EN 10088 standards. The 200‑series strip is typically produced in widths of 500 mm to 1500 mm, thicknesses of 0.3 mm to 2 mm, and is graded by chemical composition to meet ISO 3506‑1 requirements.

Trade and Export Information - King Wall Trading Corperation

China is one of the world’s largest exporters of stainless‑steel semi‑finished products, and shipments from the region are directed to construction, automotive, oil‑and‑gas, and appliance manufacturers in Europe, North America, the Middle East and Southeast Asia. Products such as round pipe and welded square tube fall under HS chapter 73 (e.g., 7304 for tubes and pipes), while flat‑rolled strips and sheets use HS code 7219.31, the same code listed for the supplier’s 200‑series strip. Buyers typically request mill test reports, ISO 9001 certification, and where applicable CE marking or RoHS compliance. Export logistics commonly involve 20‑foot or 40‑foot containers, with bundles wrapped in protective film and pallets for safe handling. Incoterms such as FOB Shanghai or CIF destination port are standard for this product group.

Sourcing from King Wall Trading Corperation - Buyer Guidance

When sourcing from King Wall Trading Corperation, buyers should request a Mill Test Report (MTR) that confirms chemical composition, tensile strength, elongation and hardness for each grade (e.g., 201, 304, 300 series). Verification of the HS code on commercial invoices helps ensure correct tariff treatment, especially for the 7219.31 strip. Request any applicable certifications - ISO 9001, CE or RoHS - before finalizing the order, and confirm the dimensional tolerances (diameter, wall thickness, sheet thickness) match the project specifications. Samples of the strip or sheet material are commonly provided in 1 kg or 5 kg units to allow testing of surface finish, corrosion resistance and mechanical properties.

What stainless steel grades are covered by the listed products?

The catalogue includes round pipe 201 (AISI 201), a generic round pipe that may be supplied in 304 or 316 grades, welded square tube TP304 (AISI 304), sheet from the 300 series (typically 304 or 321) and strip from the 200 series (AISI 200 series austenitic alloy).

Which HS code applies to the stainless steel strip?

The stainless steel strip 200 series is listed with HS code 7219.31, which covers flat‑rolled stainless‑steel strip, hot‑rolled, of width 600 mm or more.

What certifications should a buyer request for these stainless‑steel products?

Buyers should ask for an ISO 9001 quality‑management certificate, a Mill Test Report, and, where required by the destination market, CE marking or RoHS compliance documentation.

What are typical dimensions and tolerances for the welded square tube TP304?

Welded square tubes are commonly offered in sizes from 20 mm to 300 mm side length, with wall thicknesses ranging from 2 mm to 12 mm and dimensional tolerances of ±0.5 mm as per EN 10220.

How are the sheets from the 300 series usually packaged for export?

Sheets are typically bundled in protective film, stacked on wooden pallets, and loaded into 20‑ft or 40‑ft containers. Each pallet may hold up to 1 ton of material depending on thickness.

What documentation is needed to clear customs for the strip under HS 7219.31?

Customs clearance generally requires a commercial invoice showing HS 7219.31, the Mill Test Report, and any applicable origin certificates such as a Certificate of Origin for preferential tariff treatment.

What is a common lead time for these stainless‑steel products from China?

Lead times for standard sizes of round pipe, square tube, sheet and strip are typically 30‑45 days from order confirmation, assuming no special heat‑treatment or custom dimensions are required.

What minimum order quantities (MOQ) apply to the stainless steel strip?

Suppliers often set an MOQ of one standard shipping container (approximately 20 tons) for strip, but smaller quantities can be arranged in 1 ton or 5 ton partial loads upon request.