Sankalp Alloys Overseas
grant road, Mumbai, Maharashtra
GST No. 27IQEPS9463K1ZU
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Product Details:
| Minimum Order Quantity | 50 Piece |
| Size | 5 inch |
| Material Standard | ANSI B16.5 |
| Surface Finish | Polished |
| Country of Origin | Made in India |
| Flange Type | Welding Neck Flange |
| Grade | 32750 |
| Material | Duplex Steel |
| Usage | Pipe Fitting |
We are engaged in offering 32750 Duplex Steel Flanges to our clients. Our range of all products is widely appreciated by our clients.
Other Details:
Product Details:
| Minimum Order Quantity | 50 Piece |
| Size | 5 inch |
| Material Standard | ANSI B16.5 |
| Type | Socket Weld Flange |
| Shape | Round |
| Surface Finish | Polished |
| Country of Origin | Made in India |
| Material | Duplex Steel |
| Grade | Zeron 100 |
| Usage | Pipe Fitting |
Other Details:
Product Details:
| Material Grade | Duplex 31803 |
| Flange Type | Slip On |
| Pressure Rating | PN25 |
| Size | 1.5 in |
| Face Type | Raised Face |
| Standard | ASME B16.47 |
| Finish | Pickled Passivated |
A Duplex Blind Flange (BLRF/BLFF) is a solid, forged flange made from duplex stainless steel used to close the end of a piping system, valve, or pressure vessel opening. It is designed to withstand high pressure and corrosive environments.
🔹 What Is Duplex Stainless Steel?Duplex Stainless Steel has a dual microstructure of austenite and ferrite, providing:
Nearly double the strength of 304/316 stainless steel
Excellent resistance to chloride stress corrosion cracking
Strong protection against pitting and crevice corrosion
Good weldability and structural durability
Common Grades:
UNS S32205 (Duplex 2205) – Standard duplex
UNS S32750 (Super Duplex 2507) – Higher corrosion resistance
Solid design with no bore (no center hole)
Suitable for high-pressure applications
Excellent performance in marine and chloride environments
High mechanical strength
Provides secure and leak-proof closure
ASTM A182 / ASME SA182 – Forged duplex flanges
ASME B16.5 – Pipe flanges (up to 24″)
ASME B16.47 – Large diameter flanges
NACE MR0175 / ISO 15156 – For sour service (oil & gas)
Class 150
Class 300
Class 600
Class 900
Class 1500
Class 2500
RF (Raised Face)
FF (Flat Face)
RTJ (Ring Type Joint)
Oil & gas pipelines
Offshore platforms
Chemical processing plants
Desalination and seawater systems
Pressure vessel closures and testing lines
Withstands high pressure and temperature
Excellent corrosion resistance in chloride-rich environments
Long service life with minimal maintenance
Ideal for system isolation and pressure testing
If you want, I can create a comparison chart of Duplex Blind vs Carbon Steel Blind vs Stai