Stainless Steel Flanges
Chuxin Flange Fitting Co., Ltd., formerly known as Yongxing Jinggong Pipe Fitting Factory, founded in 1994, is a non-regional high-tech enterprise specializing in the design, development, production, sales and after-sales of stainless steel flanges. We provide stainless lap joint flange, stainless socket welding flange, stainless steel 8 character blind plate and other products which are sold well all over the country and exported to overseas countries and regions.
Why Choose Us
Quality Control
In order to offer premium-quality products, Chuxin provides advanced inspection devices and complete inspection measures, builds a strict QC team to realize the quality control during the whole process from raw materials inspection, process detection to finished products and application.
Advanced Equipment
Our company has processing equipment and advanced testing instruments including hundreds of high-precision CNC lathes and desktop spectrometers, portable spectrometers, universal testing machines, impact testing machines, ultrasonic flaw detectors, metallographic detectors, Rockwell hardness testers, low-temperature cryogenic treatment tanks, etc.
Technology Certification
Our products are produced and inspected strictly in accordance with GB, AISI, ASTM, API, JIS, BS so as to control and safeguard the quality of products. We successively obtained ISO9001-2008 quality control system and CE (2014/68/EU) certification and API certification.
Professional after-sales service
Ensure the normal operation of the entire process from manufacturing to sales, the professional technical team is efficient and the after-sales service can meet the higher requirements of the third customers.
Types of Stainless Steel Flanges
Stainless Steel DIN Cover Flange
A stainless steel cover flange is a mechanical component used to cover and protect flanged connections, such as pipes, valves, or other equipment.
Stainless Steel Welding Neck Flange
Butt welding flanges are not deformed, well sealed, widely used, with corresponding rigid and elastic requirements and reasonable butt welding thinning transition.
Stainless Lap Joint Flange
Lap joint flanges are not welded to the pipe and are, therefore, removable and reusable. Lap Joint Flanges have a flat and flat face and are, therefore, suitable for applications that require alignment flexibility.
Stainless Steel JIS Neck Flange
Stainless steel neck flanges are one such accessory used to support stainless steel pipes.
Stainless Steel Pipe Flange
Stainless steel pipe flanges are an essential component of pipes and tubes, which helps to connect them. Stainless steel pipe flanges are highly durable and can withstand high pressure and temperature.
Stainless Steel Threaded Flange
Threaded flanges are made by machining the inner bore of the flange into a pipe thread and connecting it with a threaded pipe.
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Material Grades |
Stainless steel flanges are made from different grades of stainless steel such as 304/304L/304H, 316/316L/316Ti, 321/321H, 310/310S, 317/317L, 347/347H, 904L & 446 Flanges. |
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Size |
SS Flanges are available in different sizes, ranging from 1/2 inch to 48 inches |
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Class/Pressure |
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
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Standards |
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
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Face Type Flanges |
Plain/Flat Raised Face, Ring-Type Joint (RTJ), Tongue and Groove (T&G), Male and Female (M&F) |
Benefits of Stainless Steel Flanges
Corrosion Resistance
Stainless steel flanges are significant evidence of corrosion and oxidation, which ensures sturdiness and reliability in harsh environments.
Durability
The energy of stainless steel flanges lets in them to face as hundreds as excessive pressure and temperatures, making them appropriate for stressful applications.
Aesthetic Appeal
Stainless steel flanges have a complicated and easy appearance, it sincerely is visually attractive in uncovered piping systems.
Low Maintenance
Due to their resistance to rust and corrosion, stainless steel flanges require minimum protection, lowering time-honored operational prices.
Uses of Stainless Steel Flanges
Petrochemical Industry
In refineries and chemical plants, stainless steel flanges are crucial for connecting pipes, valves, and equipment that handle corrosive and high-temperature materials.
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Food and Beverage Industry
They are preferred in the food and beverage industry due to their hygienic properties. They are used in the construction of processing equipment and pipelines.
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Shipbuilding
Stainless steel flanges are used extensively in shipbuilding for their resistance to saltwater corrosion. They connect various components in a ship’s piping systems.
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Power Generation
Power plants, including nuclear, fossil fuel, and renewable energy facilities, use ss flanges to connect pipes and valves in critical systems.
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Aerospace
They are used in aircraft and aerospace applications where high strength and resistance to extreme temperatures are required.
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Construction
In construction, stainless steel flanges are used in building HVAC systems, plumbing, and fire protection systems to connect pipes and ensure a secure and leak-free installation.
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Wastewater Treatment
Stainless steel flanges are used in wastewater treatment plants to connect pipes and components in various treatment processes.
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Pharmaceutical Industry
Pharmaceutical manufacturing facilities use stainless steel flanges to connect sanitary piping systems, ensuring the purity and integrity of the products being produced.
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Automotive
In the automotive industry, stainless steel flanges find application in exhaust systems, providing a durable and corrosion-resistant connection between exhaust pipes and components.
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Chemical Processing
Stainless steel flanges are crucial in chemical processing plants to connect pipes carrying corrosive and hazardous chemicals.
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Manufacturing Process of Stainless Steel Flanges
Material Selection
The material to be used in the production of stainless steel flanges is carefully chosen, typically being stainless steel.
Cutting and Shaping
Stainless steel plates or bars are cut into specific dimensions and shapes, determining the outer diameter, inner diameter, and thickness of the flange.
Drilling
Drilling is carried out to create holes within the flanges.
Machining and Turning
The surfaces of the flanges are smoothed and machined, ensuring the flange's surface is even and smooth.
Gasket Groove Addition
Some types of flanges are equipped with gasket grooves to facilitate gasket usage.
Testing and Quality Control
Manufactured flanges undergo quality control processes. Leak tests may also be conducted.
Marking and Labeling
The produced flanges are marked with labels containing information about their type, size, and material.
Packaging and Shipping
Finally, the flanges are properly packaged and prepared for transportation.
1. Surface Cleanliness: Prior to installation, ensure that flange surfaces are impeccably smooth and clean. Thoroughly remove any oil stains and rust spots.
2. Gasket Selection: Opt for gaskets boasting exceptional oil resistance, aging resistance, elasticity, and mechanical strength.
3. Welding Control: When welding stainless steel flanges, meticulously control welding current to prevent flange overheating, which could compromise performance.
4. Uniform Fastening: Distribute tightening force evenly across stainless steel flanges, with gasket tightening kept within an appropriate range, typically around 1/3 of the flange pressure.
5. Stabilizing Component Addition: Enhance flange stability by incorporating suitable stabilizing components.

Customization Process
Initial Inquiry & Consultation
An initial discussion your requirements with our engineering or sales team. We may may suggest adjustments or recommend optimal solutions based on your product details.
Material Selection
Specify the material grade and desired properties (e.g., strength, corrosion resistance). If uncertain, our team can recommend suitable materials.
Quote & Proposal
Feasibility of the design. Production process (open-die, closed-die, ring rolling, etc.). Material availability and lead times. Once evaluated, the sales team will provide a detailed quote.
Customer Approval
Review the quotation and purchase order will be sent by email to confirm the order. Include any additional instructions or special conditions.
Contract Agreement
If applicable, sign a formal agreement outlining responsibilities, timelines, and warranties.
Manufacturing
Utilize processes such as forging, cutting, machining, and heat treatment to shape and refine the flange to the desired specifications.
Quality Inspection
Conduct dimensional checks, non-destructive testing (NDT), and mechanical property testing to ensure the flange meets quality standards.
Packaging and Delivery
The flange product is packed securely to prevent damage during transit. Products are labeled with relevant information, such as material grade, part number, and order details.
Delivery Time: For stocks, we can send the goods to loading port within 7 days after receiving your deposit. For production period, it usually needs about 10days- 30days after receiving the deposit.
Package: Our staff wrapped flanges fittings with plastic foam individually, put them into wooden cases or pallets, bundled wooden cases with nylon rope.
Shipping Method: We offer sea and air shipping methods depending on your order quantity.
Payment Terms: Accepted payment methods are L/C, T/T, Paypal and Western Union.
MOQ: 1 pieces.

FAQ
We're well-known as one of the leading stainless steel flanges manufacturers in China. Please feel free to buy customized stainless steel flanges at competitive price from our factory. Contact us for more cheap products.
Stainless Steel Flange Cover, Stainless Steel DIN Threaded Flange, Stainless Steel 8 Character Blind Plate
