ASTM / ASME / DIN Certified

Hastelloy Flanges Manufacturers in India

Unicorn Metal Industries is a leading Hastelloy Flanges Manufacturers in India, offering high-performance flange solutions designed for aggressive chemical and corrosive environments. Hastelloy Flanges are widely used in industries where resistance to oxidation, pitting, and chemical attack is essential.

Our product range includes slip-on, weld neck, blind, socket weld, and threaded Hastelloy Flanges manufactured as per ANSI, ASME, DIN, and international standards. These Hastelloy Flanges are part of our industrial flanges manufacturers range and are widely used in chemical processing, marine, and power generation industries. We also provide custom Hastelloy Flanges tailored to project requirements.

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½" – 60" NBSize Range

150# – 2500#Pressure Class

C-22/C-276/C-2000Core Grades

Hastelloy Flanges Manufacturers in India

Overview

Hastelloy Flanges Overview

Hastelloy Flanges are nickel-molybdenum-chromium alloy flanges known for their exceptional resistance to highly corrosive chemicals. These Hastelloy Flanges are specifically designed for environments where conventional materials fail due to chemical attack or extreme conditions.

One of the key advantages of Hastelloy Flanges is their superior resistance to pitting, crevice corrosion, and stress corrosion cracking. These Hastelloy Flanges are widely used in chemical plants, pollution control systems, and offshore applications. At Unicorn Metal Industries, Hastelloy Flanges are manufactured with precision processes, similar to advanced solutions such as Inconel flanges and Incoloy flanges.

Datasheet

Hastelloy Flanges Specifications

Full mill-standard specifications, material grades, chemical composition, and mechanical properties for our Hastelloy Flanges range.

Hastelloy Flanges — Specifications

SHEET 01

Specification	Details
Product	Hastelloy Flanges
Standard	ASTM B564 / ASME SB564
Dimensions	ANSI/ASME B16.5, B16.47, B16.48, BS, DIN, EN
Size Range	½" NB to 60" NB
Pressure Class	150#, 300#, 600#, 900#, 1500#, 2500#, PN Series
Face Type	FF, RF, RTJ
Types	Slip-On, Weld Neck, Blind, Socket Weld, Threaded

Hastelloy Flanges Material Grades

SHEET 02

Grade	Application
Hastelloy C-22	Chemical processing
Hastelloy C-276	Marine & chemical
Hastelloy C-2000	Highly aggressive environments

Chemical Composition

SHEET 03

Element	Range
Nickel	Balance
Molybdenum	13–17%
Chromium	14–22%
Iron	≤5%

Mechanical Properties

SHEET 04

Property	Value	Unit
Tensile Strength	≥690	MPa
Yield Strength	≥283	MPa
Hardness	≤250	HB
Elongation	≥40	%

Product Types

Hastelloy Flanges Manufacturing Expertise

Manufacturing precision is essential for Hastelloy Flanges due to their use in highly corrosive environments. At Unicorn Metal Industries, Hastelloy Flanges are produced using controlled forging, machining, and finishing processes to ensure dimensional accuracy and consistent performance.

PROCESS / 01

Hot Forging

High-temp forming process for flanges providing superior strength and material integrity for demanding applications.

PROCESS / 02

CNC Machining

Precision finishing on all flange types ensuring dimensional accuracy and perfect fitment in piping systems.

PROCESS / 03

Drilling

Precise bolt hole creation ensuring proper fitment and alignment of all Hastelloy Flanges.

PROCESS / 04

Heat Treatment

Strength enhancement through controlled heat treatment for critical and high-stress applications.

PROCESS / 05

Surface Finishing

Polishing and finishing of all flanges ensuring superior corrosion resistance and aesthetic quality.

PROCESS / 06

Inspection

Comprehensive dimensional checks on all products ensuring quality and compliance with standards.

TYPE / 07

Ring Joint Hastelloy Flanges

Used in high-pressure systems, providing tight sealing with metal-to-metal contact.

TYPE / 08

Custom Hastelloy Flanges

Manufactured based on engineering drawings to meet specialized industrial requirements.

Flange Types

Types of Hastelloy Flanges We Manufacture

We manufacture a wide range of Hastelloy Flanges designed for excellent corrosion resistance, durability, and performance in aggressive industrial environments.

Flange Type	Description
Slip-On Hastelloy Flanges	Easy to install and align, ideal for low to moderate pressure systems where flexibility is required.
Weld Neck Hastelloy Flanges	Designed for high-pressure and high-temperature applications, providing superior strength through a strong welded connection.
Blind Hastelloy Flanges	Used to seal pipe ends and isolate piping systems, ensuring leak-proof closure in critical environments.
Socket Weld Hastelloy Flanges	Suitable for small-diameter pipelines, offering strong and reliable connections.
Threaded Hastelloy Flanges	Ideal for applications where welding is not possible, providing secure threaded connections.
Lap Joint Hastelloy Flanges	Designed for systems requiring frequent dismantling, offering flexibility and ease of alignment.

Where They're Used

Applications of Hastelloy Flanges

Hastelloy Flanges are widely used in industries requiring exceptional corrosion resistance. They are commonly used in chemical processing, pollution control, marine, and offshore industries.

These Hastelloy Flanges perform efficiently in aggressive environments involving acids, chlorides, and high temperatures, ensuring long-term reliability.

Our Commitment

Why Choose Our Hastelloy Flanges

Selecting the right manufacturer is essential for Hastelloy Flanges used in critical environments. At Unicorn Metal Industries, our Hastelloy Flanges are manufactured with precision, strict quality control, and full traceability to ensure consistent performance.

We use certified raw materials and advanced processes to meet international standards
Custom Hastelloy Flanges tailored to project specifications
Ensuring durability, reliability, and timely delivery for demanding industrial applications

Quality Assurance

At Unicorn Metal Industries, strict quality control procedures are followed to ensure the reliability of Hastelloy Flanges.

Raw Material Verification

The process includes raw material verification to confirm grade and composition before production starts.

Dimensional Inspection

Dimensional inspection and in-process quality checks are conducted during manufacturing.

Mechanical Testing

Mechanical testing is conducted to confirm strength and performance against specification.

Final Inspection

Each flange undergoes final inspection before dispatch, ensuring compliance with international standards and consistent performance in demanding industrial applications.

Full Catalogue

Our Flanges Product Range

Explore our complete portfolio of industrial flanges manufactured for strength, corrosion resistance, and long-term performance.

Stainless Steel flanges Carbon Steel flanges Alloy Steel flanges Duplex Steel flanges Inconel flanges Incoloy flanges Hastelloy flanges Monel flanges Nickel Alloy flanges Titanium flanges

FAQ

Frequently Asked Questions

What are Hastelloy Flanges used for?

Hastelloy Flanges are used in highly corrosive environments such as chemical processing plants, marine systems, and pollution control equipment.

What grades are available in Hastelloy Flanges?

Common grades include Hastelloy C-22, C-276, and C-2000, each offering excellent resistance to chemical corrosion and oxidation.

Why choose Hastelloy Flanges over stainless steel flanges?

Hastelloy Flanges offer superior resistance to aggressive chemicals compared to Stainless Steel flanges, making them ideal for harsh environments.

Are Hastelloy Flanges suitable for chemical industries?

Yes, Hastelloy Flanges are specifically designed to withstand aggressive acids and chemical environments.

What types of Hastelloy Flanges are available?

They are available in slip-on, weld neck, blind, threaded, and socket weld types for various industrial applications.

How do Hastelloy Flanges compare with Inconel flanges?

Hastelloy Flanges are better suited for chemical resistance, while Inconel flanges perform better in high-temperature environments.