Stainless Steel Flanges

Chuxin Flange: Your Professional Stainless Steel Flanges Manufacturer!

 

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.

 

 

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Types of Stainless Steel Flanges
 
01/

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.

02/

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.

03/

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.

04/

Stainless Steel JIS Neck Flange
Stainless steel neck flanges are one such accessory used to support stainless steel pipes.

05/

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.

06/

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.

 

Stainless Steel Flanges Specification

 

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.

Size

SS Flanges are available in different sizes, ranging from 1/2 inch to 48 inches

Class/Pressure

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

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.

01

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.

02

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.

03

Power Generation

Power plants, including nuclear, fossil fuel, and renewable energy facilities, use ss flanges to connect pipes and valves in critical systems.

04

Aerospace

They are used in aircraft and aerospace applications where high strength and resistance to extreme temperatures are required.

05

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.

06

Wastewater Treatment

Stainless steel flanges are used in wastewater treatment plants to connect pipes and components in various treatment processes.

07

Pharmaceutical Industry

Pharmaceutical manufacturing facilities use stainless steel flanges to connect sanitary piping systems, ensuring the purity and integrity of the products being produced.

08

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.

09

Chemical Processing

Stainless steel flanges are crucial in chemical processing plants to connect pipes carrying corrosive and hazardous chemicals.

10

 

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.

 

 

Stainless Steel Flanges Installation Requirements

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.

Stainless Steel DIN Cover Flange

 

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.

 

 

 

Other Services

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.

Stainless Steel Welding Neck Flange

 

FAQ

Q: Are stainless steel flanges expensive?

A: Stainless steel flanges can be more expensive than other types of flanges, but they offer several advantages, including resistance to corrosion and durability.

Q: What is the most common type of stainless steel used in flanges?

A: The most common types of stainless steel used in flanges are 304, 316, and 321.

Q: Can stainless steel flanges be used in corrosive environments?

A: Yes, stainless steel flanges are resistant to corrosion and can withstand harsh environments and corrosive fluids.

Q: How often should stainless steel flanges be inspected?

A: Stainless steel flanges should be inspected regularly for signs of wear, corrosion, or damage. The frequency of inspections will depend on the application and the level of use.

Q: What are the standards for stainless steel flanges?

A: The standards most often applied to stainless steel include: AWWA C228 sets the minimum material requirements and dimensions for stainless steel flanges used in stainless steel piping systems. ASTM A182 covers forged or rolled piping system components intended for high-temperature service.

Q: Do stainless steel flanges rust?

A: Now here we have a stainless-steel flange and a carbon steel flange. Carbon steel flanges like these are prone to rusting if they are not properly protected. Whereas stainless-steel flanges typically do not rust unless they are contaminated by carbon steel.

Q: What are stainless steel flanges used for?

A: Stainless steel flanges are an essential component of pipes and tubes, which helps to connect them. They are circular disks with concentric ridges or projections on their surface that help to grip the pipes and tubes tightly.

Q: What is the material code for stainless steel flange?

A: Flanges made of stainless steel are referred to as "stainless steel 304 flanges," also abbreviated as "SS 304 flange." Common material standards and grades include ASTM A182 Grade F304/L and F316/L, with pressure ratings ranging from Class 150 to 2500 and 300 to 600, respectively.

Q: What is the difference between carbon steel and stainless steel flanges?

A: Stainless steel is known for its excellent corrosion resistance, making it ideal for use in harsh environments where exposure to moisture, acids, and other contaminants is common. On the other hand, carbon steel is more prone to corrosion, especially in environments with high levels of moisture or acidity.

Q: Would there be any problems if we connect a carbon steel flange to a stainless steel flange?

A: Galvanic corrosion is the reason connecting carbon and stainless steel can lead to problems. Galvanic corrosion is when one metal causes another metal to corrode and break down.

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