PROPRIETARY Alloy 718 Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2025-02
Total number of updates: 7
Update History

This material has 766 properties — only a subset is shown here.

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PROPRIETARY Alloy 718 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.2 – 0.8
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
≤ 0.006
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
≤ 0.08
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
val1
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UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
val1
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UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Nb+Ta
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Ni+Co
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

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PROPRIETARY Alloy 718 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
185 — 208.8 GPa
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Electrical Resistivity
val1
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Ω∙mm²/m
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Density
val1
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kg/dm³
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Heat Capacity
val1
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J/(kg∙°C)
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Thermal Conductivity
val1
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W/(m∙°C)
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Dynamic Modulus of Elasticity
val1
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GPa
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Electrical Conductivity
val1
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S/m
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Melting Temperature
val1
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°C
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Poisson Coefficient
val1
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Shear Modulus
val1
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GPa
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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This material has 766 properties — only a subset is shown here.

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PROPRIETARY Alloy 718 Heat Treatments

  • Melting can be undertaken by Electric Arc Furnace, followed by Argon Oxygen Decarburisation or Vacuum Oxygen Decarbonisation and then Vacuum Arc Remelting or Electro Slag Refining. Alternatively, melting by Vacuum Induction Melting followed by further refinement by Electro Slag Refining or Vacuum Arc Remelting is allowed.
    Solution treatment shall be carried out at a temperature between 1021 - 1052°C for 1-2 hours. This will be followed by immediate quench (water, oil, polymer or inert gas). Age hardening will follow one of the following schedules:
    a. 827 MPa : 775 - 800°C for 6-8 hours followed by immediate quench
    b. 965 MPa : 760 - 800°C for 6-8 hours followed by immediate quench
  • The alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. Anneal 927-1010°C (1700 -1850°F), air cool or faster. Age 718°C (1325°F) 8 hours, furnace cool to hold at 621°C (1150°F), for a total aging time of 18 hours, air cool. Alloy 718 will show a contraction of 0.0008 inch/inch after precipitation hardening.

PROPRIETARY Alloy 718 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 931 MPa
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Brinell Hardness (HB)
val1
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Elongation, A
val1
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%
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
val1
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MPa
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Reduction of Area
val1
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%
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PROPRIETARY Alloy 718 International Equivalent Materials

Showing 15 of 156 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
Inconel alloy 718
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 1014 N07718
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
H07718
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SB-637 N07718
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
ERNiFeCr-2
STANDARD
AWS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
NS4301
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
NiCr19Fe19Nb5Mo3
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Implicit
MATERIAL
B 983 N07718
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
NW7718
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Implicit
MATERIAL
VDM alloy 718
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Nistelle 718
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
HAYNES 718
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
ALTEMP 718
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Pyromet Alloy 718
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Inconel 718
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 156Cross References
  • 61Composition
  • 121Mechanical Properties
  • 267Physical Properties
  • 9Heat Treatment
  • 5Metallography
  • -Machinability
  • 8Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 1Creep
  • 1Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • 20Irradiation
  • 117Total Suppliers