ASME B16.5 Industrial Flanges: Dimensions | Specifications | Material Grade | Standards | About Industrial Flange | All Product Types
Nutech Overseas is a trusted supplier and exporter of industrial flanges in Kuwait, delivering high-quality piping solutions for oil & gas, refinery, and infrastructure projects. Our flanges are manufactured to international standards including ASME B16.5, ASME B16.47, EN, and DIN, ensuring high performance and reliability in demanding industrial conditions.
Industrial flanges are essential components used in piping systems to connect pipes, valves, and equipment securely. They provide leak-proof joints capable of withstanding high pressure and temperature conditions. In Kuwait’s oil and energy sector, flanges are critical for safe and efficient operations.
We offer Slip-On, Weld Neck, Blind, Socket Weld, Threaded, RTJ, Lap Joint, and Spectacle Blind Flanges. These flanges are suitable for various applications, from low-pressure pipelines to high-pressure refinery systems.
In Kuwait, flanges are widely used in oil fields, refineries, pipeline networks, and EPC projects. Their strength and durability make them suitable for harsh environments and critical applications.
Our flanges are available in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, and Nickel alloys, ensuring long service life and corrosion resistance.
Manufactured according to ASME, ANSI, EN, DIN, and ISO standards.
We export industrial flanges to Kuwait with complete documentation, ensuring smooth project execution and compliance.
The harsh, arid, and dusty environment of Kuwait, combined with extreme summer temperatures, demands exceptionally robust piping components. Our industrial flanges are manufactured with this in mind, utilizing high-grade carbon steel (like ASTM A105N) with normalized heat treatment to ensure excellent notch toughness and resistance to thermal fatigue caused by day-night temperature swings in exposed pipeline networks.
As Kuwait continues to upgrade and expand its refining capacity (such as the Clean Fuels Project and Al-Zour Refinery), the demand for high-performance industrial flanges increases. We supply heavy-duty weld neck and blind flanges in high pressure classes (Class 900, 1500, and 2500) designed specifically to handle the aggressive, high-temperature fluids and high-pressure hydrogen environments found in modern hydrocracking units.
To combat corrosion during transit, storage, and operation in Kuwait, we offer a range of protective coatings. From standard yellow transparent anti-rust varnish to hot-dip galvanizing and sophisticated FBE (Fusion Bonded Epoxy) coatings, we ensure our flanges arrive in pristine condition and offer prolonged service life even in challenging above-ground or buried pipeline applications.
Our team provides dedicated technical support to our clients in Kuwait. Whether it's assisting engineers in selecting the correct flange facing (Raised Face vs. Flat Face) for a specific valve integration, or providing guidance on bolting materials (such as ASTM A193 B7/B16 bolts) to ensure joint integrity under thermal cycling, we are a comprehensive solutions provider, not just a manufacturer.
For complete technical details, including dimensions, pressure rating classes, weight charts, sizes, tolerances, and material specifications of our ANSI B16.5 Industrial Flanges, please download the full Catalog PDF below.
| Specification | Details |
|---|---|
| Type | Slip-On Flange (SO), Raised Face (SORF), Flat Face (SOFF), RTJ (Ring Type Joint) |
| Design Standard | ASME B16.5, ANSI B16.5, ASME B16.47 Series A & B, MSS-SP-44, BS 4504, EN 1092-1, DIN |
| Size Range | ½″ NB to 48″ NB (DN15 to DN1200) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 (PN6 to PN400 in EN standard) |
| Face Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Flange Thickness | As per ASME B16.5 / B16.47 or EN 1092-1 dimensional standards and pressure class |
| Bore & Hub Design | Slip-on design with pipe inserted before welding; beveled or smooth bore as per requirement |
| Welding Type | Fillet weld on both inner and outer side of pipe-to-flange connection |
| Surface Finish | Stock finish (3.2–6.3 μm), Smooth finish, Serrated concentric or spiral finish as per RF/FF |
| Gasket Compatibility | Spiral wound, Ring gaskets, Full face or raised face gaskets based on flange type |
| Drilling Template | Conforms to ANSI B16.5 or other applicable flange drilling standards |
| Coating / Protection | Rust preventive oil, Black paint, Yellow transparent varnish, Hot-dip galvanized (on request) |
| Dimensional Tolerances | As per ASME B16.5, EN 1092-1, MSS-SP-44 or client drawing/specifications |
| Testing & Inspection | Dimensional check, Hydrostatic test, PMI, Visual inspection, NDT (UT/MPI as required) |
| Certification | EN 10204 Type 3.1 / 3.2, IBR Approval, ISO 9001, PED 2014/68/EU, NACE MR0175 / ISO 15156, ISO 9001 |
| Application Industries | Oil & Gas, Petrochemical, Power Generation, Water Treatment, Pulp & Paper, Shipbuilding, HVAC, Offshore |
| Origin | Made in India (by Nutech Overseas) |
| Export Network | USA, Europe, and Middle East |
| Material Category | Slip-On Flange Grades |
|---|---|
| Stainless Steel Slip-On Flange | ASTM A182 F304 / F304L / F304H, F316 / F316L / F316Ti, F310, F309S, F317 / F317L, F321 / F321H, F347 / F347H, F904L, ASTM A351 CF3 / CF3M / CF8 / CF8M / CF8C, DIN 1.4301, 1.4306, 1.4307, 1.4311, 1.4401, 1.4404, 1.4408, 1.4409, 1.4541, 1.4571, 1.4550, 1.4435, 1.4539 |
| Duplex Steel Slip-On Flange | ASTM A182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61, UNS S31803 / S32205 |
| Super Duplex Steel Slip-On Flange | ASTM A182 F53 / F55 / F57 / F59 / F60 / F61, UNS S32750 / S32760 |
| Carbon Steel Slip-On Flange | ASTM A105 / A105N, ASTM A350 LF2, ASTM A694 F52 / F56 / F60 / F65 / F70 / F80, ASTM A216 WCB, DIN 1.0460 / 1.0402 / 1.0619, Die Steel, Mild Steel |
| Alloy Steel Slip-On Flange | ASTM A182 F5 / F9 / F11 / F12 / F22 / F91, AISI 4130 / 4140 |
| Nickel Alloy Slip-On Flange | Nickel 200 / 201, ASTM B564 |
| Monel Slip-On Flange | Monel 400 (UNS N04400), Monel K500 (UNS N05500), ASTM B564 |
| Inconel Slip-On Flange | Inconel 600 / 601 / 625 / 690 / 718 / 783 / X750, ASTM B564 |
| Incoloy Slip-On Flange | Incoloy 800 / 800H / 800HT (UNS N08800), Incoloy 825 (UNS N08825), Incoloy 925, ASTM B564 |
| Hastelloy Slip-On Flange | Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X, ASTM B564 |
| Alloy 20 Slip-On Flange | Alloy 20 / 20Cb-3, Carpenter® 20, ASTM B462 |
| 254 SMO Slip-On Flange | SMO 254 / 6Mo, UNS S31254, DIN 1.4547, ASTM A182 |
| Copper Nickel Slip-On Flange | Copper Nickel 90/10 (C70600), 70/30 (C71500), UNS C71640, ASTM B61 / B62 / B151 / B152 |
| Copper Slip-On Flange | TP1, TP2, T1, T2, C10100–C12300, C14200–C17200, C21000–C71520, including C10930, C11000, C11400, C12000, C12200, C26000, C28000, C33000, C44300, C70600, etc. |
| Brass Slip-On Flange | Grades 3602, 2604, H59, H62, etc. |
| Aluminium Slip-On Flange | Aluminium Grades 5052, 6061, 6063, 2017, 7075, etc. |
| Titanium Slip-On Flange | ASTM B381 Gr.1 / Gr.2 / Gr.4 / Gr.5 / Gr.7, UNS R50250 / R50400 / R50550 / R50700 / R52400 / R53400 / R56320 / R56400 |
| Other Special Grades | Al6XN, Tin Bronze, Aluminium Bronze, Lead Bronze, Nimonic 75 / 80A / 90 |
Industrial flanges are used to connect piping systems securely in industrial applications.
We supply industrial flanges in Kuwait with full documentation and fast delivery.