Import Black Steel Flange — Buy in wholesale FOB from Supplier in China

Cangzhou Yongwang Pipeline Manufacturing Co., Ltd. produces black steel forged flanges for high-pressure piping systems, with size coverage from 1/2 inch to 80 inches (DN15 to DN2000) and pressure ratings spanning 150# through 2500# under ANSI B16.5 and ASME B16.47 standards. The forged carbon steel construction uses A105 material as standard, with welding neck, slip-on, blind, socket welding, threaded, and lap-joint designs available to match joint preparation and loading requirements. Wall thickness options include STD, SCH40, SCH80, SCH160, and SCHXXS for welding neck configurations.

The black paint coating provides basic atmospheric corrosion resistance for storage and transit, while yellow transparent paint, cold dip galvanizing, and hot dip galvanizing are offered as alternatives for specific environments. EN1092-1, DIN, GOST 12820-80/12821-80, and JIS B2220 standards are also covered, with materials adapted to each norm: C22.8, S235, S235JR, P235GH for EN; ST37.2 for DIN; CT-20 for GOST; and SS400 for JIS. Stainless steel grades 304/304L and 316/316L, plus 1.4301 and 1.4404, are available for corrosive service applications across all standard families.

These flanges serve oil and gas transmission pipelines, petrochemical processing plants, water treatment facilities, and thermal power generation systems where pressure integrity and dimensional standardisation are critical. Buyers should confirm the exact standard, pressure class, facing type, and material grade required by their piping specification, as well as the surface finish and NDE requirements. Export shipment uses seaworthy plywood cases or wooden pallets, though exact packing details and Incoterms must be verified directly with Cangzhou Yongwang Pipeline Manufacturing Co., Ltd.

Cangzhou Yongwang Pipeline Manufacturing Co., Ltd. is located in Yanshan County, Cangzhou, Hebei Province, with postal code 061300. The supplier holds an imported tier designation and a harbor trust level, with no response rate or average response time data available in the profile. This profile does not state year of establishment, production floor area, headcount, annual turnover, or specific certifications held. Buyers should request ISO 9001, API, or PED compliance evidence if required for their project quality plan.

The listing focuses on forged flange manufacture across multiple international standards, suggesting production capability oriented toward export markets. No client references, project portfolios, or third-party audit information is provided. The absence of response metrics indicates that direct communication, possibly via trade show introduction or agent referral, may be necessary to establish quoting and sampling timelines. Buyers should verify factory inspection reports, material test certificates (MTC), and dimensional inspection records before placing trial orders.