Inconel 718 Special Alloy UNS N07718 High Temperature Alloys For Valves, Fasteners, Springs, Mandrels, Tubing Hangers

Product Description

Inconel Alloy 718 (UNS designation N07718) is a precipitation hardenable nickel-chromium alloy containing significant amounts of iron, niobium, and molybdenum along with lesser amounts of aluminum and titanium. It has good comprehensive properties in the temperature range of -253 to 700°C. The yield strength below 650°C ranks first among deformed super alloys. It also has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance and good processing performance, welding performance and long-term structural stability, and can manufacture various parts with complex shapes. In the aerospace, nuclear energy, and petroleum industries, it has been widely used in the above temperature range.

Similar Grade

Chemical Composition(%)

Physical Properties

Feature

Good mechanical properties - tensile, fatigue and creep-rupture.

Yield tensile strength, creep, and rupture strength properties are exceedingly high.

Highly resistant to chloride and sulfide stress corrosion cracking.

Resistant to aqueous corrosion and chloride ion stress corrosion cracking.

High temperature resistant.

Age-hardenable with a unique property of slow aging response that permits heating and cooling during annealing without the danger of cracking.

Excellent welding characteristics, resistant to postweld age cracking.

Specification Standard

Applications

· 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