Khaleed Stainless is a well-respected manufacturer and supplier based in Riyadh, Saudi Arabia, specializing in top-quality Stainless Steel Weld Neck Flanges. These flanges are expertly crafted for high-pressure and high-temperature piping applications. With a long tapered hub design, they effectively distribute stress to the pipe, minimizing the chances of leaks and boosting durability. Made from premium stainless steel, they resist corrosion, oxidation, and wear exceptionally well. At Khaleed Stainless, we follow international quality standards, providing weld neck flanges that are essential in industries like oil & gas, petrochemical, power generation, water treatment, and chemical processing for safe and reliable connections.
Stainless Steel Weld Neck Flanges are generally made from grades 304, 304L, 316, and 316L, which include chromium (18–20%), nickel (8–12%), and molybdenum (2–3%) in the higher grades to enhance resistance to chloride corrosion and pitting. They boast a tensile strength of 515–620 MPa and a yield strength of 205–290 MPa, along with impressive elongation and high impact toughness. The tapered hub design improves stress distribution, making them ideal for extreme pressure and temperature conditions. Their corrosion resistance, strength, and precise dimensions ensure they perform reliably and leak-free in critical piping systems.
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings. |
| Pressure Ratings | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Pressure class | 150#, 300#, 600#, 1500# |
| Dimensions and Pressure Ratings for Blind Flanges | MSS- SP-44, BS3293, ANSI, Table D, E, F, & H, BS4504, PN6, 10, 16, 25, 64 BS10, DIN Standards |
| Flange Face Type Manufacturer | Raised Face (RF), Flate Face (FF), Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized. |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
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| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Blind Flange: -BS, EN, API 6A, ANSI, ASME, DIN, EN1092-1, UNI, JIS/ KS , BS4504, GB, AWWA C207, GOST, PSI
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SS Weld Neck Flanges are stainless steel flanges designed for welding to pipes, providing strong, reliable joints with excellent strength and resistance to pressure and temperature changes in various applications.
MSS-SP-44 Weld Neck Flange is a standard specification for carbon steel flanges, ensuring durability and high pressure handling. It features a long neck for improved stress distribution and welding integrity.
PN16 Weld Neck Flange is a flange type rated for a pressure class of 16 bar, featuring a long neck design for strong welding and optimal stress distribution in piping systems.
A Raised Face Weld Neck Flange features a protruding face that enhances sealing by increasing the contact area with the gasket. It provides a strong, reliable joint in high-pressure applications.
Forged Steel Weld Neck Flange is made from high-strength forged steel, providing excellent durability and performance under high pressure and temperature. Its design ensures reliable, leak-proof connections in piping systems.
JIS Weld Neck Flange conforms to Japanese Industrial Standards, offering precise dimensions and high quality. It’s designed for strong, reliable welds and optimal performance in various piping and industrial applications.
We are committed to achieving exceptional customer outcomes through the prompt delivery of high-quality Stainless Steel Weld Neck Flanges. Our products comply to rigorous safety and quality standards. Ensuring outstanding performance in all industrial applications. Each flange undergoes thorough testing to confirm its suitability for industrial use. These certifications assure clients that our Stainless Steel Weld Neck Flanges have been meticulously tested for safety and performance, with regular factory inspections and audits conducted after each performance test.
Stainless Steel Weld Neck Flanges are essential in industries that require strong, leak-proof connections. In the oil & gas and petrochemical fields, they are commonly used in pipelines, refineries, and offshore structures that operate under high pressure. Power plants and chemical facilities depend on them for secure connections in boilers, heat exchangers, and reactors. Water treatment plants utilize them in desalination and distribution systems, while the pharmaceutical and food industries rely on them for hygienic and durable piping solutions. Their robust design ensures they stand the test of time in demanding environments.







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