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Nickel Alloy Forged Fittings

Product Overview

Nickel Alloy Steel Forged Fitting Stockist & Supplier in India

Nickel alloy steel forged fittings are engineered for critical piping systems operating in highly corrosive, high-temperature, high-pressure, and chemically aggressive environments. As a reliable Nickel Alloy Steel Forged Fitting Stockist in India and Nickel Alloy Steel Forged Fitting Supplier in India, Metal-Link Steel & Alloys supplies forged fittings in a wide range of nickel-based alloy grades, sizes, pressure classes, and end connections.

Nickel Alloy Forged Fittings supplied by Metal-Link Steel and Alloys

A Nickel Alloy Steel Forged Fitting is manufactured from high-performance nickel-based material and formed through controlled forging and machining processes. Depending on the alloy grade, these fittings can provide excellent resistance to reducing acids, oxidizing media, seawater, chloride environments, pitting, crevice corrosion, stress-corrosion cracking, and elevated-temperature oxidation.

With an established presence since 1985 and ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certifications, Metal-Link supports nickel alloy forged fitting requirements with material traceability, inspection documentation and project-based supply.

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Datasheet

Nickel Alloy Steel Forged Fitting Specifications

Specification Details
Product Nickel Alloy Steel Forged Fittings
Material Grades Nickel 200, Nickel 201, Inconel 600, Inconel 625, Inconel 718, Incoloy 800, Incoloy 825, Hastelloy C276
Pressure Classes Class 3000, 6000, 9000
End Connections Socket Weld, Threaded
Standards ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95, MSS SP-97
Material Specification ASTM B564 / ASME SB564, ASTM B160 / ASME SB160
Product Form Forged & Machined
Types Available Elbows, Tees, Crosses, Couplings, Unions, Caps, Plugs, Bushings, Reducers, Swage Nipples
Application Corrosive, High-Temperature & High-Pressure Industrial Piping Systems
Product Range

Types of Nickel Alloy Steel Forged Fittings

As an experienced Nickel Alloy Steel Forged Fitting Supplier in India, Metal-Link supplies forged components for directional changes, branch connections, pipe extensions, isolation points, and system termination. Our product range includes:

  • Nickel Alloy Forged Elbows
  • Nickel Alloy Forged Tees
  • Nickel Alloy Forged Crosses
  • Nickel Alloy Forged Couplings
  • Nickel Alloy Forged Unions
  • Nickel Alloy Forged Caps
  • Nickel Alloy Forged Plugs
  • Nickel Alloy Forged Bushings
  • Nickel Alloy Forged Reducers
  • Nickel Alloy Forged Swage Nipples

Nickel Alloy Socket Weld Forged Fittings

Socket weld fittings are designed primarily for small-bore piping systems. The pipe is inserted into the fitting socket, and the external joint is welded to create a permanent connection.

  • Suitable for high-pressure piping
  • Compact connection design
  • Good mechanical integrity
  • Suitable for critical process systems
  • Available in corrosion-resistant nickel alloys

Socket weld Nickel Alloy Steel Forged Fittings are commonly used in chemical processing, offshore facilities, high-pressure process lines, and elevated-temperature systems.

Nickel Alloy Threaded Forged Fittings

Threaded forged fittings use machined internal threads to connect with externally threaded pipe or components. They are useful where welding is not practical or where dismantling is required for maintenance.

  • Allows assembly without field welding
  • Convenient for maintenance and replacement
  • Available in different thread standards
  • Suitable for selected pressure and temperature conditions

Threaded connections should be carefully evaluated for vibration, cyclic loading, leakage-sensitive fluids, and severe service conditions.

Material Grades

Nickel Alloy Steel Forged Fitting Grades Available

Grade Standard Reference Typical Application
Nickel 200 ASTM B160 / B564 Caustic handling, chemical & food processing
Nickel 201 ASTM B160 / B564 Elevated-temperature chemical & thermal applications
Inconel 600 ASTM B564 High-temperature & furnace process piping
Inconel 625 ASTM B564 Offshore, marine & chemical processing
Inconel 718 ASTM B564 High-strength elevated-temperature applications
Incoloy 800 ASTM B564 Industrial furnaces, heat exchangers & thermal processing
Incoloy 825 ASTM B564 Acid processing, offshore & oil and gas applications
Hastelloy C276 ASTM B564 Severe corrosive & aggressive chemical processing

Nickel 200 Forged Fittings

Nickel 200 is commercially pure nickel known for its excellent resistance to many reducing environments and caustic alkalis. Its high nickel content also provides good thermal and electrical conductivity.

  • Excellent resistance to caustic soda and alkalis
  • Good resistance to selected reducing chemicals
  • High ductility
  • Good thermal conductivity

Nickel 200 forged fittings are commonly used in chemical processing, caustic handling, food processing, and specialized process equipment.

Nickel 201 Forged Fittings

Nickel 201 is a low-carbon version of Nickel 200. The reduced carbon content improves its stability during prolonged exposure to elevated temperatures by reducing susceptibility to graphitization.

  • Low carbon content
  • Improved elevated-temperature stability
  • Good resistance to caustic environments
  • Excellent ductility and formability

Nickel 201 forged fittings are suitable for thermal processing and chemical applications involving elevated operating temperatures.

Inconel 600 Forged Fittings

Inconel 600 is a nickel-chromium alloy designed for high-temperature and corrosion-resistant applications. The combination of nickel and chromium provides resistance to a wide range of process environments.

  • Good resistance to high-temperature oxidation
  • Excellent thermal stability
  • Good resistance to chloride stress-corrosion cracking
  • Suitable for thermal cycling

Inconel 600 forged fittings are used in furnace systems, heat-treatment equipment, chemical processing, and high-temperature process piping.

Inconel 625 Forged Fittings

Inconel 625 is a nickel-chromium-molybdenum alloy strengthened mainly through solid-solution hardening. Its molybdenum and niobium additions provide a combination of high strength and excellent corrosion resistance.

  • Excellent resistance to pitting and crevice corrosion
  • Good resistance to seawater
  • High strength over a wide temperature range
  • Good resistance to chloride-containing environments

Inconel 625 Nickel Alloy Steel Forged Fittings are widely used in offshore oil and gas systems, marine engineering, chemical processing, and pollution-control equipment.

Inconel 718 Forged Fittings

Inconel 718 is a precipitation-hardenable nickel-chromium alloy capable of developing very high strength through controlled heat treatment. Its primary advantage is exceptional mechanical performance at elevated temperatures.

  • High tensile and yield strength
  • Excellent fatigue resistance
  • Good creep and stress-rupture properties
  • Reliable performance at elevated temperatures

Inconel 718 is generally selected for specialized high-strength and high-temperature engineering applications.

Incoloy 800 Forged Fittings

Incoloy 800 is a nickel-iron-chromium alloy developed for structural stability at elevated temperatures. It offers good resistance to oxidation and carburization.

  • Good high-temperature strength
  • Resistance to oxidation
  • Resistance to carburizing environments
  • Good metallurgical stability

Incoloy 800 forged fittings are commonly used in industrial furnaces, heat exchangers, petrochemical plants, and thermal processing equipment.

Incoloy 825 Forged Fittings

Incoloy 825 is a nickel-iron-chromium alloy containing molybdenum and copper. This composition provides strong resistance to a wide range of aqueous corrosive environments.

  • Good resistance to sulfuric and phosphoric acids
  • Resistance to reducing and oxidizing conditions
  • Good resistance to chloride stress-corrosion cracking
  • Improved resistance to pitting and crevice corrosion

Incoloy 825 Nickel Alloy Steel Forged Fittings are widely used in acid processing, chemical plants, offshore systems, and oil and gas applications.

Hastelloy C276 Forged Fittings

Hastelloy C276 is a nickel-molybdenum-chromium alloy designed for severe corrosive environments. It is particularly valued for its broad resistance to aggressive chemicals and localized corrosion.

  • Excellent resistance to reducing and oxidizing media
  • High resistance to pitting and crevice corrosion
  • Good performance in chloride-containing environments
  • Suitable for aggressive chemical processing

Hastelloy C276 forged fittings are used in chemical processing, pollution-control systems, flue gas treatment, and severe corrosive service.

Design Data

Pressure Classes, Standards & Specifications

Pressure Classes

Nickel alloy forged fittings are commonly available in the following pressure classes. The correct class should be selected according to the piping design, pipe schedule, material properties, design temperature, design pressure, and applicable code requirements.

Class 3000Standard pressure class for general high-pressure small-bore piping applications.
Class 6000Higher pressure class for demanding process and industrial piping requirements.
Class 9000Highest standard pressure class for critical high-pressure piping systems.
Nickel Alloy Forged Fittings supplied by Metal-Link Steel and Alloys

Pressure capability should always be verified using the appropriate temperature-pressure ratings rather than relying only on the pressure class designation.

Standards & Specifications

As a professional Nickel Alloy Steel Forged Fitting Stockist in India, Metal-Link supplies fittings according to applicable international standards and project specifications.

Standard Scope
ASME B16.11 Forged fittings – socket-weld and threaded end connections
ASTM B564 / ASME SB564 Nickel alloy forged material specification
ASTM B160 / ASME SB160 Nickel 200 / 201 rod and bar material specification
ASTM B366 Related nickel alloy butt-weld fittings
MSS SP-79 Socket-welding reducer inserts
MSS SP-83 Class 3000 and 6000 pipe unions
MSS SP-95 Swaged nipples and bull plugs
MSS SP-97 Integrally reinforced branch outlet fittings
EN / DIN / BS Alternative dimensional and material standards as required
Material Data

Composition, Manufacturing & Performance

Chemical Composition & Alloying Elements

The performance of a Nickel Alloy Steel Forged Fitting is determined by its nickel base and carefully controlled alloying additions.

Alloying Element Primary Contribution
Nickel Improves corrosion resistance, toughness, and thermal stability
Chromium Improves oxidation and resistance to oxidizing environments
Molybdenum Improves resistance to reducing acids, pitting, and crevice corrosion
Iron Provides structural balance in nickel-iron-chromium alloys
Copper Improves resistance to selected acid environments
Niobium Contributes to strengthening and high-temperature performance
Titanium Provides stabilization or strengthening in selected alloys
Aluminium Supports oxidation resistance and precipitation strengthening in specific alloys

The exact composition varies by grade and should be verified against the relevant ASTM or ASME specification and Material Test Certificate.

Manufacturing Process

Nickel alloys require carefully controlled forging and machining because many nickel-based materials exhibit significant work hardening. A typical manufacturing process includes:

  • Selection of certified nickel alloy billets or bar stock
  • Controlled heating to the required forging temperature
  • Open-die or closed-die forging
  • Controlled deformation to achieve the required fitting geometry
  • Solution annealing or specified heat treatment
  • Precision machining of sockets, bores, and threads
  • Pickling and surface cleaning where applicable
  • Dimensional inspection
  • Mechanical and non-destructive testing
  • Final marking and quality verification

Proper heat treatment and surface control are particularly important because surface contamination or improper processing can affect corrosion performance.

Mechanical & High-Temperature Performance

Nickel alloy forged fittings are selected for service conditions where conventional carbon steel or standard stainless steel may not provide sufficient corrosion resistance or elevated-temperature stability. Depending on the selected grade, important properties include:

  • High tensile and yield strength
  • Excellent toughness
  • Creep resistance
  • Stress-rupture resistance
  • Fatigue resistance
  • Resistance to thermal cycling
  • High-temperature oxidation resistance

The specific grade should be selected according to the combination of pressure, temperature, mechanical loading, and chemical environment.

Corrosion Resistance

Different nickel alloys are designed to address different corrosion mechanisms. Nickel 200 and Nickel 201 are particularly suitable for selected reducing and caustic environments. Inconel 625 offers strong resistance to seawater and localized corrosion, while Incoloy 825 performs well in various acid environments. Hastelloy C276 is selected for some of the most aggressive chemical processing conditions.

Depending on the grade, Nickel Alloy Steel Forged Fittings can resist:

  • Reducing acids
  • Oxidizing media
  • Sulfuric acid
  • Phosphoric acid
  • Caustic alkalis
  • Seawater
  • Chloride-containing environments
  • Pitting and crevice corrosion
  • Chloride stress-corrosion cracking

Material selection should always consider chemical concentration, operating temperature, contaminants, flow conditions, and the expected corrosion mechanism.

Welding & Fabrication Considerations

Nickel alloy fittings are commonly welded using qualified procedures and compatible filler materials. Important fabrication considerations include:

  • Thorough cleaning before welding
  • Prevention of iron and carbon steel contamination
  • Correct filler metal selection
  • Controlled heat input
  • Suitable interpass temperature control
  • Proper shielding and joint preparation
  • Compliance with approved welding procedures

The welding procedure should be developed specifically for the nickel alloy grade and service requirements.

Industry Use

Applications of Nickel Alloy Steel Forged Fittings

Nickel alloy forged fittings are widely used in industries where corrosion resistance and high-temperature reliability are critical.

  • Chemical Processing Plants:
    Piping systems handling aggressive acids, solvents, and corrosive process fluids requiring nickel alloy forged connections.
  • Acid Production & Handling:
    Sulfuric acid, phosphoric acid, and other corrosive acid-handling systems using Incoloy 825 or Hastelloy C276 fittings.
  • Oil & Gas Processing:
    Corrosion-resistant piping connections for sour service, high-pressure, and chloride-containing process environments.
  • Offshore Platforms:
    Marine and seawater piping systems requiring Inconel 625 or other corrosion-resistant alloy fittings.
  • Petrochemical Facilities:
    High-temperature and corrosive process piping in petrochemical production and refining systems.
  • Marine Engineering:
    Seawater systems, offshore structures, and marine equipment requiring reliable nickel alloy piping connections.
  • Desalination Systems:
    Seawater and brine handling piping where corrosion-resistant alloy fittings are essential.
  • Power Generation:
    High-temperature steam and process piping in power plants using suitable nickel alloy grades.
  • Heat-Treatment Equipment:
    Furnace and heat-treatment system piping using Inconel 600 or Incoloy 800 fittings.
  • Pollution-Control Equipment:
    Flue gas treatment, scrubber systems, and exhaust gas piping requiring Hastelloy C276 or similar alloy fittings.
  • High-Pressure Process Piping:
    Critical small-bore connections in demanding pressure and temperature process systems.
Certification

Testing, Inspection & Quality of Nickel Alloy Steel Forged Fittings

As a dependable Nickel Alloy Steel Forged Fitting Supplier in India, Metal-Link Steel & Alloys can supply products with testing and inspection according to project requirements. Available testing may include:

  • Chemical composition analysis
  • Tensile testing
  • Hardness testing
  • Positive Material Identification (PMI)
  • Liquid penetrant testing
  • Ultrasonic testing where applicable
  • Radiographic testing where required
  • Dimensional inspection
  • Thread gauge inspection
  • Visual examination

With an established presence since 1985 and ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certifications, Metal-Link supports consistent product quality. Documentation may include Material Test Certificates, PMI reports, NDT reports, and third-party inspection certificates.

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Pan-India Supply

Nickel Alloy Steel Forged Fitting Supplier & Stockist Across India

Metal-Link Steel & Alloys supplies Nickel Alloy Steel Forged Fittings to EPC contractors, engineering companies, process plants, offshore operators, fabricators, distributors and industrial buyers across major Indian markets. As a Nickel Alloy Steel Forged Fitting Supplier in India, Metal-Link supports standard and project-specific requirements based on grade, size, pressure class and quantity.

Cities We Supply

MumbaiPuneAhmedabadVadodaraSurat DelhiGurugramNoidaChennaiBengaluru HyderabadKolkataJaipurRajkotCoimbatore VisakhapatnamNagpurIndore
Have Questions?

Frequently Asked Questions

What grades of nickel alloy forged fittings do you supply?
Metal-Link supplies Nickel Alloy Steel Forged Fittings in Nickel 200, Nickel 201, Inconel 600, Inconel 625, Inconel 718, Incoloy 800, Incoloy 825, and Hastelloy C276, subject to the required specification and availability.
What pressure classes are available for nickel alloy forged fittings?
The supplied range covers Class 3000, 6000 and 9000. The correct pressure class should be selected according to the piping design, pipe schedule, material properties, design temperature, and design pressure.
What is the difference between Inconel 625 and Hastelloy C276 forged fittings?
Inconel 625 is a nickel-chromium-molybdenum alloy offering excellent resistance to pitting, crevice corrosion, and seawater, and is widely used in offshore and marine applications. Hastelloy C276 is a nickel-molybdenum-chromium alloy designed for broader resistance to aggressive chemical environments including both reducing and oxidizing media, and is commonly selected for the most severe chemical processing conditions.
When should Incoloy 825 be selected over stainless steel?
Incoloy 825 is selected when stainless steel grades such as 316L do not provide sufficient resistance to the process environment. Its higher nickel, molybdenum, and copper content provides improved resistance to sulfuric acid, phosphoric acid, chloride stress-corrosion cracking, and reducing conditions where standard stainless steel grades may not perform adequately.
What standards are used for nickel alloy forged fittings?
Common standards include ASME B16.11 for socket weld and threaded fittings, ASTM B564 / ASME SB564 for nickel alloy forged material, and MSS SP-79, MSS SP-83, MSS SP-95 and MSS SP-97 for specific fitting types. EN, DIN and BS standards can also be referenced as required.
Can you supply material test certificates with nickel alloy forged fittings?
Yes. Nickel Alloy Steel Forged Fittings can be supplied with applicable Material Test Certificates (MTCs), chemical analysis, mechanical test results, PMI reports, NDT reports, and third-party inspection documentation as required by the project specification.
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Looking for a Nickel Alloy Steel Forged Fitting Stockist in India for your chemical processing, offshore, or high-temperature piping requirements? Contact Metal-Link Steel & Alloys with your required fitting type, material grade, size, pressure class, end connection, thread specification where applicable, quantity, testing requirements, inspection requirements and documentation requirements for availability and project-specific pricing.

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