Import Alloy Steel Pipe Fittings — Buy in wholesale FOB from Supplier in China

Shijiazhuang Bang Dong Pipe Trading Co., Ltd. offers alloy steel pipe fittings and forged flanges manufactured from chrome-molybdenum grades ASTM A182 F11 and F22. The size range extends from 1/2 inch to 48 inches, covering pressure classes from 150 through 2500 per ASME B16.5 and B16.47. These pressure classes span standard cast iron compatible ratings up through high-pressure forged steel applications in process critical service. The broader size range compared to typical pipe fitting catalogs suggests significant forging capacity or trading access to major Chinese flange and fitting manufacturers.

ASTM A182 F11 and F22 are forged low-alloy steels specified for flanges, fittings, valves, and similar pressure parts. F11 contains 1.00-1.50% chromium and 0.44-0.65% molybdenum, while F22 carries 2.00-2.50% chromium and 0.87-1.13% molybdenum, with both grades requiring normalizing or quenching and tempering to achieve specified mechanical properties. The ASME B16.5 standard governs flanges NPS 1/2 through NPS 24, while B16.47 covers NPS 26 through NPS 60 for larger diameters, with Series A (MSS SP-44) and Series B (API 605) dimensional alternatives. Pressure class 150 through 2500 designation follows the flange rating system where higher classes indicate greater pressure-temperature capability through increased wall section and bolting requirements.

Primary applications include oil and gas production headers, refinery process units, chemical reactor piping, and fossil fuel and nuclear power generation steam lines. The forged construction of flanges provides grain flow alignment and superior mechanical properties compared to cast equivalents. Buyers are typically EPC contractors, owner-operators, and maintenance organizations requiring replacement flanges for ASME B31.1, B31.3, or Section I and VIII piping systems. Shijiazhuang Bang Dong Pipe Trading Co., Ltd. should be asked to confirm whether they stock standard sizes or manufacture to order, their forging source relationships, and whether they provide material traceability to heat number and original mill melt practice.

Shijiazhuang Bang Dong Pipe Trading Co., Ltd. is located at Room 2901, Unit 2, Building 17, No. 295 Donggang Road, Yuhua District, Shijiazhuang, China. The supplier holds an imported supplier tier and harbor trust tier on the platform, with a response rate of 0.00 percent and zero hours average response time recorded. The imported tier designation suggests the company may source products from domestic manufacturers rather than manufacturing entirely in-house, which is common for trading companies in Shijiazhuang's steel distribution cluster. Buyers should clarify procurement channels and whether the company holds exclusive manufacturing agreements or sources from multiple forges on a spot basis.

The supplier profile does not specify year of establishment, number of employees, annual turnover, named reference clients, or specific quality system certifications. The stated address is a commercial office location in a multi-unit building rather than an industrial facility, reinforcing the likelihood of trading operations. What is confirmed is the product range (flanges and fittings in F11/F22), the dimensional and pressure class coverage, and the target industries. Buyers should request audited manufacturing partner details, quality system certificates of actual production facilities, and evidence of forging capability such as press tonnage, heat treatment furnace type, and NDE equipment. Direct communication through channels outside the platform messaging system is recommended given the zero percent response rate.