Product Overview
Nickel Alloy Fastener Stockist & Supplier in India
Nickel alloy fasteners are designed for industrial applications where standard
carbon steel, alloy steel, or conventional stainless steel may not provide
sufficient resistance to corrosion, elevated temperatures, or aggressive
chemical environments. As a reliable Nickel Alloy Fastener Stockist in India
and Nickel Alloy Fastener Supplier in India, Metal-Link Steel & Alloys
supplies bolts, nuts, stud bolts, threaded rods, screws, washers, and other
fastening components in a wide range of nickel-based alloys.
A Nickel Alloy Fastener can be selected according to the specific combination
of chemical exposure, operating temperature, pressure, mechanical loading, and
corrosion mechanism involved. Nickel, chromium, molybdenum, copper, and other
alloying elements contribute to different performance characteristics, making
grade selection particularly important for critical industrial joints.
With an established presence since 1985 and ISO 9001:2015, ISO 14001:2015 and
ISO 45001:2018 certifications, Metal-Link supports nickel alloy fastener
requirements with material traceability, inspection documentation and
project-based supply.
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Factory Rates →
Datasheet
Nickel Alloy Fastener Specifications
| Specification |
Details |
| Product |
Nickel Alloy Fasteners |
| Material Grades |
Inconel 600, Inconel 625, Incoloy 800, Hastelloy
C276, Monel 400 |
| Material Specifications |
ASTM B160, B164, B166, B446, B472, B574, B564,
B805, F467, F468 |
| Types Available |
Hex Bolts, Heavy Hex Bolts, Stud Bolts, Threaded
Rods, Hex Nuts, Heavy Hex Nuts, Socket Head Cap
Screws, Machine Screws, Set Screws, U-Bolts, Anchor
Bolts, Eye Bolts, Flat Washers, Spring
Washers |
| Thread Types |
Metric, UNC, UNF, and other thread forms as
required |
| Product Form |
Hot / Cold Forged & Machined, Solution Annealed
or Age Hardened as applicable |
| Application |
Corrosive, High-Temperature, Offshore &
Critical Industrial Process Systems |
Product Range
Types of Nickel Alloy Fasteners
As an experienced Nickel Alloy Fastener Supplier in India, Metal-Link supplies
fastening products for process equipment, pressure systems, flanged joints,
offshore installations, heat-processing equipment, and corrosive industrial
environments. Our product range includes:
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Nickel Alloy Hex Bolts
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Nickel Alloy Heavy Hex Bolts
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Nickel Alloy Stud Bolts
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Nickel Alloy Threaded Rods
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Nickel Alloy Hex Nuts
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Nickel Alloy Heavy Hex Nuts
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Nickel Alloy Socket Head Cap Screws
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Nickel Alloy Machine Screws
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Nickel Alloy Set Screws
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Nickel Alloy U-Bolts
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Nickel Alloy Anchor Bolts
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Nickel Alloy Eye Bolts
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Nickel Alloy Flat Washers
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Nickel Alloy Spring Washers
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Custom Nickel Alloy Fasteners
Types of Nickel Alloy Bolts
Hex BoltsUsed in machinery,
structural connections, industrial equipment, and mechanical
assemblies. Supplied in standard or project-specific dimensions
according to the required material grade.
Stud BoltsWidely used in
flanged joints, pressure vessels, valves, heat exchangers, and
critical process piping systems. Material selection should be
compatible with the flange material and service
environment.
Heavy Hex BoltsHave larger
head dimensions and are used in demanding industrial joints requiring
robust mechanical connections and controlled tightening.
U-BoltsUsed for clamping and
supporting pipes, tubes, and equipment in corrosive or high-temperature
environments.
Threaded RodsProvide
continuous threaded engagement and are used for support systems,
equipment assemblies, anchor applications, and custom fastening
requirements.
Nickel Alloy Nuts & Washers
Hex NutsInternally threaded
components used with bolts and stud bolts to create high-integrity
mechanical joints. Nut material selected for compatibility with the
bolt and the operating environment.
Heavy Hex NutsCommonly used
with larger diameter bolts and stud bolts in pressure-retaining and
heavy-duty industrial applications.
Flat WashersDistribute the
clamping force across a larger area and help protect the joint surface
from localized damage during tightening.
Locking WashersMay be used
where the joint design requires additional resistance to loosening.
Suitability evaluated according to vibration, preload, temperature,
and joint design requirements.
Material Grades
Nickel Alloy Fastener Grades Available
| Material Grade |
Principal Alloy System |
Typical Service Focus |
| Inconel 600 |
Nickel-Chromium |
High-temperature oxidation and corrosion
resistance |
| Inconel 625 |
Nickel-Chromium-Molybdenum-Niobium |
Offshore, marine and aggressive corrosion |
| Incoloy 800 |
Iron-Nickel-Chromium |
Elevated-temperature strength and oxidation
resistance |
| Hastelloy C276 |
Nickel-Molybdenum-Chromium |
Severe chemical corrosion resistance |
| Monel 400 |
Nickel-Copper |
Seawater and reducing environments |
Inconel 600 Fasteners
Inconel 600 is a nickel-chromium alloy known for its resistance to oxidation
and corrosion over a broad temperature range. Its high nickel content provides
good resistance to several reducing environments and excellent resistance to
chloride stress-corrosion cracking under many service conditions.
- ✓Good high-temperature
oxidation resistance
- ✓Excellent resistance to
chloride stress-corrosion cracking
- ✓Good mechanical
properties across a broad temperature
range
- ✓Suitable for
heat-processing and chemical
applications
Inconel 600 Nickel Alloy Fasteners are used in furnace equipment, chemical
processing, thermal systems, and high-temperature assemblies.
Inconel 625 Fasteners
Inconel 625 is a nickel-chromium-molybdenum-niobium alloy with excellent
corrosion resistance and high strength. It is primarily strengthened through
solid-solution strengthening rather than precipitation hardening.
- ✓Excellent resistance to
pitting and crevice corrosion
- ✓High resistance to
chloride-induced corrosion
- ✓Good seawater
resistance
- ✓High mechanical
strength
- ✓Good fatigue and
thermal-fatigue performance
Inconel 625 Nickel Alloy Fasteners are commonly used in offshore oil and gas
equipment, marine systems, chemical processing, and seawater
applications.
Incoloy 800 Fasteners
Incoloy 800 is an iron-nickel-chromium alloy developed for high-temperature
strength and resistance to oxidation and carburization.
- ✓Good structural
stability at elevated temperatures
- ✓Resistance to oxidation
and carburizing environments
- ✓Good creep and rupture
properties within its intended service
range
- ✓Suitable for furnace and
thermal processing applications
Incoloy 800 fasteners are used in heat-treatment equipment, petrochemical
processing, furnace components, and elevated-temperature piping
systems.
Hastelloy C276 Fasteners
Hastelloy C276 is a nickel-molybdenum-chromium alloy developed for highly
aggressive chemical environments. Its alloy composition provides excellent
resistance to a wide range of corrosive media.
- ✓Excellent resistance to
localized corrosion
- ✓Strong resistance to
pitting and crevice corrosion
- ✓Good performance in
oxidizing and reducing chemical
environments
- ✓Resistance to many
aggressive process chemicals
Hastelloy C276 Nickel Alloy Fasteners are widely used in chemical processing,
pollution-control equipment, pharmaceutical processing, and severe corrosive
service.
Monel 400 Fasteners
Monel 400 is a nickel-copper alloy known for its excellent resistance to
seawater and many reducing environments. It also provides good mechanical
properties across a broad temperature range.
- ✓Excellent resistance to
seawater corrosion
- ✓Good resistance to
reducing acids and chemicals
- ✓Good
toughness
- ✓Suitable for marine and
offshore applications
Monel 400 fasteners are commonly used in marine engineering, seawater systems,
oil and gas equipment, and chemical processing.
Design Data
Standards, Specifications & Design Considerations
Standards & Specifications
As a professional Nickel Alloy Fastener Stockist in India, Metal-Link supplies
products according to applicable ASTM, ASME, DIN, ISO, and project-specific
requirements.
| Standard |
Scope |
| ASTM B160 |
Nickel rod and bar (Nickel 200 / 201) |
| ASTM B164 |
Nickel-copper alloy rod, bar, and wire (Monel
400) |
| ASTM B166 |
Nickel-chromium-iron alloy rod, bar, and wire
(Inconel 600) |
| ASTM B446 |
Nickel-chromium-molybdenum-niobium alloy rod, bar,
and wire (Inconel 625) |
| ASTM B472 |
Nickel alloy unsupported disk and ring forgings for
flanges and fittings |
| ASTM B574 |
Low-carbon nickel-molybdenum-chromium alloy rod
(Hastelloy C276) |
| ASTM B564 |
Nickel alloy forgings |
| ASTM B805 / ASTM F467 / ASTM F468 |
Nickel alloy nuts, bolts, screws, and washers |
| ASME B18 / DIN / ISO / EN |
Dimensional and alternative material standards as
required |
Galvanic Compatibility & Joint Design
When a Nickel Alloy Fastener is installed with a different metallic material,
galvanic compatibility should be considered, particularly in the presence of an
electrolyte such as seawater or process moisture. Important considerations
include:
Relative Corrosion
PotentialThe difference in electrochemical potential
between connected materials determines the risk and rate of galvanic
corrosion.
Surface Area
RatioA small anode (fastener) and large cathode
(connected structure) can accelerate fastener corrosion. Proper
material selection minimizes this risk.
Crevice
FormationCrevices under bolt heads and in thread
engagement zones can create localized corrosion in the presence of
aggressive media.
Protective Coatings or
InsulationInsulating washers or protective coatings on
joint surfaces can reduce galvanic current flow and associated
corrosion risks.
Material Data
Composition, Manufacturing & Performance
Chemical Composition & Alloying Elements
The performance of a Nickel Alloy Fastener is strongly influenced by its alloy
composition and metallurgical condition.
| Alloying Element |
Primary Contribution |
| Nickel |
Provides corrosion resistance and metallurgical
stability |
| Chromium |
Improves oxidation and corrosion resistance |
| Molybdenum |
Enhances resistance to pitting and crevice
corrosion |
| Copper |
Improves resistance to selected reducing environments
and seawater |
| Niobium |
Provides strengthening in selected nickel
alloys |
| Iron |
Supports structural and high-temperature properties
in selected grades |
| Aluminium & Titanium |
Contribute to strengthening in
precipitation-hardenable alloys |
The exact chemical composition depends on the selected alloy grade and should
be verified against the applicable specification and Material Test
Certificate.
Manufacturing Process
Nickel alloys generally have high strength and significant work-hardening
characteristics, requiring controlled manufacturing and machining processes.
The production of a Nickel Alloy Fastener may include:
- ✓Selection of certified nickel
alloy bar or raw material
- ✓Cutting to the required
size
- ✓Hot or cold
forging
- ✓Machining of heads and special
profiles
- ✓Thread rolling or thread
cutting
- ✓Solution annealing or age
hardening where required
- ✓Surface cleaning and
finishing
- ✓Dimensional
inspection
- ✓Mechanical and material
testing
- ✓Final identification and
documentation
The heat treatment process depends on the specific alloy. Some grades are
supplied in a solution-annealed condition, while precipitation-hardenable
nickel alloys may require controlled aging to achieve the specified mechanical
properties.
Mechanical & Corrosion Performance
A Nickel Alloy Fastener is often selected for applications where the joint must
retain mechanical integrity under severe corrosion or elevated-temperature
conditions. Important performance characteristics may include:
- ✓High tensile and yield
strength
- ✓Resistance to pitting
and crevice corrosion
- ✓Resistance to chloride
stress-corrosion cracking
- ✓High-temperature
oxidation resistance
- ✓Good fatigue
resistance
- ✓Thermal-fatigue
resistance
- ✓Seawater corrosion
resistance
- ✓Resistance to reducing
and oxidizing chemical
environments
The performance level varies significantly between grades. Hastelloy C276 is
primarily selected for severe chemical corrosion, while Inconel 625 is widely
used for offshore and chloride-containing environments.
High-Temperature Service Considerations
Nickel alloy fasteners can maintain useful mechanical and corrosion-resistant
properties at temperatures where many conventional steels experience reduced
strength or accelerated oxidation. The grade should be selected based on
continuous operating temperature, maximum design temperature, thermal cycling,
creep requirements, stress-relaxation behaviour, oxidizing or reducing
atmosphere, and applied mechanical load. Incoloy 800 and selected Inconel
grades are commonly used in elevated-temperature systems, while the exact
alloy must be matched to the operating environment and applicable design
requirements.
Industry Use
Applications of Nickel Alloy Fasteners
Nickel alloy fasteners are used in industries where severe corrosion, high
temperature, pressure, or critical mechanical loading makes conventional
fastener materials unsuitable.
- ✓Oil & Gas
Processing:
Flange bolting,
equipment assembly, and piping connections in corrosive oil and gas
production and processing facilities using Inconel 625 or Monel 400
fasteners.
- ✓Offshore
Platforms:
Topside and
subsea fastening systems in offshore oil and gas installations
requiring seawater and chloride corrosion-resistant nickel alloy
grades.
- ✓Subsea
Equipment:
Critical fastener
assemblies in subsea production systems and pipeline equipment
using Inconel 625 or super duplex compatible
grades.
- ✓Petrochemical
Plants:
Process equipment,
vessel flange bolting, and piping connections in petrochemical
facilities requiring corrosion-resistant nickel alloy
fasteners.
- ✓Chemical
Processing:
Equipment
bolting in chemical plants handling aggressive acids, chlorides,
and corrosive chemicals using Hastelloy C276 or Inconel 625
fasteners.
- ✓Marine
Engineering:
Marine
equipment, seawater piping, and offshore structural assemblies
using Monel 400 or Inconel 625 nickel alloy
fasteners.
- ✓Seawater Handling
Systems:
Seawater injection,
cooling, and utility piping fastener requirements using Monel 400
or Inconel 625 for reliable seawater corrosion
resistance.
- ✓Desalination
Plants:
High-pressure
equipment and piping fastener assemblies in reverse osmosis and
thermal desalination systems.
- ✓Power
Generation:
High-temperature
equipment bolting in power plants using Incoloy 800 or Inconel 600
fasteners for elevated-temperature service.
- ✓Heat-Treatment
Facilities & Industrial Furnaces:
Furnace
and heat-treatment equipment
fastening using Inconel 600 and Incoloy 800 for oxidation
resistance and high-temperature
stability.
- ✓Pollution-Control
Equipment:
Flue gas
scrubbers, exhaust treatment systems, and environmental equipment
fasteners using Hastelloy C276 for aggressive chemical
resistance.
- ✓Pharmaceutical
Processing:
Equipment and
vessel bolting in pharmaceutical manufacturing using
corrosion-resistant nickel alloy fasteners.
Certification
Testing, Inspection & Quality of Nickel Alloy Fasteners
As a dependable Nickel Alloy Fastener Supplier in India, Metal-Link Steel &
Alloys can supply products with inspection and testing according to applicable
specifications and project requirements. Available testing may include:
- ✓Chemical composition
analysis
- ✓Tensile testing
- ✓Proof load
testing
- ✓Hardness testing
- ✓Positive Material
Identification (PMI)
- ✓Thread gauge
inspection
- ✓Dimensional
inspection
- ✓Liquid penetrant testing
where required
- ✓Ultrasonic testing where
applicable
- ✓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, mechanical
test reports, dimensional inspection reports, heat-treatment records, and
third-party inspection certificates.
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Certificate →
Pan-India Supply
Nickel Alloy Fastener Supplier & Stockist Across India
Metal-Link Steel & Alloys supplies Nickel Alloy Fasteners to EPC
contractors, engineering companies, offshore operators, chemical plants,
process industries, fabricators, distributors and industrial buyers across
major Indian markets. As a Nickel Alloy Fastener Supplier in India,
Metal-Link supports standard and project-specific requirements based on grade,
size, thread type, and quantity.
Cities We Supply
MumbaiPuneAhmedabadVadodaraSurat
DelhiGurugramNoidaChennaiBengaluru
HyderabadKolkataJaipurRajkotCoimbatore
VisakhapatnamNagpurIndore
Have Questions?
Frequently Asked Questions
What grades of nickel alloy fasteners do you supply?
Metal-Link supplies Nickel Alloy Fasteners in
Inconel 600, Inconel 625, Incoloy 800, Hastelloy C276, and Monel 400
grades, subject to the required specification and availability.
What is the difference between Inconel 625 and Hastelloy C276
fasteners?
Inconel 625 is a nickel-chromium-molybdenum-niobium
alloy offering excellent resistance to pitting, crevice corrosion, and
chloride stress-corrosion cracking. It is widely used for offshore, marine,
and seawater applications. Hastelloy C276 is a nickel-molybdenum-chromium
alloy designed for the broadest resistance to aggressive chemical
environments including both reducing and oxidizing media, and is commonly
selected for the most severe chemical processing conditions.
When should Monel 400 fasteners be selected?
Monel 400 is selected for applications requiring
excellent resistance to seawater corrosion and reducing environments such
as hydrofluoric acid and many reducing acids. It is commonly used in marine
engineering, seawater piping, oil and gas equipment, and chemical
processing where its nickel-copper composition provides reliable
performance.
What ASTM standards apply to nickel alloy fasteners?
Common ASTM standards for nickel alloy fasteners
include ASTM B160 for Nickel 200/201 rod and bar, ASTM B164 for Monel 400,
ASTM B166 for Inconel 600, ASTM B446 for Inconel 625, ASTM B574 for
Hastelloy C276, ASTM B564 for nickel alloy forgings, and ASTM F467/F468
for nickel alloy nuts and bolts. The applicable standard depends on the
specific alloy, product form, and project requirements.
Why is grade selection important for nickel alloy
fasteners?
Different nickel alloys are designed to address
different corrosion mechanisms, temperature ranges, and mechanical
requirements. Selecting the wrong grade may result in premature corrosion,
joint failure, or inadequate mechanical performance. The correct fastener
grade should be selected based on the complete service environment
including process chemistry, chloride content, operating temperature,
pressure, and mechanical loading rather than based on strength or cost
alone.
Can you supply material test certificates with nickel alloy
fasteners?
Yes. Nickel Alloy Fasteners can be supplied with
applicable Material Test Certificates (MTCs), chemical analysis,
mechanical test results, PMI reports, dimensional inspection reports,
heat-treatment records, and third-party inspection documentation as
required by the project specification.
Request a Quote
Request a Quote for Nickel Alloy Fasteners
Looking for a Nickel Alloy Fastener Stockist in India for your
chemical processing, offshore, marine, oil and gas, power
generation, or high-temperature industrial requirements? Contact
Metal-Link Steel & Alloys with your required fastener type,
material grade, diameter, length, thread type, applicable standard,
quantity, operating environment, temperature requirements, testing
requirements and documentation requirements for availability and
project-specific pricing.
