Short Description

Model No.: Custom-UNS-N07718-Pipe-L:768MM-OD:300MM

China Custom Pipe Manufacturer www.steeljrv.com offers Custom UNS N07718 Pipe, L:768MM OD:300MM.

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Key Specifications / Features

Type: UNS N07718 Pipe
Material: Nickel Alloy Inconel 718(UNS N07718/WNR. 2.4668)
Size:

A) OD:300MM
B) Thickness: SCH160S
07) Length: 768MM
Standard: Custom/Non-Standard
Ends: BW

custom uns n07718 pipe l768mm od300mm 0 - Custom UNS N07718 Pipe L:768MM OD:300MM custom uns n07718 pipe l768mm od300mm 1 - Custom UNS N07718 Pipe L:768MM OD:300MM

Chemical Composition, % of Nickel Alloy Inconel 718(UNS N07718/WNR. 2.4668)

Inconel
%
Ni
Cr
Fe
Mo
Nb
Co
C
Mn
Si
S
Cu
Al
Ti
718
Min.
50
17
balance
2.8
4.75
0.2
0.7
Max.
55
21
3.3
5.5
1
0.08
0.35
0.35
0.01
0.3
0.8
1.15

Physical Properties of Inconel 718

Typical physical properties of Inconel 718 are summarized in the table below.

Solution Treated Solution Treated and Aged
Density 0.296 lb/in3 (8.192 g/cm3) 0.297 lb/in3 (8.22 g/cm3)
Specific Gravity 8.19 8.22
Melting Range 2500-2600°F 1370-1430°C

Thermal Conductivity of Inconel 718

The thermal conductivity at various temperatures for Inconel 718 are given in the following table.

Temperature Range Co-Efficients
°C °F W/m.K Btu.ft/ft2.hr.°F
0-100 532-212 6.5 11.2

Mechanical Properties

The room temperature strength of the Inconel 718 alloy is substantially increased by precipitation heat treatment as the following data indicate. These values are properties specified for sheet, strip and plate in AMS 5596 and AMS 5597.

Yield Strength
Min
 (0.2% offset)
Ultimate Tensile Strength
Min
Elongation
(% in 2″)
Sheet and strip 80,000 psi (550 MPa) 140,000 psi (965 MPa) 30 (min)
Plate 105,000 psi (725 MPa) 150,000 psi (1,035 MPa) 30 (min)

Solution trated plus precipitation heat treated.

Yield Strength
Min
 (0.2% offset)
Ultimate Tensile Strength
Min
Elongation
(% in 2″)
150,000 (1,035 MPa) 180,000 psi (1,240 MPa) 12 (min)

Forging
Alloy 718 should be forged from a maximum furnace temperature of 2050ºF (1120ºC) and should not be soaked for an overly long time at this temperature. Uniform reductions during forging will prevent the formation of a duplex grain structure. Working in the range 1700/1850ºF (925/1010ºC) will improve the forging’s strength if its subsequent service temperature is below 1100ºF (595ºC.)
Heat Treatment
Heat treatments may be adjusted to give required properties. For the best combination of tensile and stress rupture properties, the following quite complex cycle is recommended :
1 hr at 1750/1800ºF (955/980ºC) and air cool, then 8 hrs at 1325ºF (720ºC) and cool at 100ºF/hr (56ºC/hr) to 1150ºF (620ºC), hold for 8 hrs and air cool.
For the best room temperature and cryogenic tensile properties, the cycle is :
1-2hrs at 1950ºF (1065ºC) and air cool, then 8 hrs at 1325ºF (720ºC) and cool at 100ºF/hr (56ºC/hr) to 1150ºF (620ºC), hold for 8 hrs and air cool.
Machinability
Inconel 718 may be readily machined in either the annealed or age-hardened conditions. The age-hardened condition gives a better surface finish, the annealed condition a longer tool life.
Weldability
The alloy may be welded in either the aged or annealed conditions. Welding an age-hardened material will result in the formation of a softened heat-affected zone.

Typical short time tensile properties of Inconel 718 as a function of temperature are shown here for material solution treated and aged as follows:

  • Solution Treatment: 1800°F (982°C) 1 hour.
  • Precipitation Treatment: 1325°F (718°C) 8 hours, Furnace Cool at 100°F (55°C) per hour to 1150°F (621°C) 8 hours.
Summary
custom uns n07718 pipe l768mm od300mm - Custom UNS N07718 Pipe L:768MM OD:300MM
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Brand Name
Yaang
Name
Custom UNS N07718 Pipe L:768MM OD:300MM
Price
USD 1-9999
Product Availability
Pre-Order Only

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