Stainless Steel Flanges
Our company provides Stainless Steel Flanges in various materials.
We stock hundreds of high-quality stainless steel flanges to meet your needs and piping specifications. We have an extensive inventory of multiple stainless steel flanges. Most of our high quality, flanges are ready to ship upon request.


lewis Liu
sales Manager
Stainless Steel Flanges
Stainless steel flanges provide easy access for cleaning, inspection, and modification. Stainless steel flanges connect with pipe and fittings to form a piping system that delivers air, water, natural gas, oil, and steam in plumbing applications and food and dairy processing.
Flanges are more important parts of pipelines. Some more important pipelines put forward higher requirements on flange materials during construction, such as higher strength, high-temperature resistance, high-pressure resistance, low-temperature resistance, corrosion resistance, wear resistance, etc. Carbon steel flanges cannot fully meet the requirements of special physical and chemical properties, so stainless steel flanges appear.
Stainless steel Flanges are durable, resist corrosion from caustic chemicals, corrosive fluids, oils, and gases, and withstand pressure and high temperatures.
Stainless steel Flanges are made from closed die forged, solution heat treated, pre-machined, sandblasted, CNC machined, turned, milled, drilled, threaded, etc.
Here is a detailed feature and performance table for stainless steel flanges in English, including data ranges for specifications, common standards, types, flange faces and connection methods, and the manufacturing process:
Feature/Performance | Description |
---|---|
Corrosion Resistance | Stainless steel flanges are renowned for their exceptional corrosion resistance, making them ideal for applications in corrosive environments, such as chemical processing and marine industries. |
High Strength | Stainless steel flanges exhibit high strength, allowing them to withstand elevated pressures and mechanical stress. |
Temperature Resistance | These flanges maintain their strength and integrity at both high and low temperatures, suitable for extreme temperature applications. |
Hygienic Properties | Stainless steel is known for its hygienic properties, making stainless steel flanges suitable for food processing, pharmaceuticals, and cleanroom applications. |
Material Grades | Stainless steel flanges come in various material grades, with some common grades being: |
– ASTM A182 F304 | A commonly used austenitic stainless steel for general-purpose applications. |
– ASTM A182 F316 | An austenitic stainless steel with enhanced corrosion resistance, suitable for aggressive environments. |
– ASTM A182 F321 | Stainless steel with added titanium for improved resistance to intergranular corrosion. |
– ASTM A182 F51 (Duplex) | Duplex stainless steel with a balanced combination of corrosion resistance and strength, ideal for offshore and marine applications. |
Specification Sizes | Stainless steel flange specifications and sizes vary depending on standards (such as ANSI B16.5, ASME B16.47, etc.) and specific application requirements. Here are typical data ranges: |
– Flange Diameter | From 1/2″ (15mm) to 48″ (1200mm) |
– Flange Thickness | From 1/4″ (6mm) to 6″ (150mm) |
– Number and Spacing of Bolt Holes | Varies with specifications and pressure ratings, typically 4, 8, 12, or more, with different spacing. |
Common Standards | Stainless steel flanges often adhere to the following standards: |
– ANSI B16.5 | A flange standard established by the American National Standards Institute, widely used in various engineering projects. |
– ASME B16.47 | A flange standard developed by the American Society of Mechanical Engineers for large and high-pressure flanges. |
Types | Stainless steel flanges come in various types, including: |
– Weld Neck Flange | Used in high-pressure applications, featuring a neck that is welded to the pipe for added strength and stress distribution. |
– Slip-On Flange | Commonly used in pipeline systems, allowing the flange to slide over the pipe and be welded in place. |
Flange Faces and Connection Methods | Stainless steel flanges typically have two types of flange faces and connection methods: |
– Flat Face | Forging the blanks into the desired flange shape, enhances their mechanical properties. |
– Raised Face | The Flange face is slightly raised, often used in high-pressure or high-temperature applications, and sealed with gaskets. |
Manufacturing Process | The general manufacturing process for stainless steel flanges includes: |
– Cutting | Cutting the required flange blanks from raw stainless steel materials. |
– Forging | Forging the blanks into the desired flange shape, enhancing their mechanical properties. |
– Machining | Processing the forged flanges, including hole drilling, thread machining, and surface finishing. |
– Inspection | Conducting various quality inspections to ensure compliance with standards and specifications. |
– Packaging and Delivery | Packaging the final stainless steel flange products and delivering them to customers or project sites. |
This comprehensive table provides detailed information about the features, performance, common material grades, specification sizes, standards, types, flange faces and connection methods, and the manufacturing process of stainless steel flanges. It will help you gain a comprehensive understanding of stainless steel flanges’ characteristics, enabling you to make informed decisions regarding material and specification choices to meet specific engineering requirements. Please note that selecting the right specifications, sizes, and flange types is crucial to ensuring the effectiveness and reliability of flanges in a system.
We carry a large inventory of 304 and 316 stainless steel flanges in many types and sizes. We stock hundreds of high-quality stainless steel flanges to meet your needs and piping specifications. We have an extensive inventory of multiple stainless steel flanges. Most of our high-quality, flanges are ready to ship upon request.
Stainless steel Flange types including blind, butt weld, lap joint, slip-on, socket weld, and threaded, are available in a variety of sizes and shapes.
Select from stainless pipe flanges such as stainless steel blind plate flanges, stainless raised face blind flanges, stainless lap joint flanges, stainless steel slip-on plate flanges, raised face socket weld flanges, raised face threaded flanges, raised face weld neck flanges, raised face slip-on flanges.
We also carry a line of iron flanges and gasket kits in a variety of materials including rubber, non-asbestos, and Teflon.
Speak to one of our specialists and find out which flange products are available to meet your flange and piping specifications. View an overview of our stainless steel product offerings.