Nickel Alloy Fasteners are used extensively in applications
where heat resistance and/or corrosion resistance is required. Nickel
Alloy Fasteners Manufacturers and Suppliers in this class are designed
to resist failure from both of these mechanisms. Nickel alloy fasteners
are not suitable for high temperature sulphur rich environments.This
nickel alloy fasteners are frequently sold under trade name specifications
but most are listed in the Unified Numbering System. Common trade
names are HASTELLOY, INCOLOY, INCONEL, NICROFER, NICROM and NIMONIC. Nickel alloys fasteners have higher strength and
longer life at elevated temperature than most alloys. The designer
however, must determine the expected life of each component and use
the appropriate creep and rupture strength in the design before selecting
fasteners.
Nickel alloy fasteners are used
in many applications where they are subjected to harsh environments
at high temperatures. Nickel alloys fasteners offer excellent corrosion
resistance to a wide range of corrosive media. However, as with all
types of corrosion, many factors influence the rate of attack. Nickel
alloy fasteners found to have a profound effect on the thermal expansion
of iron.
Some high-temperature variants include:
Nickel Alloy 601 fasteners - Lower nickel (61%) content with aluminum
and silicon additions for improved oxidation and nitriding resistance.
Nickel Alloy X750 fasteners - Aluminum and titanium additions for
age hardening
Nickel Alloy 718 fasteners -Titanium and niobium additions to overcome
strainage cracking problems during welding and weld repair
Nickel Alloy X (48Ni-22Cr-18Fe-9Mo + W) fasteners -High-temperature
flat-rolled product for aerospace applications
Nickel Waspaloy (60Ni-19Cr-4Mo-3Ti-1.3Al) fasteners - Proprietary
alloy for jet engine applications
Some corrosion-resistant variants in the Ni-Cr-Fe system include.
Nickel Alloy 625 fasteners - The addition of 9% Mo plus 3% Nb offers
both high-temperature and wet corrosion resistance; resists pitting
and crevice corrosion.
Nickel Alloy G3/G30 (Ni-22Cr-19Fe-7Mo-2Cu) fasteners -The increased
molybdenum content in these alloys offers improved pitting and crevice
corrosion resistance.
Nickel Alloy C-22 (Ni-22Cr-6Fe-14Mo-4W) fasteners -Superior corrosion
resistance in oxidizing acid chlorides, wet chlorine, and other
severe corrosive environments.
Nickel Alloy C-276 (17% Mo plus 3.7W) fasteners -Good seawater corrosion
resistance and excellent pitting and crevice corrosion resistance.
Nickel Alloy 690 (27% Cr addition) fasteners -Excellent
oxidation and nitric acid resistance; specified for nuclear waste
disposal by the vitreous encapsulation method.
Iron-Nickel-Chromium Alloys fasteners. This series of alloy fasteners
has also found extensive use in the high-temperature petrochemical
environments, where sulfur-containing feedstocks (naphtha and
heavy oils) are cracked into component distillate parts. Not only
were these fasteners resistant to chloride-ion stress-corrosion cracking,
but they also offered resistance to polythionic acid cracking.
Some alloys of commercial importance include:
Nickel Alloy 800 (Fe-32Ni-21Cr) fasteners -The basic alloy in the
Fe-Ni-Cr system; resistant to oxidation and carburization at elevated
temperatures.
Nickel Alloy 800HT fasteners -Similar to 800H with further modification
to combined titanium and aluminum levels (0.85 to 1.2%) to ensure
optimum high-temperature properties.
Nickel Alloy 801 fasteners -Increased titanium content (0.75 to 1.5%);
exceptional resistance to polythionic acid cracking.
Nickel Alloy 802 fasteners -High-carbon version (0.2 to 0.5%) for
improved strength at high temperatures.
Nickel Alloy 825 (Fe-42Ni-21.5Cr-2Cu) fasteners -Stabilized with
titanium addition (0.6 to 1.2%). Also contains molybdenum (3%) for
pitting resistance in aqueous corrosion applications. Copper content
bestows resistance to sulfuric acid.
Nickel Alloy 925 fasteners -Addition of titanium and aluminum to
825 composition for strengthening through age hardening.
We are Manufacturers and Suppliers of Nickel Alloy Fasteners from
more then two decades and some of very common fasteners in nickel
alloy are mentioned below
Nickel Alloy Fasteners Manufacturers and Suppliers
of
Nickel Alloy Bolts
Nickel Alloy Hex Head Bolts
Nickel Alloy Hex Head Screws
Nickel Alloy Allen Head Bolts
Nickel Alloy Nib Head Bolts
Nickel Alloy Square Head Bolts
Nickel Alloy Fasteners Manufacturers and Suppliers
of
Nickel Alloy Nuts
Nickel Alloy Hex Nuts
Nickel Alloy Lock Nuts
Nickel Alloy Dom Nuts
Nickel Alloy Self Locking Nuts
Nickel Alloy Wing Nuts
Nickel Alloy Fasteners Manufacturers and Suppliers
of
Nickel Alloy Washers
Nickel Alloy Plain Washers
Nickel Alloy Spring Washers
Nickel Alloy Taper Wasgers
Nickel Alloy Fasteners Key Characteristics:
Nickel Alloy fasteners melting point, 1453 ºC
Nickel Alloy fasteners are Resists corrosion and oxidation
Nickel Alloy fasteners are very ductile
Nickel Alloy fasteners alloys readily
Magnetic at room temperature
Can be deposited by electroplating
Nickel Alloy fasteners has catalytic properties
Nickel Alloy Fasteners - Applications
Nickel Alloys Fasteners are used for a wide variety of applications,
the majority of which involve corrosion resistance and/or heat resistance.
Some of these include:
• Aircraft gas turbines
• Steam turbine power plants
• Hazardus Chemical Industries
• Nuclear power systems
• Chemical and petrochemical industries
A number of other applications for Nickel Alloy Fasteners Manufacturers and Suppliers involve the
unique physical properties of special-purpose nickel-base or high-nickel
alloys. These include:
• Low-expansion alloys
• Electrical resistance alloys
• Soft magnetic alloys
• Shape memory alloys
We are so precise in our quality and confident about our Quality
Nickel alloy fasteners that we can offer our it with any world known
third party inspection and certifications.
Lloyds
SGS
BVQI
IRS
DNV
Marking on Nickel Alloy Fasteners
Generally Nickel Alloy Fasteners are having very small surface especially
in small size, available for marking and that is why Grade and company
logo is there on each fastener., .
Nickel Alloy Fasteners Manufacturers and Suppliers
We Welcomes Distributors for Nickel alloy fasteners
All these Nickel Alloy fasteners are offered with a NACE 3.1 or 3.2
Mill Test Certification. Positive Material Identification (PMI) is
done on all raw material procured by us, irrelavent to quantity and
source of our supply.
Trade Names and Owners of Nickel Alloys
HASTELLOY is a registered trade name of Haynes Intl.
INCOLOY, INCONEL, MONEL and NIMONIC are registered trade names of
the INCO family of companies.
INVAR is a registered trademark of Imphy S.A.
MU-METAL is a registered trademark of Telcon Metals Ltd
NICORROS and NICROFER are registered tradenames of Krupp UM GmbH
