Updated Oct 17, 2026 · Public platform & industry data

Oct 17, 2026 Updated

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2026 Top 10 Large Diameter Carbon Steel Flange Manufacturers in China

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Top-rated Large Diameter Carbon Steel Flange suppliers, How to choose a Large Diameter Carbon Steel Flange manufacturer, Best Large Diameter Carbon Steel Flange companies in China

The top 10 Large Diameter Carbon Steel Flange manufacturers in China for 2026 are: Hengshui Ruici Rubber Products Co., Ltd, Cangzhou Huishang Pipe Fitting Manufacturing Co., Ltd, Hebei Haihao High Pressure Flange Pipe Fitting Group Co., Ltd, Hebei Qinghe Pipe Fitting Manufacturing Co., Ltd, Zhejiang Chenye Metal Technology Co., Ltd, Shanghai Hongguan Stainless Steel Products Co., Ltd, Shanxi Huanguan Heavy Industry Group Co., Ltd, Hebei Tengtai Pipeline Manufacturing Co., Ltd, Hebei Penghai Pipeline Manufacturing Co., Ltd, Cangzhou Jiangdong Pipeline Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Hengshui Ruici Rubber Products Co., Ltd
Overall Score4.9 / 5
Est. Date2020-04-13
Registered Capital3000K CNY

Hengshui Ruici Rubber Products Co., Ltd. is located at No. 92 Dazhouzhuang Village, Duqiao Town, Jing County, Hengshui City, Hebei Province. It was established on April 13, 2020, with the registration authority of Jing County Market Supervision Administration and the legal representative being Zhou Mingjian. Core products: Large Diameter Carbon Steel Flange

Top 2
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Cangzhou Huishang Pipe Fitting Manufacturing Co., Ltd
Overall Score4.8 / 5
Est. Date2018-06-12
Registered Capital18000K CNY

Cangzhou Huishang Pipe Fittings Manufacturing Co., Ltd., whose registered address is located in the west of the road 400 meters north of memorial archway, Zhangguandian East, Mengcun Hui Autonomous County, Cangzhou City, Hebei Province, is registered by the Market Supervision Administration of Mengcun Hui Autonomous County, and its legal representative is Fan Xiaoxue. Its business scope includes general projects: building decoration, plumbing pipe parts and other metal products for building; Manufacturing of metal products for safety and firefighting purposes; Manufacturing of metal daily necessities; Sales of metal products; Manufacturing of hardware products; Wholesale of hardware products; Manufacturing of metal structures; Sales of metal structures; Manufacturing of concrete structural components; Sales of concrete structural components; Mechanical parts and component processing; Sales of mechanical parts and components; Sealing component manufacturing; Sales of seals; Fastener manufacturing; Sales of fasteners; Sales of metal materials; Sales of valves and plugs; Sales of pumps and vacuum equipment; Sales of anti-corrosion materials; Sales of insulation materials; Import and export of goods (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Core products: Large Diameter Carbon Steel Flange, Big End And Small End, Socket Fittings

Top 3
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Hebei Haihao High Pressure Flange Pipe Fitting Group Co., Ltd
Overall Score4.8 / 5
Est. Date1997-08-28
Registered Capital108000K CNY

Hebei Haihao High Pressure Flange Pipe Fitting Group Co., Ltd., with its registered address at Fulin Road, Xindu Road, Mengcun County, Hebei Province, is registered with the Market Supervision Administration of Mengcun Hui Autonomous County. The legal representative is Dong Zhenhai, and its business scope includes processing, manufacturing, and sales of flanges, pipe fittings, anti-corrosion, insulation, wear-resistant pipe fittings, pipeline supports and hangers, power plant accessories, and welded structural components; Sales: Steel, steel pipes, valves, hardware accessories; To engage in the export business of products and technologies produced by our enterprise, as well as the import business of machinery, equipment, spare parts, raw materials, and technologies required by our enterprise. (Projects that require approval by law can only be operated after approval by relevant departments.). Core products: Large Diameter Carbon Steel Flange, Flanged Pipe Fittings, Marine Flange

TOP4
Hebei Qinghe Pipe Fitting Manufacturing Co., Ltd
Overall Score4.7 / 5
Est. Date2017-04-01
Registered Capital10000K CNY

Hebei Qinghe Pipe Fitting Manufacturing Co., Ltd., registered in Fanzhuang Village, Yanshan Town, Yanshan County, with the registration authority of Yanshan County Market Supervision Administration and the legal representative of Fan Xiaokang, engages in the production of flanges, pipe fittings, steel pipe fittings, heads, insulation and anti-corrosion pipelines, wear-resistant pipelines, polyurethane lining, ultra-high molecular weight lining, and polyethylene pipelines; Sales of lined rubber, lined plastic pipes, equipment accessories, rubber and plastic products, steel pipes, steel plates, round steel, metal materials, hardware and electrical materials, compensators, pipe supports and hangers, power plant accessories, and valves; To engage in the export business of products and technologies produced by our enterprise, as well as the import business of machinery, equipment, spare parts, raw materials, and technologies required by our enterprise, except for goods and technologies restricted or prohibited from import and export by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Large Diameter Carbon Steel Flange, Stainless Steel Blind Flange, Suction Bell Mouth

TOP5
Zhejiang Chenye Metal Technology Co., Ltd

No. 46 Shabei Road, Qisan Village, Shacheng Street, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province

Overall Score4.7 / 5
Est. Date2016-01-14
Registered Capital10680K CNY

Zhejiang Chenye Metal Technology Co., Ltd. is located at No. 46 Shabei Road, Qisan Village, Shacheng Street, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province. It was established on January 14, 2016 and registered with the Longwan District Market Supervision Administration of Wenzhou City. The legal representative is Wang You. Core products: Large Diameter Carbon Steel Flange, Undertaking Welding Flanges, Stainless Steel Flange

TOP6
Shanghai Hongguan Stainless Steel Products Co., Ltd
Overall Score4.6 / 5
Est. Date2017-08-21
Registered Capital11800K CNY

Shanghai Hongguan Stainless Steel Products Co., Ltd., located at Room 103, 1st Floor, No. 11, Lane 6666, Songze Avenue, Qingpu District, Shanghai, was established on August 21, 2017. The registration authority is the Qingpu District Market Supervision Administration, and the legal representative is Zhuang Binzhou. Core products: Large Diameter Carbon Steel Flange

TOP7
Shanxi Huanguan Heavy Industry Group Co., Ltd
Overall Score4.6 / 5
Est. Date2012-01-10
Registered Capital58000K CNY

Shanxi Huanguan Heavy Industry Group Co., Ltd., with its registered address in Cuijiazhuang Village, Shenshan Township, Dingxiang County, Xinzhou. The registration authority is the Dingxiang County Market Supervision Administration, and the legal representative is Yan Zekang. Its business scope includes general projects such as forging and powder metallurgy product manufacturing; Sales of forgings and powder metallurgy products; Mechanical parts and component processing; Sales of mechanical parts and components; Manufacturing of general components; Sales of metal products; Manufacturing of metal materials; Sales of metal materials; Manufacturing of metal structures; Sales of metal structures; Mechanical equipment research and development; Retail of hardware products; Operation of wires and cables; Sales of chemical products (excluding licensed chemical products); Sales of generators and generator sets; Information technology consulting services; Metal surface treatment and heat treatment processing; Manufacturing of generators and generator sets; Import and export of goods; Technology import and export; Sales of solar thermal utilization equipment; Sales of solar thermal power generation equipment; Sales of solar thermal utilization products; Sales of solar thermal power generation products; Solar power generation technology services; Manufacturing of photovoltaic equipment and components; Sales of photovoltaic equipment and components; Rental of photovoltaic power generation equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Road freight transportation (excluding dangerous goods); Power generation business, transmission business, and power supply (distribution) business. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Large Diameter Carbon Steel Flange, Roll Shaft Forgings, Cylinder Forging

TOP8
Hebei Tengtai Pipeline Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2011-06-03
Registered Capital50000K CNY

Hebei Tengtai Pipeline Manufacturing Co., Ltd., with its registered address located in Puwacheng Park, Yanshan County Economic Development Zone, is registered with the Yanshan County Market Supervision and Administration Bureau, and its legal representative is Jia Zhaohui. Its business scope includes manufacturing pipelines, pipeline fittings and accessories, flange forgings, valves, power plant accessories, supports and hangers, conveying machinery and accessories, and sales of metal materials; Import and export business of self-produced products and technologies of enterprises. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Large Diameter Carbon Steel Flange, Filter, Manhole

TOP9
Hebei Penghai Pipeline Manufacturing Co., Ltd

Yanta Road, Yanshan County, the location of Hongmiao Kiln is slightly opposite

Overall Score4.4 / 5
Est. Date2016-06-02
Registered Capital20000K CNY

Hebei Penghai Pipeline Manufacturing Co., Ltd. is located across from Hongmiao Kiln on Yanta Road in Yanshan County. It was established on June 2, 2016, with the registration authority of Yanshan County Market Supervision Administration and the legal representative being Ma Ruijie. Core products: Large Diameter Carbon Steel Flange

TOP10
Cangzhou Jiangdong Pipeline Co., Ltd
Overall Score4.4 / 5
Est. Date2015-05-27
Registered Capital5000K CNY

Cangzhou Jiangdong Pipeline Co., Ltd., registered at Hengjun Company in Puwacheng Industrial Zone, Yanshan County, with the registration authority of Yanshan County Administration for Industry and Commerce and the legal representative of Xu Chao, is engaged in the sales of spiral steel pipes, straight seam steel pipes, seamless steel pipes, petroleum casings, 3PE anti-corrosion steel pipes, TPEP anti-corrosion steel pipes, epoxy powder anti-corrosion steel pipes, coated composite pipes, non-toxic drinking water steel pipes, insulation pipes, pipeline pipes, bent pipes, alloy pipes, stainless steel pipes, galvanized pipes, fittings, anti-corrosion and insulation materials, pipeline equipment accessories, pipes, plates, wires, elbows, flanges, tees, large and small head heads, blind plates, manholes, valves, compensators, expansion joints, waterproof casings, supports and hangers, wear-resistant pipelines. Wear resistant pipe fittings series products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Large Diameter Carbon Steel Flange, Compensator, Valve

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Hengshui Ruici Rubber Products Co., Ltd2020-04-13Large Diameter Carbon Steel Flange3000K CNYNot Supported
Cangzhou Huishang Pipe Fitting Manufacturing Co., Ltd2018-06-12Large Diameter Carbon Steel Flange, Big End And Small End, Socket Fittings18000K CNYSupported
Hebei Haihao High Pressure Flange Pipe Fitting Group Co., Ltd1997-08-28Large Diameter Carbon Steel Flange, Flanged Pipe Fittings, Marine Flange108000K CNYNot Supported
Hebei Qinghe Pipe Fitting Manufacturing Co., Ltd2017-04-01Large Diameter Carbon Steel Flange, Stainless Steel Blind Flange, Suction Bell Mouth10000K CNYNot Supported
Zhejiang Chenye Metal Technology Co., Ltd2016-01-14Large Diameter Carbon Steel Flange, Undertaking Welding Flanges, Stainless Steel Flange10680K CNYNot Supported
Shanghai Hongguan Stainless Steel Products Co., Ltd2017-08-21Large Diameter Carbon Steel Flange11800K CNYSupported
Shanxi Huanguan Heavy Industry Group Co., Ltd2012-01-10Large Diameter Carbon Steel Flange, Roll Shaft Forgings, Cylinder Forging58000K CNYSupported
Hebei Tengtai Pipeline Manufacturing Co., Ltd2011-06-03Large Diameter Carbon Steel Flange, Filter, Manhole50000K CNYSupported
Hebei Penghai Pipeline Manufacturing Co., Ltd2016-06-02Large Diameter Carbon Steel Flange20000K CNYNot Supported
Cangzhou Jiangdong Pipeline Co., Ltd2015-05-27Large Diameter Carbon Steel Flange, Compensator, Valve5000K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of large-diameter carbon steel flanges, it is recommended to prioritize checking key technical parameters such as nominal diameter and pressure rating to ensure compatibility with pipeline system design standards, especially in high-pressure scenarios such as petrochemicals or large-scale water transmission projects.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support. Such suppliers can usually provide products that meet ASTM A105 or ANSI B16.5 standards stably.
  • In corrosive environments such as thermal power plants or shipbuilding, attention should be paid to the carbon steel material grade and anti-corrosion treatment process of flanges to avoid premature failure due to medium characteristics.
  • When purchasing large-diameter carbon steel flanges, it is recommended to evaluate the supplier's historical delivery capability based on industry data support, such as the stability of bulk supply in municipal pipeline projects.

Knowledge Base

Q

Baidu AiGou has found pictures of different categories of carbon steel large-diameter flanges for you, taking you on a journey to appreciate the diversity and uniqueness of carbon steel large-diameter flanges. At the same time, we also recommend high-quality carbon steel large-diameter flange products for you, allowing you to easily and quickly find the most suitable carbon steel large-diameter flange for yourself when purchasing.

Q

The selection method of carbon steel large-diameter flanges requires a comprehensive consideration of multiple factors. Firstly, it is necessary to clarify the pressure rating of the pipeline system and determine the nominal pressure of the flange based on this to ensure that it can withstand the corresponding pressure and ensure safe operation. Secondly, accurately measure the outer diameter of the pipeline, match the corresponding flange outer diameter specifications, and ensure the degree of connection. Furthermore, considering the working temperature, no

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs