Engineering

A Nickel-Chromium-Molybdenum alloy with better overall resistance and versatility than any other NiCrMo available. It has excellent resistance to localised corrosion and to a variety of mixed industrial chemicals. Hastelloy C-22 is used in severely corrosive media involving high chloride and temperature applications such as buffer solutions, active pharmaceutical ingredients (API), fabric softeners, cleaning supplies, and condiments such as soy and chili sauce. Like other nickel alloys, Hastelloy C-22 is extremely ductile, exhibits exceptional weldability, and can easily be fabricated into industrial components. Hastelloy C-22 is also known as Nicrofer 5621, Superimphy C22, and Inconel 622.

This Nickel-Chromium-Molybdenum alloy tolerates high temperatures and gives a design freedom in areas where weld geometry makes excessive heat build-up unavoidable. Resistance to general and localised corrosion and stress corrosion cracking is generally similar to Hastelloy C-276. With its high contents of Chromium and Molybdenum, Hastelloy C-4 is able to withstand both oxidizing and non-oxidizing acids, and is resistant to pitting and crevice attacks in the presence of chlorides and other halides. Like other nickel alloys, Hastelloy C-4 is ductile, easy to form and weld. Hastelloy C-4 is also known as Nicrofer 6616.

This Nickel-Molybdenum alloy gives excellent resistance to hydrochloric acid at all concentrations and temperatures from ambient to high. It also withstands sulphuric, acetic, formic and phosphoric acids and other non-oxidizing media. B-3 also has excellent resistance to pitting corrosion and to stress-corrosion cracking. Hastelloy B-3 is not recommended in the presence of ferric or cupric salts. Like other nickel alloys, Hastelloy B-3 is ductile and can be formed and welded. It resists stress corrosion cracking in chloride-bearing solutions, and is able to withstand fluoride-bearing media and concentrated sulfuric acid, both of which result in damage to zirconium alloys.

Inconel® X750 is a Nickel-Chromium alloy made precipitation hardenable by additions of Aluminium and Titanium, having creep-rupture strength at high temperatures to about 700°C (1290°F). It is widely used for high temperature conditions but is not as strong as Nimonic 90, but Inconel® X750 also holds exceptional properties all the way down to cryogenic temperatures.

This Nickel-Chromium-Iron alloy has the same basic composition as Incoloy 800, but has significantly higher creep rupture strength, resultant from the close control of the carbon, aluminium and titanium contents. It has good strength and excellent resistance to oxidation and carburisation in high temperature atmospheres. It also resists corrosion in many aqueous environments. Incoloy® 800HT is also known as Nicrofer 3220 HP.

This Nickel-Iron-Chromium alloy has good strength and excellent resistance to oxidation and carburisation in high temperature atmospheres. Incoloy® 800 also resists corrosion in many aqueous environments, and has been used in some steam generation plants due to its resistance to stress cracking. Incoloy® 800 is also known as Nicrofer 3220, Nicrimphy 800, and Pyromet 800.

Nickel-Chromium alloy being precipitation hardenable and having high creep-rupture strength at high temperatures to about 700°C (1290°F). It has higher strength than Inconel® X-750 and better mechanical properties at lower temperatures than Nimonic 90 and Inconel® X-750. Inconel® 718 has exceptional weldability compared to the Nickel-base super alloys hardened by Aluminium and Titanium.

Nimonic® C-263 is an age-hardenable Nickel-Cobalt-Chromium-Molybdenum alloy designed for a combination of aged strength properties with exceptional fabrication characteristics. Nimonic® C-263 shows excellent intermediate temperature tensile ductility, and is typically used for applications such as aircraft turbine engine and land-based turbine applications. Nimonic® C-263 is also known as Nicrofer 5120 CoTi, Haynes 263, and Hastelloy C-263.

A Nickel-Chromium-Cobalt alloy being precipitation hardenable, having high stress-rupture strength and creep resistance at high temperatures up to about 950°C (1740°F). It is widely used and a well proven alloy in high temperature conditions. Some typical applications for Nimonic® 90 include turbine blades, discs, forgings, ring sections, hot-working tools and other extreme environments. Nimonic® 90 is also known as Superimphy 90, Pyromet 90, and Udimet 90.

Nimonic® 80A is a Nickel-Chromium alloy which is precipitation hardenable. It has largely been superseded by Nimonic 90 and Inconel X-750, but because of the low Cobalt content, it is still specified for nuclear applications. Nimonic® 80A performs well in applications where high temperature and continuous stress is a significant consideration. Beyond nuclear applications, it is traditionally used in applications such as gas turbines, as well as for exhaust valves in racing engines and spindles and fasteners for the motorsport sector. Nimonic® 80A is also known as Nicrofer 7520 Ti, Pyromet 80A, Superimphy 80A, and Udimet 80A.

A Nickel-Chromium-Molybdenum alloy with excellent corrosion resistance in a wide range of corrosive media, being especially resistant to pitting and crevice corrosion. Inconel® 625 provides resistance to stress corrosion cracking to chloride ions, making it a favourable choice for sea water applications. The alloy also provides commendable oxidation resistance, with its high strength a result of the stiffening combination of Molybdenum and Niobium on the alloy’s Nickel-Chromium base.

Nimonic® 75 is a Nickel-Chromium alloy with good corrosion and heat resistance, and contains Titanium and Carbon as additives. Initially used as turbine blades in the 1940s, Nimonic® 75 is readily fabricated and welded, and is now more regularly used in gas turbine engines, industrial furnaces and nuclear engineering. Nimonic® 75 is also known as Nicrofer 7520.