Stainless Steel 303 Flanges

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Stainless Steel 303 Flanges Manufacturer, Exporter and Supplier in Dubai, UAE

Stainless Steel Flanges Exporter In Dubai UAE, Stainless Steel 303 Flanges Manufacturer In Dubai UAE, SS 303 Flanges, ASTM A182 Stainless Steel 303 Flanges Suppliers In Dubai UAE

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Stainless Steel 303 flanges are integral components within piping systems, prized for their remarkable mechanical attributes and corrosion resistance. These flanges are custom-built from Stainless Steel 303, a variant renowned for its excellent machinability and formability. With its composition rich in chromium and nickel, Stainless Steel 303 flaunts superior corrosion resistance, making it ideal for applications demanding resilience against harsh environments. Additionally, its alloying elements foster enhanced mechanical properties, including formidable strength, toughness, and wear resistance. This amalgamation of features renders Stainless Steel 303 flanges indispensable in diverse industries, ensuring reliable performance and longevity in demanding operational conditions.

Stainless Steel 303 Flanges Specifications


Stainless steel 303 Flanges


ASME/ANSI B16.5 ASME B16.47(A) ASME B16.47(B) ASME B16.48




1/2″-24″ 26″-72″




Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint, Zinc Galvanized,Flame Plating



Producing process

Billet-cutting-forging-heating-lathe-drilling-inspection-marking-packing-export-din flange


Plywood cases or pallet ,or as customers’ requirement


Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc


ANSI Flange accept Factory in-house or third party inspection


Forged and casting

Payment item


Stainless Steel 303 Flanges Chemical Composition











Stainless Steel 303

0.15 max

2 max

1 max

0.20 max

0.15 min


8 – 10

Material 303 Stainless Steel, Stainless Steel type 303 Flanges Manufacturer And Supplier In Dubai UAE.​

Stainless Steel 303 Flanges Mechanical Properties









Stainless Steel 303



SUS 303

Top Stainless Steel 303 Flanges Manufacturing Company in Dubai

At PipingMart, we take pride in being the largest supplier and manufacturer in the UAE, offering cutting-edge solutions for all your piping needs. With state-of-the-art production plants strategically located in the UAE, we boast a vast inventory of over 25,000 tons of premium-quality materials readily available in stock.

Contact us to get a quick quote for your requirement.

We offer These Stainless Steel 303 Flanges as per DIN, ISO, JIS or ANSI Standard.

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Advantages of Stainless Steel 303 Flanges

  • Corrosion resistance: Stainless steel 303 contains chromium and nickel for high corrosion resistance, making it suitable for use in a variety of wet, chemical and salt environments

  • Heat Resistance: Stainless steel 303 exhibits excellent resistance to high-temperature impact and oxidation, making it suitable for applications where flanges may be hot

  • High Strength: Although not as high as some other stainless steels such as 304 or 316, Stainless Steel 303 still provides enough strength for many applications, where it is needed flanges withstand moderate to heavy stresses or loads

  • Excellent weldability: Stainless steel 303 provides excellent weldability, making it easier to form flanges by the welding process without significant risk of cracking or distortion

  • Machining: One of the main advantages of 303 stainless steel is its exceptional machinability. This grade is designed for easy machining, making it cost-effective and efficient for flange manufacturing with complex designs or tight tolerances.

Types of Stainless Steel 303 Flanges

Stainless Steel 303 Flanges
Stainless Steel 303 wnr 1.4305 Flanges
Stainless Steel 303 BS 4504 Flanges
Threaded Flanges
Stainless Steel 303 Forged Flanges
Stainless Steel UNS S30300 Flanges
Stainless Steel 303 Slip on Flanges

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Stainless Steel 303 Flanges Uses

Application Industry

Stainless Steel 303 Flanges have excellent mechanical qualities and are resistant to wear corrosion, and high temperatures, they are widely used in various industries. These flanges are widely used in the oil and gas, petrochemical, power generation, and aerospace industries. They play an important part in joining equipment, valves, and pipe systems. They are perfect for applications exposed to severe operating conditions, such as high temperatures, high pressures, and corrosive environments, because of their exceptional strength, toughness, and wear resistance.

Oil & Gas Industry

Aerospace Industry

Petro Chemical Industry

Power Generation Industry

  • Piping systems: Stainless steel 303 flanges connect pipes, valves, pumps, and other components in piping systems. They provide a safe, leak-proof connection, especially in high-pressure or corrosive environments.

  • Aerospace: Stainless steel 303 flanges are used in aerospace engineering, especially in applications where high strength, corrosion resistance, and lightweight materials are required. They are used in aircraft fuel systems, hydraulic systems, and building materials.

  • Oil and Gas: In the oil and gas industry, stainless steel 303 flanges are used in pipelines, offshore platforms, and refineries in hot environments and high temperatures. Their durability and corrosion resistance make them suitable for such demanding applications.

  • Food and Beverage Industry: Stainless steel is commonly used in the food and beverage industry due to its ability to resist corrosion and maintain hygiene standards. Flanges made of this material are used in processing equipment, pipes and tanks.

  • Chemical Applications: Stainless steel 303 flanges are preferred in applications such as chemical processing where corrosion resistance is required. They can withstand exposure to aggressive chemicals, such as acids and alkalis, without degradation or degradation.

How to Choose the Right Stainless Steel 303 Flanges

  • Rationale for Stainless Steel 303: Stainless steel 303 is a free-machined form of basic 18-8 grade 304, with added sulfur or selenium for better mechanical properties. It provides excellent corrosion resistance and is easy to assemble and weld together.

  • Consider machinability: One of the main advantages of stainless steel 303 is its improved machinability due to the addition of sulfur or selenium. If your application involves heavy-duty machining, the 303 flange may be appropriate.

  • Check mechanical properties: Stainless steel 303 is suitable for many applications. However, if your application requires more complexity, you may need to choose a different grade with improved mechanical properties.

  • Check for corrosion resistance: Stainless steel 303 provides excellent corrosion resistance in rough environments. However, if your project involves harsh chemicals or high levels of corrosion, you may want to consider other highly corrosion-resistant stainless steels, such as 304 or 316

  • Know Application Requirements: Identify the specific application for which you need the flange. Consider factors such as temperature, pressure, chemicals, and environment. Different applications may require different grade specifications for stainless steel flanges.

Are Stainless Steel 303 Flanges weldable?

Yes, stainless steel 303 flanges are weldable. However, they are not recommended for welding due to the presence of sulfur or selenium, which can lead to hot cracking during welding. Post-weld annealing or selecting an alternative stainless steel grade with better weldability is advised for welding applications.

Werkstoff No 1.4305 SS Socket Weld Flanges In Dubai UAE, 303 SS Lapped joint Flanges, SS ASTM A182 F303 Threaded Flanges, ANSI B16.5, ANSI B16.47 Exporter In Dubai UAE

FAQ (Frequently Asked Questions)

What maintenance is required for Stainless Steel 303 Flanges?

Stainless steel 303 flanges generally require minimal maintenance due to their corrosion resistance. Regular inspection for signs of corrosion or damage is recommended. Cleaning with mild detergent and water, followed by drying, helps maintain appearance. Lubrication may be needed for moving parts to prevent galling.

Are Stainless Steel 303 Flanges environmentally friendly?

Stainless steel 303 flanges are considered environmentally friendly due to their high recyclability, durability, and resistance to corrosion, which reduces the need for frequent replacements. However, the production process involves energy consumption and emissions, albeit lower compared to some other materials, making them relatively eco-friendly choices.

What is the maximum temperature at which Stainless Steel 303 Flanges can operate?

Stainless steel 303 flanges have a maximum operating temperature of around 760°C (1400°F) in intermittent service and approximately 870°C (1600°F) in continuous service. Beyond these temperatures, the material may experience significant degradation in mechanical properties, corrosion resistance, and overall performance.

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