Nickel Alloy Fittings

These nickel alloy fittings are used extensively in applications where heat resistance and/or corrosion resistance is required. Nickel Alloy fittings in this class are designed to resist failure from both of these mechanisms. Nickel alloy fittings are not suitable for high temperature sulphur rich environments.This nickel alloy fittings 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 fittings 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 fittings.


E mail to Javico Industries for Nickel Alloy fittings


Nickel alloy fittings are used in many applications where they are subjected to harsh environments at high temperatures. Nickel alloys fittings 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 fittings found to have a profound effect on the thermal expansion of iron.


Types of Nickel Alloy Fittings

  • Nickel Alloy Screwed / Threaded Fittings.
  • Nickel Alloy Socket Weld Fittings.
  • Nickel Alloy O'let Fittings.
  • NIckel Alloy Butt Weld Pipe Fittings.
  • Nickel Alloy Instrumentations Tube Fittings.


Some high-temperature variants include:

  • Nickel Alloy 601 fittings - Lower nickel (61%) content with aluminum and silicon additions for improved oxidation and nitriding resistance.
  • Nickel Alloy X750 fittings - Aluminum and titanium additions for age hardening
  • Nickel Alloy 718 fittings -Titanium and niobium additions to overcome strainage cracking problems during welding and weld repair
  • Nickel Alloy X (48Ni-22Cr-18Fe-9Mo + W) fittings -High-temperature flat-rolled product for aerospace applications
  • Nickel Waspaloy (60Ni-19Cr-4Mo-3Ti-1.3Al) fittings - Proprietary alloy for jet engine applications
    Some corrosion-resistant variants in the Ni-Cr-Fe system include.
  • Nickel Alloy 625 fittings - 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) fittings -The increased molybdenum content in these alloys offers improved pitting and crevice corrosion resistance.
  • Nickel Alloy C-22 (Ni-22Cr-6Fe-14Mo-4W) fittings -Superior corrosion resistance in oxidizing acid chlorides, wet chlorine, and other severe corrosive environments.
  • Nickel Alloy C-276 (17% Mo plus 3.7W) fittings -Good seawater corrosion resistance and excellent pitting and crevice corrosion resistance.
  • Nickel Alloy 690 (27% Cr addition) fittings -Excellent oxidation and nitric acid resistance; specified for nuclear waste disposal by the vitreous encapsulation method.

    Iron-Nickel-Chromium Alloys fittings. This series of alloy fittings 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 fittings 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) fittings -The basic alloy in the Fe-Ni-Cr system; resistant to oxidation and carburization at elevated temperatures.
  • Nickel Alloy 800HT fittings -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 fittings -Increased titanium content (0.75 to 1.5%); exceptional resistance to polythionic acid cracking.
  • Nickel Alloy 802 fittings -High-carbon version (0.2 to 0.5%) for improved strength at high temperatures.
  • Nickel Alloy 825 (Fe-42Ni-21.5Cr-2Cu) fittings -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 fittings -Addition of titanium and aluminum to 825 composition for strengthening through age hardening.

Nickel Alloy Fittings key characteristics are:

  • Nickel Alloy fittings melting point, 1453 ºC
  • Resists corrosion and oxidation
  • Nickel Alloy fittings are very ductile
  • Nickel Alloy fittings alloys readily
  • Magnetic at room temperature
  • Can be deposited by electroplating
  • Nickel Alloy fittings has catalytic properties


Applications and Characteristics of Nickel Alloy Fittings

Nickel and nickel alloys 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
• Medical applications
• Nuclear power systems
• Chemical and petrochemical industries

A number of other applications for nickel alloy fittings 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

Chemical Symbol: Ni
Atomic Number: 28
Atomic Weight: 58.71
Melting Point: 1453 ºC
Boiling Point: 2730 ºC
Density: 8.90 g/cm3 at 25 ºC
Curie Temperature: 253 ºC

We are so precise in our quality and confident about our Quality Nickel alloy fittings that we can offer our it with any world known third party inspection and certifications.

manufacturers and suppliers of Nickel alloy fittings with Lloyds third party inspection service and certifications
manufacturers and suppliers of Nickel alloy fittings with SGS third party inspection service and certifications
manufacturers and suppliers of Nickel alloy fittings with BVQI third party inspection service and certifications
manufacturers and suppliers of Nickel alloy fittings with Indian registrar of Shipping third party inspection service and certifications
manufacturers and suppliers of Nickel alloy fittings with DNV third party inspection service and certifications



Marking on Nickel Alloy Fittings
All Nickel Alloy fittings are having marking with alloy name, Standard, Size, pressure class and heat number.


Countries where we can supply Nickel alloy fittings


We Welcomes Distributors for Nickel alloy fittings


All these Nickel Alloy fittings 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