What is Inconel 718?

Is Inconel 718 a stainless steel?

    Inconel 718 is a precipitation-hardening nickel-chromium alloy containing significant amounts of iron, columbium, and molybdenum, along with lesser amounts of aluminum and titanium. Inconel 718 materials maintain high strength and good ductility up to 1300°F (704°C). This alloy has relatively good weldability, formability, and excellent cryogenic properties compared to other precipitation hardening nickel alloys. The sluggish precipitation hardening response of this alloy allows it to be readily welded without hardening or cracking. Inconel Alloy 718 is non-magnetic. It maintains good corrosion resistance and oxidation resistance and is used for parts requiring high resistance to creep and stress rupture up to 1300°F (704°C) and oxidation resistance up to 1800°F (982°C). 

Dose Inconel 718 rust?

The high nickel content of Inconel 718 makes the alloy have a relatively strong resistance to chloride stress cracking corrosion. At the same time, due to the presence of chromium, corrosion resistance is even better than pure nickel in the oxidizing environment.

Can Inconel 718 be welded?

Inconel 718 alloy has outstanding weldability in both age hardened or annealed condition. However, this alloy has high resistant to strain-age cracking yet this alloy has still weldability problems such as microfissuring and solidification cracking.

Inconel 718 Composition.

Inconel 718 material properties:

What is Inconel 718 used for?

★Chemical processing
★Aerospace
★Liquid fuel rocket motor components
★Pollution-control equipment
★Nuclear reactors
★Cryogenic storage tanks
★Valves, fasteners, springs, mandrels, tubing hangers
★Well head completion equipment and blow out preventers (BOP’s)
★Gas turbine engine parts

Why Inconel 718 is difficult to machine?

The properties of Inconel 718 (such as high hardness, high toughness, very poor thermal conductivity, work hardening, and the presence of highly abrasive carbide particles) make it difficult to machine in the process of constructing aircraft components using conventional methods.

What is Inconel 718 made of?

The alloy is made up of 50-55% nickel+cobalt (with cobalt limited to 1% max) and 17-21% chromium. This combination gives the material its corrosion-resistance properties. This includes good resistance to oxidation, enabling it to withstand corrosive media present in many of its applications.

What Rockwell is Inconel 718?

Alloy 718, often referred to as Inconel 718, is precipitation hardened to give maximum strength and high creep-stress rupture strength.

What is the difference between Inconel 718 and 825?

There are several critical differences between Inconel 718 and 825. First, Inconel 718 has a higher chromium content than Inconel 825, which gives it better corrosion resistance. Additionally, Inconel 718 can withstand higher temperatures than Inconel 825. Finally, Inconel 825 has better weldability than Inconel 718

What is the difference between Inconel 718 and 625?

Alloy 625 is primarily nickel-based, whilst Alloy 718 is nickel + cobalt (Ni+Co) based. The use of nickel + cobalt in Alloy 718 means that it has greater hardness and strength. Alloy 625, on the other hand, has higher levels of chromium and molybdenum, so it is more corrosion-resistant.

What are the limitations of Inconel 718?

Inconel 718, also a Limited Aptitude For Investment Casting The high mechanical strength and hardness of Inconel 718 limit its formability, even at hot temperature.

What is the Inconel 718 price per KG?

The Inconel 718 price is different.  Pipe, round bar, and sheet price are all difference. Please contact the sales team for the detail Inconel 718 price.