Hastelloy Flanges

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Hastelloy Flanges are made from nickel-based alloys that stand out for its resistance to corrosion, high pressure and extreme heat. It is designed to create secure, leak-free joints in tough industrial conditions. Different types include weld neck, slip-on, blind, socket weld, threaded, lap joint, plate, reducing, spectacle blind and ring-type joint (RTJ) flanges. From connecting pipes of various sizes to sealing pipelines each type has a distinct function. Well known grades such as Hastelloy C276, C22, and B2 offer superior defence against seawater, oxidising agents and acids. Metracore Alloys, a reputable Hastelloy flanges manufacturer in India provides a large assortment designed for demanding applications.

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These flanges are manufactured under strict standards such as ASTM B564/ASME SB564, ASME B16.5, and EN-1092. Sizes generally range from ½ inch to 48 inches with pressure ratings from Class 150# to 2500#. Available face types include raised face, flat face, and RTJ. Their broad chemical resistance makes them effective against hydrochloric, sulfuric, acetic, and formic acids. They also show strong resistance to pitting, crevice corrosion and stress cracking. Hastelloy flanges function well in high pressure and high temperature settings because of their exceptional tensile strength and toughness. At the same time, they maintain good weldability and fabricability, making them suitable for precision machining.

Industries rely on these flanges in critical setups. In chemical plants, they handle harsh acids without degradation. In oil and gas, they work under high pressure and corrosive conditions, especially offshore. They are also widely used in power plants, marine systems, wastewater treatment, pulp and paper, and aerospace. Manufacturing involves certified raw material selection, forging, heat treatment, CNC machining, and finishing. Every flange is tested for strength, hardness and chemical accuracy before dispatch.

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Every product satisfies international quality standards thanks to certifications like ASTM B564 and EN 10204 (3.1/3.2). As top suppliers of Hastelloy flanges we carefully package every order to guard against damage during transit and deliver flanges that are ready for installation.

Hastelloy Flanges Specification

Types of Hastelloy Flanges

Hastelloy Flanges Face Forms

Reach out to Metracore Alloys for reliable Hastelloy Flanges solutions

Technical Details of Hastelloy Flanges

Hastelloy Flange Standards / Types And Pressure Class

ASME/ANSI B 16.5	Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47	Welding Neck Flange, Blind Flange [Series A & B]
PRESSURE CLASS	75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36	Welding Neck Flange, Slip on Flange, Threaded Flange
PRESSURE CLASS	300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1	Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange
PRESSURE CLASS	PN 2.5 TO PN 40
BS 4504[PART 1]	Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange
PRESSURE CLASS	PN 2.5 TO PN 400
BS 1560 BOSS	Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
BS10	Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind 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

Manufacturing Process of Hastelloy Flanges

Hastelloy Flanges Application

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