Stainless Steel 321h Flanges
Minimum Order : 100 Items
Customization as per requirements
Stainless Steel 321h Flanges – Specification
| Flanges Types | Slip On, Companion, Weld Neck, Lap Joint, Long Weld Neck, Threaded, Blind |
|---|---|
| Class | 300 Lbs, 150 Lbs, 2500 Lbs Asa 150, 160, 100, Asa 300, 600 Lbs, Pn 6, 900 Lbs, 10, 16, 1500 Lbs, 25, 40, 64 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Small Male Female (smf), Lap Joint Face (ljf), Groove, Large Male Female (lmf), Flat Face (ff), Ring Type Joint (rtj), Large Tongue & Groove, Small Tongue |
Stainless Steel 321H Flanges Manufacturer
Type of Sub-products

Astm A182 Ss 321h Slip On Flange Astm A182 Ss 321h Slip On Flange
The ASTM A182 SS 321H Slip On Flange is a high performance fitting designed for seamless integration in piping systems operating under high temperature and high pressure conditions. Made from high carbon stainless steel grade 321H, it offers excellent corrosion resistance, thermal stability, and superior mechanical strength. The slip on design allows for easy installation by sliding the flange over the pipe and welding it in place, making it ideal for applications requiring robust and reliable connections.

Astm A182 Ss 321h Weld Neck Flange Astm A182 Ss 321h Weld Neck Flange
The ASTM A182 SS 321H Weld Neck Flange is a high strength, precision engineered fitting designed for critical applications in high temperature and high pressure environments. Manufactured from grade 321H stainless steel, it provides enhanced corrosion resistance, thermal stability, and exceptional mechanical strength due to its high carbon content. The weld neck design ensures a secure and leak proof connection, making it ideal for applications where structural integrity is crucial.

Astm A182 Ss 321h Blind Flange Astm A182 Ss 321h Blind Flange
The ASTM A182 SS 321H Blind Flange is a robust and versatile fitting designed to seal the ends of piping systems or pressure vessel openings. Made from high carbon stainless steel grade 321H, it offers excellent resistance to corrosion, oxidation, and high temperature environments. Its solid, disk like structure ensures a secure closure, preventing leaks and maintaining system integrity under high pressure. Ideal for use in industries like petrochemicals, power generation, and chemical processing, this blind flange provides durability, reliability, and superior performance in demanding applications.
Frequently Asked Questions
What are the uses of stainless steel 321H flanges?
The SS 321H flanges, made of 321H stainless steel, are commonly employed in high-temperature scenarios where strength and resistance to corrosion are crucial. These flanges find utility in various industrial settings, including pipe connectors, flange adapters, valves, pressure seals, and more. With its exceptional corrosion resistance, the SS 321H flanges demonstrate reliable performance even in harsh conditions, making them suitable for applications like petrochemical plants or saltwater environments. Moreover, their remarkable strength makes them ideal for fabricating industrial tools such as drills and lathes.
What are the available 321H stainless steel flange dimensions in the market?
Flanges made of Stainless Steel 321H are offered in various sizes and measurements to suit different application requirements. The sizes commonly range from 1/2" to 48". Pressure ratings can reach up to 2500 psi, while temperature ratings can go up to 1200°F (649°C). Borehole lengths typically fall between 2.5" and 4.25". The choice of flange connection type determines the available materials. Threaded and socket welded flanges are usually made of Stainless Steel 321H, whereas weld neck, slip-on, and lap joint flanges are manufactured using alloys such as Alloy 825 or Alloy 20.
What are the critical properties of Stainless Steel 321H flanges?
Flanges made of Stainless Steel 321H can withstand high temperatures, resist corrosion effectively, and be easily welded and shaped. Moreover, they exhibit exceptional strength when exposed to elevated temperatures.
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Countries We Export – Stainless Steel 321h Flanges
- India
Cities We Supply – Stainless Steel 321h Flanges
- Ahmadpur
- Ahmadnagar
- Ahmedabad
- Bangalore Urban
- Bangalore Rural
- Bengaluru
- Coimbatore
- Chennai
- Chandigarh
- Haridwar
- Hyderabad
- Jaipur
- Jodhpur
- Jodhpur (ahmedabad)
- Kalyan
- Kolhapur
- Mumbai
- Mumbai Suburban
- Murud (raigad)
- Nagpur
- Lucknow
- New Delhi
- Navi Mumbai
- Kolkata
- Nashik
- Pune
- Raipur
- Rajkot
- Rampura
- Sion, Mumbai
- Surat
- Thane
- Varanasi
- Visakhapatnam
- Moradabad
- Angul
- Rudrapur
- Hosdurg
- Gandhinagar
- Rajahmundry
- Durgapur
- Bharuch
- Panipat
Industries We Serve – Stainless Steel 321h Flanges
Sugar
Oil And Gas Industries
Paper Mill
Power Plant
Bridge And Building
Aerospace Industries
Automobile Industry
Electrical Industry
Defense Industry
Construction & Fabrications
Ring Man Units
Railways

Gasket Industry
Pharmaceuticals Industry
