Import Cr Black Steel Pipe — Buy in Bulk from Supplier in China

The Cr Black Steel Pipe supplied by Qingdao Rehond Precision Tube Co., Ltd. is manufactured from carbon steel with a black oxide finish, designed for structural and fluid conveyance applications. Available in standard outer diameters ranging from 19.05 mm to 168.3 mm and wall thicknesses between 1.65 mm and 12.7 mm, these pipes comply with ASTM A53 Grade B and EN 10217-1 standards. The black finish offers basic corrosion resistance during storage and transport but is not a substitute for coating in aggressive environments.

The material composition typically includes 0.18% to 0.25% carbon, 0.30% to 0.60% manganese, and trace elements such as phosphorus and sulfur within ASTM limits. These pipes are produced via seamless or welded processes depending on diameter and application, with standard lengths of 5.8 m or 6 m. The typical tensile strength ranges from 415 MPa to 550 MPa, and yield strength from 240 MPa to 345 MPa, consistent with industry benchmarks for low-alloy carbon steel pipes.

These pipes are commonly purchased by contractors in oil and gas infrastructure, mechanical fabrication shops, and industrial construction projects requiring non-corrosive, high-strength conduits. Buyers typically order in full container loads or palletized batches, with packaging in wooden crates or steel banding. Trade terms offered include FOB Qingdao and CIF, with lead times averaging 25 to 35 days after deposit confirmation. MOQ is negotiable but generally starts at 1 metric ton per size.

Qingdao Rehond Precision Tube Co., Ltd. is a manufacturer based in Jimo, Qingdao, Shandong Province, China, with a physical address listed on public trade registries. The company specializes in precision steel tubing and pipe products, with export experience to Southeast Asia, the Middle East, and Africa. Its profile on trade platforms indicates a harbor-level trust tier, suggesting verified physical presence and export documentation, but no public certifications, production capacity figures, or client lists are disclosed.

The supplier does not claim ISO certification, years in operation, or workforce size. It does not list internal quality control procedures or third-party inspection partnerships. Buyers should request mill test reports and dimensional inspection certificates directly. Response metrics show no recorded activity, indicating potential delays in communication; direct contact via phone or email is recommended before placing orders.