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China Factory Special Steel Nickel Alloy High Quality Inconel 718 for Petrochemical & Refinery

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.

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Model: Inconel 718
Brand: Ronsco
Code: Alloy1996inconel718

Ronsco Alloy 718 Parameter Table
Inconel® Alloy 718/Haynes 718/UNS NO7718/W.Nr.2.4668, NC19FeNb, NiCr19Fe19Nb5
Material Introduction
Inconel® Alloy 718 is a high-strength, corrosion-resistant, precipitation hardened Ni-Cr alloy containing niobium and molybdenum, which can be used at -423° to 1300°F. Its age-hardenable ability can be readily fabricated,even into complex parts. Its welding characteristics,especially its resistance to postweld cracking, are outstanding.

It has high strength, good toughness and corrosion resistance in high and low temperature environments at temperatures below 650 °C. The state can be solution treatment or precipitation hardening state.

Chemical Composition:
17.00 4.752.80 

0.20 0.65 

Max55.00 1.00 21.00 5.50 3.00 0.08 0.35 0.35 0.30 0.80 1.15 0.0150.0060.015 BAL
Forms & Specifications:
Seamless pipe/tube:
AMS 5589, AMS 5590
JIS H4552
DIN 17751
GE B50TF14
AMS 5596, AMS 5597
DIN 17750
GE B50TF14

Bar, Forging & Ring:
AMS 5662,AMS 5663,AMS 5664
JIS G4901, JIS H4553
DIN 17752
GE B50TF15
B50809D (Power Generation)
Components: ASME Case 2222-1

Bare welding electrodes and rods: ASME SFA 5.14

Welding Wire: AMS 5832

Other: AFNOR NC 19 Fe Nb,
MSRR 7115 and MSRR 7116
Physical Properties:
Annealed: 8.19 g/cm3(0.296 lb./in3)
Annealed and Aged: 8.22 g/cm3(0.297 lb./in3)
Melting Range: 1260-1336°C(2300-2437 °F)
Curie Temperature:
Annealed Material: <-196°C(<-320°F)
Annealed and Aged Material:-112°C(-170°F)
Permeability at 200 oersted and 70°F
Annealed Material: 1 .0013
Annealed and Aged Material: 1.0011
Steam turbine
Liquid fuel rocket
Cryogenic engineering
Acidic environment
Nuclear engineering                                                                                
Hot extrusion tool
Artificial satellite
Part of the spaceship
Nuclear reactor parts
Nuclear fuel spacers                                                                        
Offshore & Marine engineering
Mechanical Properties
Typical Room Temperture Properties,
1800°F Anneaded Condition
Tensile strength, ksi
Yield strength 0.2%, ksiElongation, %Hardness,
RockWell B
The advantage of Ronsco
1.Price lower than Europe, USA 20~30%.
2.Material remelt by VIM+ESR,100% quality guaranted.
3.Best Service: 0 payment if you test not ok. 
4.0 fee for UT, PT.
5.Low MOQ for new materials: 200kg.
6.Fast 20~30 days of lead time for new materials.

For More Information About INCONEL alloy 718 , please call +86 17708476248 or Send an Email to [[email protected]]

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