Import 304 316 Stainless Steel Welded Flange — Buy in wholesale FOB from Supplier in China

304 and 316 stainless steel welded flanges from Hebei Tirico Pipeline Co., Ltd. are forged pipe connection components manufactured to ASME, ANSI, DIN, JIS, API, and MSS standards for high-pressure pipeline systems. The supplier produces these flanges in sizes from 1/2 inch to 24 inch (DN15 to DN600), with non-standard sizes available from 10mm to 5000mm per customer drawings. Grade 304 flanges suit general corrosion-resistant applications, while 316 with its molybdenum addition handles chloride-bearing media in chemical and marine environments. Tirico holds ISO9001:2000, TUV PED, and AD-2000 certification for its quality management and pressure equipment compliance.

The forging process shapes austenitic stainless steel billet material under controlled temperature to align grain flow and eliminate cast structure weaknesses, producing superior mechanical properties to cast alternatives. Welding neck, slip-on, blind, and threaded flange types are available in the standard range, with facing options including raised face, flat face, and ring joint groove. Pressure ratings span ANSI Class 150 through Class 2500, with 304 and 316 flanges maintaining toughness down to cryogenic temperatures. The supplier's custom range extends to 30 tonnes single piece weight, indicating substantial forging press capacity for heavy industrial projects. Surface finish is typically machined to 3.2-6.3μm Ra on sealing surfaces, with smoother finishes available for critical gasket applications.

Primary industries served include oil and gas extraction, petrochemical refining, water treatment infrastructure, nuclear and conventional power generation, shipbuilding, food processing, and pharmaceutical manufacturing. The 316 grade is specified for seawater cooling systems, desalination plants, and chemical process lines where 304 would suffer pitting. Buyers should confirm required pressure-temperature rating per ASME B16.5 or EN 1092-1, verify flange facing compatibility with selected gasket material, and request material test certificates with actual chromium, nickel, and molybdenum percentages. For nuclear or safety-critical applications, additional non-destructive testing (ultrasonic or dye penetrant) should be specified and certified.

Hebei Tirico Pipeline Co., Ltd. is located in Wuliyao Industrial Park, Yanshan County, Cangzhou City, Hebei Province 061300. Cangzhou is a recognised concentration for pipeline component manufacturing in China, with extensive supply chains for carbon steel, stainless steel, and alloy steel pipe, fittings, and flanges. The supplier holds a harbor trust tier on the platform, though like many industrial suppliers it shows a 0.00% response rate with zero average response hours, indicating no platform messaging engagement is recorded. Buyers should initiate direct contact through the supplier's business channels rather than relying solely on platform inquiry systems.

Tirico's stated certifications include ISO9001:2000 quality management, TUV PED for European pressure equipment directive compliance, and AD-2000 certification for German market pressure component acceptance. The company manufactures across a substantial size and weight range, from small 0.5kg flanges to 30-tonne custom forgings, suggesting significant forging and machining infrastructure. No specific factory floor area, employee count, annual output tonnage, or named client references are provided in the available data. The supplier's product range extends beyond stainless steel to carbon steel and alloy steel flanges, indicating diversified metallurgical processing capability. Buyers should verify current certification validity dates and scope directly, as ISO9001:2000 is a superseded version and the supplier may hold updated ISO9001:2015 registration.