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Inconel 718 plus UNS N07818 Precipitation Hardened Nickel-base Superalloy

Place of Origin China
Brand Name XUNSHI
Certification ISO9001:2015
Model Number N07818
Minimum Order Quantity 200kg
Price Negotiable
Packaging Details Plywood case
Delivery Time 45-60 days
Payment Terms T/T
Supply Ability 5000kg per month

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Product Details
UNS No. N07818 Equal Name ATI 718Plus, Allvac 718Plus
Spec AMS 5441, AMS 5442 Avialable Forms Ingot, Billet, Block, Forged Round Bar, Hot-rolled Shapes And Rectangles, Bar, Rod, Wire, Plate, Sheet, Strip, And Castings.
Density 8.25g/cm
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N07818 nickel superalloy


AMS 5442 nickel superalloy


nickel base superalloy

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Product Description


Inconel 718Plus alloy (UNS N07818) is a precipitation hardened nickel-base material that exhibits high temperature tensile strength and stress rupture performance. This alloy is designed to have the high temperature capability and thermal stability of Waspaloy alloy while retaining the processing characteristics of 718 alloy. It is double vacuum melted (VIM/ESR/VAR). This VIM/VAR process ensures excellent microcleanliness and tight compositional control. Triple melting, with electroslag remelting between the VIM and VAR operations, minimizes the possibility of macrosegregation, increases microcleanliness, and is preferred for premium quality jet engine rotating component applications. Inconel 718Plus alloy has at least a 100°F (55°C) operating temperature advantage over 718 alloy. 718Plus alloy also has advantages over Waspaloy and other higher temperature capable, nickel-base alloys due to its higher strength, superior formability, better wear resistance, and a resistance to weld cracking. 718Plus alloy is a lower cost option than Waspaloy or Rene 41 alloy due to its lower intrinsic raw materials cost and improved hot workability which provides higher material yields, resulting in a lower cost finished part.


Inconel 718 plus UNS N07818 Precipitation Hardened Nickel-base Superalloy 0Inconel 718 plus UNS N07818 Precipitation Hardened Nickel-base Superalloy 1

Chemical composition

Element C Mn Si P S Cr Ni Mo Nb Ti Al Co W B Cu Pb Bi Se Fe
Weight(%) 0.01-0.05 0.35 max 0.35 max 0.004-0.020 0.0025 max 17.00-21.00 Rem 2.50-3.10 5.20-5.80 0.50-1.00 1.20-1.70 8.00-10.00 0.80-1.40 0.003-0.008 0.30 max 0.0005 max 0.00003 max 0.0003 max 8.00-10.00



HRC 25 - 35(solution heat treated depending on quench rate) 

HRC 42 - 48(fully aged condition)

Tensile Strength, Ultimate   1480 MPa




These products have been typically used for parts requiring high resistance to creep and stress rupture up to 1400°F(760°C) and oxidation resistance up to 1800°F(982°C), but usage is not limited to such applications.


Available forms

718Plus alloy is available in all product forms: ingot, billet, block, forged round bar, hot-rolled shapes and rectangles, bar, rod, wire, plate, sheet, strip, and castings.

Inconel 718 plus UNS N07818 Precipitation Hardened Nickel-base Superalloy 2