Shrikant Steel Centre is a premier Screwed / Threaded Flanges Supplier in Dubai. We deliver precision-engineered, high-performance threaded flanges designed with tapered internal threads that fit smoothly onto external pipe threads without requiring post-fabrication welding. Designed for low-pressure, atmospheric, and highly sensitive or volatile operational piping systems, our screwed flanges serve top-tier public and private sector projects across petroleum, gas, chemical processing, and municipal utilities.
As a leading Screwed / Threaded Flanges Supplier in Dubai, Shrikant Steel Centre stocks and supplies a comprehensive range of screwed flanges. Our components undergo strict quality checks, including Positive Material Identification (PMI), thread gauge testing, hydrostatic pressure testing, and ultrasonic inspection to guarantee zero leakage and extreme structural integrity.
Our approved inventory includes Stainless Steel Screwed/Threaded Flanges, Carbon Steel Screwed/Threaded Flanges, and Duplex Steel Screwed/Threaded Flanges available in various pressure ratings, schedules, and material grades.
| Product Name | Screwed / Threaded Flanges |
|---|---|
| Available Types | Stainless Steel, Carbon Steel, Duplex Steel, Super Duplex, and Alloy Steel Screwed / Threaded Flanges |
| Applicable Standards | ASME / ANSI B16.5, ASME B16.47 Series A & B, EN 1092-1, DIN, BS 4504, MSS-SP-44 |
| Pressure Rating | Class 150 LBS, 300 LBS, 400 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS / PN6 to PN400 |
| Nominal Size Range | 1/2" NB to 24" NB (15 NB to 600 NB) |
| Thread Specifications | NPT (ANSI/ASME B1.20.1), BSPT (ISO 7-1), BSPP (ISO 228-1) |
| Flange Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Certification & Inspection | EN 10204 3.1 MTC, PMI Inspection Certificate, NACE MR0175 / ISO 15156 |
| Screwed / Threaded Flanges Material Grades | |
| Stainless Steel | ASTM A182 F304, F304L, F316, F316L, F310S, F317L, F321, F347 |
| Carbon Steel | ASTM A105, ASTM A350 LF2 (Low Temperature Carbon Steel), ASTM A694 F42, F52, F60, F65 |
| Alloy Steel | ASTM A182 F1, F5, F9, F11, F12, F22, F91 |
| Duplex / Super Duplex | ASTM A182 F51 / UNS S31803, F53 / UNS S32750, F55 / UNS S32760 |
| Nickel Alloys | Inconel 600/625, Monel 400, Hastelloy C276, Alloy 20 |
Strict chemical composition monitoring is essential to ensure quality and compliance. The precise balance of elements guarantees required mechanical strength, oxidation stability, and resistance against pitting and stress corrosion cracking in aggressive operating environments.
| Screwed / Threaded Flanges Chemical Composition (%) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo |
| ASTM A105 | 0.35 max | 0.60-1.05 | 0.035 max | 0.040 max | 0.10-0.35 | 0.30 max | 0.40 max | 0.12 max |
| F304 | 0.08 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 18.00-20.00 | 8.00-11.00 | - |
| F304L | 0.030 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 18.00-20.00 | 8.00-13.00 | - |
| F316 | 0.08 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 |
| F316L | 0.030 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 16.00-18.00 | 10.00-15.00 | 2.00-3.00 |
Every screwed / threaded flange undergoes rigorous non-destructive and dimensional testing to verify thread accuracy and mechanical performance. The table below highlights minimum standard mechanical requirements across key forging grades:
| Screwed / Threaded Flanges Mechanical Properties | |||||
|---|---|---|---|---|---|
| Grade | UNS / Spec | Tensile Strength (MPa), min | Yield Strength (MPa), min | Elongation (%), min | Hardness (HB), max |
| ASTM A105 | K03504 | 485 | 250 | 22 | 187 HB max |
| A350 LF2 | K11572 | 485 - 655 | 250 | 22 | 197 HB max |
| F304 | S30400 | 515 | 205 | 30 | 187 HB max |
| F316 | S31600 | 515 | 205 | 30 | 187 HB max |
| F51 (Duplex) | S31803 | 620 | 450 | 25 | 290 HB max |
Screwed and threaded flanges follow dimensional tolerances governed by ASME B16.5 specifications. The table below presents standard reference dimensions for Class 150 Raised Face (RF) screwed flanges:
| ASME B16.5 Class 150 Screwed / Threaded Flange Dimensions | |||||
|---|---|---|---|---|---|
| NPS | DN | Flange Outside Diameter (mm) | Flange Thickness (mm) | Bolt Circle Diameter (mm) | Number of Bolts |
| 1/2" | 15 | 88.9 | 11.2 | 60.3 | 4 |
| 3/4" | 20 | 98.6 | 12.7 | 69.8 | 4 |
| 1" | 25 | 108.0 | 14.2 | 79.4 | 4 |
| 1 1/2" | 40 | 127.0 | 17.5 | 98.4 | 4 |
| 2" | 50 | 152.4 | 19.0 | 120.6 | 4 |
| 3" | 80 | 190.5 | 23.9 | 152.4 | 4 |
| 4" | 100 | 228.6 | 23.9 | 190.5 | 8 |
| 6" | 150 | 279.4 | 25.4 | 241.3 | 8 |
| 8" | 200 | 342.9 | 28.4 | 298.4 | 8 |
| 10" | 250 | 406.4 | 30.2 | 361.9 | 12 |
Leading Screwed / Threaded Flanges Supplier in Dubai, offering certified piping solutions worldwide.
Shrikant Steel Centre supplies screwed / threaded flanges across all major industrial belts and project sites in Dubai with complete documentation and fast logistics management.
| City We Supply | |||||
|---|---|---|---|---|---|
| Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
| New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
| Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
| Bhubaneswar | Vijaywada | Firozabad | Pithampur | Rajkot | Bharuch |
| Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
| Peenya | Hosdurg | Channapatna | Kharagpur | Nashik | Bareilly |
We export certified screwed / threaded flanges globally to clients in the Middle East, Europe, Asia, and North America. Contact our sales team to discuss project-specific requirements and export logistics.
| Countries We Supply | ||||
|---|---|---|---|---|
| Saudi Arabia | Oman | Kuwait | Netherlands | Iran |
| Bahrain | Qatar | UAE | Africa | China |
| Nigeria | Mexico | Canada | Venezuela | United Kingdom |
| United States | South Africa | Malaysia | Bangladesh | Turkey |
| Singapore | Sri Lanka | Australia | Brazil | Germany |
| France | Italy | South Korea | Poland | Belgium |
