Alloy Steel Long Weld Neck Flanges are specially crafted for high-pressure and high-temperature situations where you need that extra bit of strength and stability. With their extended neck design, these flanges create a smooth connection between the flange and the pipe, which helps to minimize stress points and ensures optimal flow. Made from top-notch alloy steel grades, they boast impressive toughness, resistance to corrosion, and precise dimensions. You’ll find Alloy Steel Long Weld Neck Flanges in various applications, including oil and gas pipelines, petrochemical plants, power generation systems, and chemical processing industries, where they provide reliable, leak-proof connections in critical situations.
Typically, these flanges are produced from grades like ASTM A182 F5, F9, F11, or F22, which include elements like chromium, molybdenum, carbon, manganese, and silicon to boost their mechanical performance. These materials deliver excellent tensile and yield strength, high hardness, and outstanding resistance to thermal stress, wear, and corrosion. Their mechanical properties also include good impact resistance, creep and fatigue strength, and stability when facing fluctuating pressures and temperatures. The combination of the extended neck design and the durability of alloy steel guarantees safe and long-lasting service in demanding pipeline systems.
| Specification | ASTM A182 / ASME SA182 |
|---|---|
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| 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 |
| Pressure Rating ANSI | Class 150 LBS, 300 LBS, K12822 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| 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 |
| Production Technique | Forged, Heat treated and machined |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint 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 |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. 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 A182 Alloy Steel F22 Alloy Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Alloy Steel F1, F91, F22, F11, F5, F9 |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Abulaila Flanges, a premier supplier in Amman, Jordan, specializes in high-quality Alloy Steel Long Weld Neck Flanges, valued for their exceptional durability, corrosion resistance, precise engineering, and suitability across diverse industrial applications.
You’ll often see Alloy Steel Long Weld Neck Flanges in high-pressure oil and gas pipelines, refinery systems, chemical processing units, and power generation facilities. They’re perfect for situations involving high-temperature steam, corrosive fluids, or critical flow lines that need to minimize turbulence and stress. These flanges ensure robust, leak-proof connections while lowering the risk of pipeline failures, which supports safe and efficient operations. Their durability, mechanical strength, and compatibility with welded piping make them vital components in challenging industrial settings.
Yes, we offer custom sizes for Alloy Steel Long Weld Neck Flanges to meet specific project needs. Our team at Abulaila Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@abulailaflanges.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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