Khawla Flanges is a well-respected manufacturer and supplier of Select Hastelloy Weldneck Flanges, proudly based in Muscat, Oman. They specialize in providing high-performance solutions for industries that operate in harsh and corrosive environments. With a reputation for precision engineering and a commitment to international standards, the company offers durable and reliable weldneck flanges that can handle severe chemical exposure, high pressure, and extreme temperatures. Catering to vital sectors like chemical processing, petrochemical, oil and gas, power generation, and marine industries, Khawla Flanges ensures their products deliver long-lasting service, exceptional integrity, and dependable performance for critical piping systems throughout Oman and the GCC.
Select Hastelloy Weldneck Flanges are generally crafted from high-quality nickel-based alloys, including Hastelloy C276, C22, or B2. These alloys are formulated with specific amounts of nickel, chromium, molybdenum, tungsten, and iron, which provide outstanding resistance to both oxidizing and reducing environments. In terms of mechanical properties, Hastelloy flanges boast impressive tensile and yield strength, remarkable toughness, and excellent thermal stability. They maintain their integrity even under extreme temperatures and aggressive chemicals, such as chlorides and acids. The weldneck design promotes smooth stress distribution, ensuring strong, leak-proof connections in demanding piping applications that require high pressure and temperature resilience.
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| Hastelloy Weld Neck Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Hastelloy Alloy WNRF Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| ASTM B564 Hastelloy Weld Neck Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| ASME SB 564 Weld Neck Flange | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| ASME SB564 Hastelloy Weld Neck Flange UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| B564 Weld Neck Flange EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| ASME SB564M Hastelloy Alloy Weld Neck Flange Production technique | Forged, Heat treated and machined |
| B564 Weld Neck Flange Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Welding Neck Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| ASME B564 Weld Neck Flange Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| ASTM B564 Hastelloy Alloy Weld Neck Flange Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Hastelloy Alloy Weld Neck Flange Origin | Indian / West Europe / Japan / USA / Korean |
| Manufacturer of Hastelloy Weld Neck Flange | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. ASTM B564 Weld Neck Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM B564 C276 Hastelloy Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| ASME SB564M Hastelloy Weld Neck Flange Uses & application | Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
Khawla Flanges, a leading supplier in Muscat, OMAN, offers an extensive selection of Hastelloy Weldneck Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
Select Hastelloy Weldneck Flanges find extensive use in industries where corrosion resistance and structural reliability are crucial. They are particularly suited for chemical and petrochemical processing plants, offshore and onshore oil and gas systems, pharmaceutical manufacturing, pollution control equipment, and power generation facilities. These flanges excel in environments that involve strong acids, seawater, chlorides, and high-temperature chemicals. Their sturdy weldneck design ensures they can handle the rigors of demanding applications with ease.
| ASME/ANSI B 16.5 | Weld Neck Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Weld Neck Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| BS 4504 SEC 3.1 | Hubbed Weld Neck Flange |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Hubbed Weld Neck Hubbed Threaded, |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Hubbed Weld Neck Hubbed Threaded |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Weld Neck Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN | OR |
| Hastelloy C276 | 2.4819 | N10276 | NW 0276 | ХН65МВУ | NiMo16Cr15W | ЭП760 |
| Hastelloy C22 | 2.4602 | N06022 | NW 6022 | – | NiCr21Mo14W | – |
| Hastelloy B2 | 2.4617 | N10665 | – | – | – | – |
Yes, we offer custom sizes for Hastelloy Weldneck Flanges to meet specific project needs. Our team at Khawla Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@khawlaflanges.com.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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