Import 304 Stainelss Steel Flange — Buy in wholesale FOB from Supplier in China

Jiangsu Seonjip Technology Co., Ltd. produces 304 stainless steel forged flanges engineered for DN60 PN16 piping systems, with a material specification of 304/304L austenitic stainless steel. The product range extends from 1/2 inch to 60 inches outer diameter, covering pressure classes from 150 to 2500, with types including weld neck, slip-on, blind, socket weld, threaded, and lap joint. Grades beyond 304/304L encompass 316/316L, 316H, 310, 904L, F55 (Zeron 100), and numerous nickel alloys including Monel 400, Inconel series, Hastelloy variants, and duplex/super-duplex stainless steels. The forging process sequence includes material testing, cutting, heating, forging, machining, heat treatment, finish processing, and inspection, with standards compliance to ANSI B16.5, ANSI B16.47, ASME B16.5, ASME B16.36, BS4504-3.1, DIN, JIS B2220, and GOST 12821-80.

Heat treatment options cover normalising, tempering, annealing, and quenching, selected according to final service requirements and code of construction. Machining is performed in rough and finished stages to achieve the dimensional tolerances and surface finish required for gasket seating and bolting compatibility. Quality control includes chemical component analysis, mechanical properties testing, technical properties verification, visual inspection, penetrant testing (PT), and ultrasonic testing (UT). The 304/304L grade offers excellent corrosion resistance in chemical processing, oil and gas, marine, and power generation environments where chloride levels remain moderate and temperatures do not exceed approximately 425 degrees C for sustained pressure service.

Target industries span construction, shipbuilding, chemical processing, pharmaceutical and bio-medical, petrochemical and refinery, environmental, food processing, aviation, chemical fertilizer, sewage disposal, desalination, and waste incineration. Packaging employs wooden boxes, wooden crates or pallets, and PE covers for moisture protection during export. Delivery time ranges from 7 to 40 days depending on specification complexity and order volume. Trade terms offered are FOB, CIF, CFR, CIP, DAP, DDP, and EXW, with payment through T/T, L/C, D/A, D/P, Western Union, MoneyGram, or customised arrangements for offline orders.

Jiangsu Seonjip Technology Co., Ltd. is headquartered at No.68 Xingtai Road, Hailing District, Taizhou City, Jiangsu Province, 225300, China, within the Yangtze River Delta manufacturing corridor. The company holds a harbor trust tier. The response rate is shown as 0.00 percent with zero average response hours, meaning no response history is recorded. Prospective buyers should initiate direct enquiry and assess communication responsiveness before depending on this supplier for time-critical projects.

The supplier profile does not disclose year of establishment, factory floor area, number of employees, annual forging capacity, revenue figures, named clients, or specific industry certifications such as ISO 9001, ISO 14001, or ASME U/U2. What is confirmed is a broad alloy portfolio, extensive standard coverage, in-house heat treatment, and NDE capability including PT and UT. The presence of nickel alloy and super-duplex grades suggests technical sophistication, though buyers should verify actual melt source, forging press capacity, and whether the company operates its own foundry or sources forgings. Third-party inspection by SGS, BV, or TUV is not mentioned and should be requested for critical applications.