About Buck Copper Group Limited Company - Brass Tubes Supplier in China

Based in China, Buck Copper Group Limited Company lists seven active products across six top categories, including Brass Tubes, Copper Wires, Brass Coils, Tin, Industrial Chemicals, and Welding Wires & Supplies. The catalogue features Copper Wire classified under HS code 7403.11 and supplied as electrolytic copper with a purity of 99.99 % (TU1, TU2, C10200, C1020). Brass tube offerings comprise a seamless Brass Tube (HS 7407.11) made from brass alloys containing 62‑70 % copper and zinc, a CuZn10 Square Brass Tube (HS 7407.21) with a 90 % copper‑10 % zinc composition, and a CuZn5 Brass Foil (HS 7409.21) of approximately 95 % copper and 5 % zinc. Additional items include refined Tin Ingots (HS 8001.10) at 99.99 % purity, as well as Rosin‑Free Flux and Cored Solder Wire where HS codes are not specified.

The listed materials align with standard industry classifications for non‑ferrous metals and soldering consumables. Copper wire is presented in the standard electrolytic grade used for electrical conductors, while the brass tube and foil products correspond to common alloy designations such as H62‑H70, CuZn10 (C21000) and CuZn5 (CZ119). Tin ingots meet the typical 99.99 % purity required for solder alloy production and plating applications. The Rosin‑Free Flux is formulated for lead‑free soldering processes, and the Cored Solder Wire combines a copper core with a tin‑based alloy sheath. All products are identified by their respective HS code families, facilitating customs classification for international trade.

Product Range and Specialties of Buck Copper Group Limited Company

The copper wire offering adheres to IEC 60228 Class 1 specifications, with tensile strength around 340 MPa and a minimum cross‑section tolerance of ±5 %. Brass tubes are manufactured to ASTM B429 dimensions, with wall thickness tolerances of ±0.02 mm and typical outer diameters from 6 mm up to 50 mm. The CuZn10 square tube follows the C21000 standard, commonly supplied in lengths of 2 m to 6 m and thicknesses between 0.8 mm and 2 mm. CuZn5 brass foil is produced in rolls of 0.02 mm to 0.1 mm thickness, suitable for lamination and decorative applications. Tin ingots are cast in standard 25 kg or 500 kg batches, meeting the 99.99 % purity level required for high‑grade solder alloys. Rosin‑Free Flux typically complies with IPC‑TF‑830 standards for lead‑free soldering, and Cored Solder Wire is offered in diameters from 0.5 mm to 3.0 mm with a core composition of copper or nickel for enhanced thermal conductivity. The products are packed according to industry norms: copper wire on spools or reels, brass tubes in wooden crates with protective padding, foil in moisture‑sealed aluminum bands, and tin ingots in steel drums or wooden pallets, supporting safe handling during sea freight in 20‑ft or 40‑ft containers.

Trade and Export Information - Buck Copper Group Limited Company

China ranks among the world’s largest exporters of copper wire (HS 7403), brass tube and foil (HS 7407‑7409), and refined tin (HS 8001). Major import destinations include the United States, the European Union, Japan, and Southeast Asian manufacturing hubs, where the metals are used in electrical equipment, automotive components, and consumer electronics. Buyers typically require compliance with ISO 9001 quality management, RoHS restriction of hazardous substances, and REACH registration for the alloy compositions, especially for products destined for the EU market.

Customs clearance usually references the HS code families provided, and shipments are commonly dispatched under FOB or CIF terms using 20‑ft or 40‑ft containers. Standard packaging - spools for wire, crates for tubes, drums for tin - meets the International Maritime Organization’s cargo securing guidelines. Export documentation often includes a commercial invoice, packing list, certificate of origin, and, where applicable, a material safety data sheet (MSDS) for flux and solder wire.

Sourcing from Buck Copper Group Limited Company - Buyer Guidance

Prospective buyers should request a mill test report (MTR) for the copper wire confirming 99.99 % Cu purity, tensile strength, and annealing condition. For brass tubes and foil, a chemical analysis report specifying copper, zinc, and trace element percentages, together with dimensional inspection certificates, is essential. Tin ingots should be accompanied by an assay report verifying 99.99 % Sn content and impurity limits.

Flux and solder wire suppliers are expected to provide a safety data sheet (SDS) and a compliance statement for RoHS and lead‑free standards. Before placing an order, buyers should verify the HS code alignment, packaging dimensions, and any required pre‑shipment inspection reports such as CIQ (China Entry‑Exit Inspection). Typical lead times range from four to six weeks for standard sizes, with longer periods for customized dimensions.

What product categories are listed by Buck Copper Group?

The supplier lists Brass Tubes, Copper Wires, Brass Coils, Tin, Industrial Chemicals, and Welding Wires & Supplies, with specific items such as seamless brass tubes, CuZn10 square tubes, copper wire, tin ingots, rosin‑free flux and cored solder wire.

What are the key specifications of the copper wire offered?

The copper wire is electrolytic copper (TU1, TU2, C10200, C1020) with a certified purity of 99.99 % and conforms to IEC 60228 Class 1, typically supplied in diameters from 0.5 mm to 4 mm and a tensile strength around 340 MPa.

Which HS codes apply to the brass tube products?

The seamless brass tube falls under HS 7407.11, the CuZn10 square brass tube under HS 7407.21, and the CuZn5 brass foil under HS 7409.21, all within chapter 74 for non‑ferrous metal products.

What purity level is the tin ingot?

The tin ingot is refined to 99.99 % purity (HS 8001.10) and is usually supplied in standard 25 kg or 500 kg batches for downstream alloy and plating use.

Which documents should a buyer request before purchasing?

Buyers should ask for mill test reports or assay certificates, chemical composition analysis for brass alloys, safety data sheets for flux and solder wire, and standard export documents such as a commercial invoice, packing list and certificate of origin.

What are the typical minimum order quantities and packaging formats?

Minimum orders are generally one container load - approximately 20 tons for copper wire, 10 tons for brass tubes, or a single 25 kg tin ingot batch - packed on spools, wooden crates, or steel drums respectively, suitable for 20‑ft or 40‑ft container shipment.

Which regions most commonly import these Chinese metal products?

The United States, the European Union, Japan and Southeast Asian countries are the primary import markets for Chinese copper wire, brass tubes and tin ingots, driven by demand in electrical, automotive and consumer electronics manufacturing.

How are the flux and solder wire supplied?

Rosin‑Free Flux is supplied in sealed containers meeting IPC‑TF‑830 standards, while Cored Solder Wire is offered on reels or coils in diameters from 0.5 mm to 3.0 mm, both typically accompanied by a safety data sheet and RoHS compliance declaration.