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              You are here: Home » Products » Series » Inconel » Inconel 718
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              Inconel 718

              Inconel 718 is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures.

              Quantity:

              • Inconel 718
              • RONSCO
              • Alloy1996inconel718

              INCONEL 718

              ASTM B637, B 670, B 906

              UNS Number N07718

              NACE MR-01-75

              Other common names: Alloy 718, Haynes 718, Nicrofer 5219, Allvac 718, Altemp 718

              Inconel 718 is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This nickel alloy is used from cryogenic temperatures up to long term service at 1200° F. One of the distinguishing features of Inconel 718’s composition is the addition of niobium to permit age hardening which allows annealing and welding without spontaneous hardening during heating and cooling. The addition of niobium acts with the molybdenum to stiffen the alloy’s matrix and provide high strength without a strengthening heat treatment. Other popular nickel-chromium alloys are age hardened through the addition of aluminum and titanium. This nickel steel alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. This superalloy is used in a variety of industries such as aerospace, chemical processing, marine engineering, pollution-control equipment, and nuclear reactors.

              In what forms is Inconel 718?

              · Sheet

              · Plate

              · Bar

              · Wire

              What are the characteristics of Inconel 718?

              · 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

              Chemical Composition(%)

              Ni

              Fe

              Cr

              Cu

              Mo

              Nb

              C

              Mn

              50.00-55.00

              Remainder

              17.00-21.00

              .30 max

              2.80-3.30

              4.75-5.50

              .08 max

              .35 max

               

              P

              S

              Si

              Ti

              Al

              Co

              B


              .015 max

              .015 max

              .35 max

              .65-1.15

              .20-.80

              1.00 max

              .006 max


              In what applications is Inconel 718 used?

              · 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

              ASTM Specifications

              Sheet/Plate

              Bar

              Wire

              B670

              B637

              -

              Mechanical Properties
              Typical room temperature properties, 1800°F annealed condition

              Ultimate Tensile Strength, psi

              .2% Yield Strength psi

              Elongation %

              Hardness Rockwell B

              135,000

              70,000

              45

              100

               


              PH Stainless Steel
              17-4PH
              17-7PH
              15-5PH
              Contacts?
              Pones:+86-135-1749-7929
              / 0731-82250427
              Email:info@ronsteel.com
              Address: 1706, FuLi Building, NO.97, JiuCaiYuan Road, FuRong District, Changsha,Hunan, China

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