| Flanges Types | Slip On, Weld Neck, Companion, Lap Joint, Long Weld Neck, Threaded, Blind |
|---|---|
| Class | 150 Lbs, 2500 Lbs Asa 150, 100, 160, 300 Lbs, 600 Lbs, Asa 300, 900 Lbs, Pn 6, 10, 1500 Lbs, 16, 25, 40, 64 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Lap Joint Face (ljf), Groove, Small Male Female (smf), Flat Face (ff), Large Male Female (lmf), Ring Type Joint (rtj), Small Tongue, Large Tongue & Groove |
Stainless Steel 431 Flanges Size Range Pressure Rating and Machining Finish Details
Metalica Forging Inc which provides application specific alloy flange solutions in subject specific industrial application, is an expected Stainless Steel 431 Flanges Manufacturer that offers products of strength, wear resistance, and reliable service life. The SS 431 flanges are used in valves, pumps, and pressure systems in oil and gas, power generation, and heavy engineering industries as they have high tensile strength, reasonable corrosion resistance, and can withstand mechanical stress. Also Stainless Steel 304N Flanges are popular in the process piping and structural assemblies of applications that demand a higher level of corrosion resistance and weldability.
These flanges are designed to be dimensionally stable and have the ability to be sealed in both the varying temperature and pressure environments. Their solid metallurgical design enables them to be used in harsh industries over a long period of time without maintenance. Stainless Steel 310H Flanges are mostly used in conditions with high temperatures, like furnaces, heat exchangers and thermal processing units, as they have the best resistance to oxidation and the ability to maintain its strength even at high temperatures. These material options, when combined, will help in ensuring a good joint performance and operational safety within the vast industrial applications.
Stainless Steel 431 Flanges – Technical & Grade Specification Table
| Material | Grade | Standard | Pressure Class | Size Range | Facing Type | Temperature Range | Typical Use |
|---|---|---|---|---|---|---|---|
| Stainless Steel | 431 | ASME B16.5 / ASTM A182 | Class 150–600 | ½″ – 24″ | RF / FF | –50°C to 600°C | High-strength, corrosion-resistant piping |
| Stainless Steel | 431 | ASTM A182 | Class 150–900 | ½″ – 24″ | RF | –50°C to 600°C | Chemical & petrochemical pipelines |
| Stainless Steel | 431 | EN 1092-1 | PN10–PN40 | DN15 – DN600 | FF / RF | –50°C to 600°C | Pressure vessels & heat exchangers |
| Stainless Steel | 431 | ASTM A182 F431 | Class 150–600 | ½″ – 24″ | RF / FF | –50°C to 600°C | Marine & industrial fluid systems |
- Applications: They are used in high-pressure piping, valves, and heat exchangers in such industries as oil and gas, chemical processing, and power generation because of their excellent mechanical characteristic.
- Material Quality: These flanges are made of corrosion resistant SS 431 which provides good strength, hardness and thermal stability, guaranteeing durability in adverse conditions.
- Grade & Standards: It is manufactured in compliance with the international standards of engineering and safety in accordance with ASTM A182 and ASME B16.5 standards.
- Other Features: Have the ability to resist high temperatures to 870°C which makes them fit in the moderate operating settings in addition to the extreme ones with steady performance in Indoors and outdoors installations.
Client Project Report of Stainless Steel 431 Flanges
| Product Supplied | Quantity | Cities (India) |
|---|---|---|
| Stainless Steel 431 Flanges for Oil & Gas Piping | 167 Pieces | Mumbai |
| Stainless Steel 431 Flanges for Petrochemical Plants | 203 Pieces | Ahmedabad |
| Stainless Steel 431 Flanges for Power Equipment | 189 Pieces | Chennai |
| Stainless Steel 431 Flanges for Water Treatment Systems | 175 Pieces | Pune |
Type of Sub-products

Stainless Steel 431 Slip On Flanges Stainless Steel 431 Slip On Flanges
Stainless Steel 431 Slip On Flanges are versatile and robust components designed for secure and reliable piping connections in demanding environments. Made from grade 431 martensitic stainless steel, these flanges offer exceptional strength, wear resistance, and moderate corrosion resistance, making them ideal for applications in marine, aerospace, and chemical processing industries.

Stainless Steel 431 Weld Neck Flanges Stainless Steel 431 Weld Neck Flanges
Stainless Steel 431 Weld Neck Flanges are high performance components designed for critical piping systems requiring durability and reliability under high pressure and temperature conditions. Manufactured from 431 grade martensitic stainless steel, these flanges offer excellent mechanical strength, wear resistance, and moderate corrosion resistance, making them ideal for demanding applications in marine, aerospace, and chemical processing industries.

Stainless Steel 431 Weld Neck Flanges Stainless Steel 431 Weld Neck Flanges
Stainless Steel 431 Weld Neck Flanges are high performance components designed for critical piping systems requiring durability and reliability under high pressure and temperature conditions. Manufactured from 431 grade martensitic stainless steel, these flanges offer excellent mechanical strength, wear resistance, and moderate corrosion resistance, making them ideal for demanding applications in marine, aerospace, and chemical processing industries.
