Nexus Alloys, a pioneering alloy Manufacture and exporter ,importer company, we recognize the paramount importance of robust connections in industries where reliability, safety, and performance are non-negotiable. Weld Neck Flanges, an integral part of our product portfolio, stand as a testament to our commitment to providing top-tier solutions for critical applications across various sectors.

A Weld Neck Flange is a precision-engineered component designed for secure and enduring connections between pipes or fittings. Characterized by its distinctive design, it features a circular disc seamlessly transitioning into a protruding neck, or hub. This hub not only enhances structural integrity but also simplifies the welding process, ensuring a seamless joint. The flange face, available in raised (RF) or flat (FF) variations, provides a reliable platform for gasket placement, crucial for creating a leak-free seal.

• Exceptional Strength: The extended hub of the Weld Neck Flange reinforces the connection, effectively distributing stress and reducing the risk of distortion, even under extreme pressures and temperatures.
• Reliable Sealing: The precisely machined flange face accommodates gaskets, maintaining a tight seal that prevents leaks and ensures operational safety.
• Weldability: Designed with bevelled edges, the flange neck enables smooth welding, guaranteeing a strong and enduring bond between the flange and the pipe.
• Versatility in Flange Faces: Choose between raised face (RF) and flat face (FF) options based on your application’s requirements, ensuring compatibility with various sealing methods.
• Optimized Flow: The bore’s alignment with the pipe’s inner diameter guarantees a seamless flow of fluids, critical in industries where efficiency is paramount.

• Aerospace & Defence: Weld Neck Flanges find utility in aerospace and defence applications, where high-pressure hydraulic systems demand steadfast connections for safe and reliable operation.
• Nuclear Power: Nuclear facilities rely on Weld Neck Flanges to maintain leak-proof joints in pipelines carrying hazardous materials, contributing to the safety and integrity of nuclear operations.
• Oil & Gas: In the oil and gas sector, where the combination of high pressures and corrosive environments prevails, Weld Neck Flanges play a pivotal role in preventing leaks and ensuring uninterrupted operations.
• Chemical Industries: Chemical processing demands leak-free connections to safeguard against hazardous leaks. Weld Neck Flanges stand as a barrier against potential risks.
• Energy & Power: In power generation facilities, where efficiency and safety are paramount, Weld Neck Flanges provide reliable joints for pipelines carrying steam, water, and gases.
• Automotive: Weld Neck Flanges find application in specialized automotive systems, such as high-performance exhaust systems, where the need for secure connections is imperative.
• Petrochemical Industries: In the petrochemical sector, where a range of aggressive chemicals are handled, Weld Neck Flanges ensure the containment of hazardous substances.
• Fertilizer Industries: In fertilizer manufacturing, where corrosive elements are commonplace, Weld Neck Flanges uphold the structural integrity of pipelines.

we comprehend how vital quality components are for operational safety and efficiency. Our Weld Neck Flanges are the embodiment of precision engineering, reflecting unwavering quality and serving as the foundation for reliable connections in critical industries. Partner with us for unmatched solutions that uphold the highest standards of performance and reliability.

CERTIFICATES:

• Test Certificate : Manufacturer test Certificate En 10204 , 3.1 & 3.2
• IBR Test Certificate Form IIIC

STAINLESS STEEL & DUPLEX STEEL WELD NECK FLANGES:

• Size : 1/2″ NB to 48″ NB, ANSI/ASME B 16.5
• Standard : 150# , 300#, 600#, 900#, 1500#, 2500# in ASA 150 & ASA 300
• Stainless Steel :ASTM A 182 F-304/304H/304L/316/316H/316L/316Ti/309/310/317L/321/347/904L
• Duplex steel : ASTM A 182 – F 51, F53, F55

ALLOY STEEL, CARBON STEEL & LTCS WELD NECK FLANGES

• Size : 1/2″ NB to 48″ NB, ANSI/ASME B16.5
• Class : 150# , 300#, 600#, 900#, 1500#, 2500# in ASA 150 & ASA 300
• Alloy steel : ASTM A 182 – F5, F9, F11, F12, F22 & F91
• Carbon steel : ASTM A 105, ASTM A694, F42, F46, F52, F60, F65, F70
• Low Temp.CS : A 350 LF2, A 516 GR. 70

COPPER & NICKEL ALLOYS WELD NECK FLANGES:

• Size : 1/2″NB to 6″ NB, ANSI/ASME B 16.5
• Standard : 150# , 300#, 600#, 900#, 1500#, 2500# in ASA 150 & ASA 300
• Copper Nickel : C70600(90: 10). C71500 (70:30), C71640
• Nickel : UNS N02200, N02201
• Monel : UNS N04400, N05500, Alloy 20
• lnconel : UNS N06600, N06601, N06625, N08800, N08810, N08825
• Hastelloy : UNS N10276, N06022, N10665, N06455
• Titanium Gr. 1,2,3 DTH 3.7025, DTH 3.7035, DTH 3.7055
• SMO 254 Grade UNS S31254

slipon flanges – blind flanges – orifice flanges