Product Details
Nickel Alloy Inconel 718 Seamless Pipe UNS N07718 Solution Annealed
Tubes Petroleum
1. As a leading supplier & manufacturer in China, DINGSCO
supply cost-effective Inconel 718 Products.
2. INCONEL® alloy 718 (UNS N07718 / W.Nr. 2.4668) is a
high-strength, corrosion-resistant nickel chromium material used at
-423° to 1300°F.
The age-hardenable alloy can be readily fabricated, even into
complex parts. Its welding characteristics, especially its
resistance to postweld cracking, are outstanding.
3. The ease and economy with which INCONEL alloy 718 can be
fabricated, combined with good tensile, fatigue, creep, and rupture
strength, have resulted in its use in a wide range of applications.
Examples of these are components for liquid fueled rockets, rings,
casings and various formed sheet metal parts for aircraft and
land-based gas turbine engines, and cryogenic tankage. It is also
used for fasteners and instrumentation parts.
4. Mechanical Properties
- For most applications, INCONEL alloy 718 is specified as: solution
annealed and precipitation hardened (precipitation hardening, age
hardening, and precipitation heat treatment are synonymous terms).
- Alloy 718 is hardened by the precipitation of secondary phases
(e.g. gamma prime and gamma double-prime) into the metal matrix.
- The precipitation of these nickel- (aluminum, titanium, niobium)
phases is induced by heat treating in the temperature range of 1100
to 1500°F.
- For this metallurgical reaction to properly take place, the aging
constituents (aluminum, titanium, niobium) must be in solution
(dissolved in the matrix);
- if they are precipitated as some other phase or are combined in
some other form, they will not precipitate correctly and the full
strength of the alloy with not be realized.
- To perform this function, the material must first be solution heat
treated (solution annealed is a synonymous term).
5. Corrosion Resistance
- INCONEL alloy 718 has excellent corrosion resistance to many media.
This resistance, which is similar to that of other nickel-chromium
alloys, is a function of its composition.
- Nickel contributes to corrosion resistance in many inorganic and
organic, other than strongly oxidizing, compounds throughout wide
ranges of acidity and alkalinity.
- It also is useful in combating chloride-ion stress-corrosion
cracking. Chromium imparts an ability to withstand attack by
oxidizing media and sulfur compounds. Molybdenum is known to
contribute to resistance to pitting in many media.
6. Inconel 718 Standards
ASTM B983 | Seamless Pipe & Tube |
ASTM B637 | Bar and Forging |
ASTM B670 | Plate, Sheet and Strip |
ASTM B906 | Plate, Sheet and Strip |
SAE AMS 5662 | Bar and Forging |
SAE AMS 5663 | Bar and Forging |
SAE AMS 5664 | Bar and Forging |
SAE AMS 5832 | Welding Wire |
SAE AMS 5962 | Round Bar and Wire |
SAE AMS 5596 | Plate, Sheet and Strip |
SAE AMS 5597 | Plate, Sheet and Strip |
SAE AMS 5950 | Plate, Sheet and Strip |
SAE AMS 5589 | Seamless Tube |
SAE AMS 5590 | Seamless Tube |
AWS A5.14 ERNiFeCr-2 | Filler Metal |
7. Progress Processing
Company Profile
Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO)
specialized in Nickel Based Corrosion Resistant and High
Temperature alloys products which used in the world’s most
technically demanding industries and applications.
We have complete advanced technology facilities to produce best
quality alloys to meet exacting your specifications such as VIM
(Vacuum lnduction Melting) furnace to provide high purity
Alloys,ESR (Electro Slag Re-melting) furnace to enhances the
structure and purity of the Alloys, and CNC machining equipments
(Lathe, Wire cutting, Drilling,Milling) to provide high precision
finished products.
We are dedicated to providing our customers with best quality
products,fastest possible deliveries, most competitive prices of
Nickel Based Corrosion Resistant and High Temperature alloys in
bars,rods,forged flanges, valve parts, forged shapes (shafts,
discs, blocks, hubs,rings, cylinders and tailor shapes) according
to ASTM,ASME,API,AMS, NACE and other industry standards.
We can help you gain a competitive edge in the market by responding
to a rush quote in less than 24 hours and even complex requests for
price and delivery quotations are responded to within 48 hours.
