Import A213 T1,5,11,12,91 Rtj Rf Ff Alloy Steel Flanges — Buy in wholesale FOB from Supplier in China

A213 T1, T5, T11, T12 and T91 alloy steel flanges from Shijiazhuang Jinmo Pipe Imp & Exp Trading Co., Ltd. are manufactured to ASTM A213 standards for high-temperature and high-pressure service in power generation, oil and gas, and petrochemical piping systems. The available grades cover chromium-molybdenum and chromium-molybdenum-vanadium-niobium alloy compositions, with T91 offering the highest creep resistance for advanced thermal applications. Face types include ring type joint (RTJ), raised face (RF) and flat face (FF) configurations to match diverse flange mating requirements. The supplier, based in Hebei Province, trades these flanges for import and export with grade-dependent pricing.

The Cr-Mo grades (T1, T5, T11, T12) provide increasing levels of oxidation resistance and elevated-temperature strength as alloy content rises, while T91 adds vanadium and niobium for precipitation strengthening and finer grain structure. RTJ facings incorporate precision-machined grooves for metal-to-metal seal integrity under cyclic pressure, RF facings suit standard gasketed joints, and FF facings accommodate lower-pressure systems or cast iron mating flanges. Typical heat treatment involves normalising and tempering to achieve the specified room-temperature and elevated-temperature mechanical properties. The chromium content across these grades ranges from approximately 1.00 % to 9.00 %, with molybdenum additions of 0.44 % to 1.00 % typical for the standard grades and T91 reaching 0.85-1.05 % Mo with 0.18-0.25 % V and 0.06-0.10 % Nb.

These alloy steel flanges connect boiler tubes, superheater coils, headers and piping in fossil-fuel and combined-cycle power plants, as well as process lines in refineries and chemical plants. Buyers include EPC contractors, maintenance procurement teams for utilities, and distributors serving the energy sector. Grade selection depends on design metal temperature and pressure, with T91 reserved for ultra-supercritical boilers exceeding 565 degrees Celsius. Surface finish, hardness testing and dimensional inspection against ASME B16.5 or B16.47 series A/B should be confirmed with the supplier before order placement.

Shijiazhuang Jinmo Pipe Imp & Exp Trading Co., Ltd. is located at Xiaomaxincun, Yuhua District, Shijiazhuang 050000, in Hebei Province, China. The company operates as an import and export trading firm, with its supplier tier classified as imported and its trust tier listed as harbour. The business address places it in a northern Chinese industrial zone with established steel and pipe manufacturing infrastructure. No response rate data is recorded, and average response hours stand at zero, which means prospective buyers should initiate direct contact rather than expect proficiently timed follow-up.

The listing presents the company as a trader rather than a mill manufacturer, sourcing A213 alloy steel flanges across multiple Cr-Mo and Cr-Mo-V-Nb grades for global distribution. The product range targets high-temperature, high-pressure applications where material specification compliance is critical. No information is provided about factory ownership, production capacity, annual revenue, employee count, client roster, or certification scope. Buyers should verify the company's quality management system, whether it holds ISO 9001 or API credentials, and its subcontractor or mill-source relationships before committing to volume orders.