Introduction
This nickel-chromium-molybdenum superalloy is used in hot section components of turbine blades, ducting systems, and engine exhaust systems. In fact, 50% of the materials used in aircraft and rocket engines are nickel-based superalloys.
Inconel 718 is mostly chosen by design engineers thanks to its high strength in extreme temperature conditions at both ends of the spectrum. It can be used in environments from cryogenic all the way up to 1300°F/704°C. Throughout this entire range it exhibits exceptionally high yield, tensile and creep-rupture properties. It also shows excellent tensile and impact strength.
The alloy is made up of 50-55% nickel+cobalt (with cobalt limited to 1% max) and 17-21% chromium. This combination gives the material its corrosion-resistance properties. This includes good resistance to oxidation, enabling it to withstand corrosive media present in many of its applications.
The remainder of the composition includes niobium+tantalum (4.75-5.5%), molybdenum (2.8-3.3%) and titanium (0.65-1.15%), plus other balancing elements. It's a potent and well-balanced combination of elements, responsible for the superalloy's desirable technical properties.
The material is age-hardenable with no significant detrimental effects. It responds slowly to being treated in this way, meaning that it can be annealed and welded without any spontaneous hardening during either heating or cooling.
Its room temperature strength is significantly improved by precipitation heat treatment, enabling it to withstand such extreme environments. Different heat treatment solutions are required, depending on the end use of the material - the method is different for either getting the best tensile and stress-rupture properties for high-temperature applications, or for maximising the benefits for use at room or cryogenic temperatures.
One of the outstanding features of INCONEL alloy 718 is that it is extremely versatile and easy to work with. It shows excellent welding characteristics, especially with regards to its resistance to post-weld cracking. In comparison to other nickel-based superalloys, particularly those hardened by aluminium or titanium, it is vastly superior.
Because it can be fabricated so readily and into increasingly complex parts, the material lends itself to high-performance applications.
Chemical components:
Characters:
Production status of nickel alloy tube:
Hot working condition (R)
Cold working condition (Y)
Annealing state (M)
Nickel alloy tube manufacturing process:
Hot forging
Hot rolled
Cold rolled
Annealing
Pickling
Applications of nickel tube/pipe:
Aerospace, power industry, chemical industry, water desalination, oil and gas...
INCONEL alloy 718 is often used within the aviation and aerospace industries. Engineers are constantly looking to improve the reliability and efficiency of engines, not to mention their longevity. Superalloys, and in particular alloy 718, are selected for their balance between cost and performance.
It's imperative to use materials that can retain their strength and resistance to corrosion in the hottest sections of these engines. The materials used are under challenging conditions, with both mechanical and atmospheric stresses to consider.
INCONEL alloy 718 is ideal for use in these circumstances. For example, it has been used in jet engine and high-speed airframe parts, including wheels, fasteners, instrumentation parts, bolts, spacers and buckets. It is also used to engineer components for liquid-fuelled rockets, rings and casings, as well as various formed sheet metal parts for turbine engines, both aircraft and land-based.
Available Grades of Nickel tube/pipe:
| American Standard |
ASTM 163 ASTM 165 ASTM B622 ASTM B167 |
| Chinese Standard |
GB/T2882-2005 |
Russia Stanadard |
ГОСТ 13548-2016 ГОСТ 13548-2016 ГОСТ 17217-2018 ТУ 48-21-783-85 |
Nickel tube/pipe Chemical Composition
| Grade |
Ni |
Cu |
Mo |
Fe |
Mn |
C |
Si |
S |
Cr |
Al |
Ti |
Co |
| |
Min |
Max |
|
|
Max |
Max |
Max |
Max |
|
Max |
|
Max |
| Nickel 200 |
99.0 |
0.25 |
/ |
0.40max |
0.35 |
0.15 |
0.35 |
0.01 |
/ |
/ |
/ |
/ |
| Nickel 201 |
99.0 |
0.25 |
/ |
0.40max |
0.35 |
0.02 |
0.35 |
0.01 |
/ |
/ |
/ |
/ |
| Monel 400 |
63 |
28-34 |
/ |
2.5max |
2.0 |
0.3 |
0.5 |
0.024 |
/ |
/ |
/ |
/ |
| Inconel 600 |
72 |
0.5 |
/ |
6-10 |
1.0 |
0.15 |
0.5 |
0.015 |
14-17 |
/ |
/ |
/ |
| Inconel 601 |
58-63 |
1.0 |
/ |
balance |
1.0 |
0.10 |
0.5 |
0.015 |
21-25 |
1-1.7 |
/ |
/ |
| Inconel 625 |
58 |
0.5 |
8.0-10.0 |
5.0max |
0.5 |
0.1 |
0.5 |
0.015 |
20-23 |
0.4 |
0.4 |
1.0 |
| Inconel 718 |
50-55 |
0.3 |
2.8-3.3 |
balance |
0.35 |
0.08 |
0.35 |
0.01 |
17-21 |
0.2-0.8 |
0.7-1.15 |
1 |
| Incoloy 800 |
30-35 |
0.75 |
/ |
35.9min |
1.5 |
0.05-0.
10 |
1.0 |
0.015 |
19-23 |
0.15-0.6 |
/ |
/ |
| Incoloy 825 |
38-46 |
1.5-3 |
2.5-3.5 |
22.min |
1.0 |
0.05 |
0.5 |
0.03 |
19.5-23.5 |
0.2 |
0.6-1.2 |
/ |
M
Mechanial Properties
| Grade |
Tensil Strength(MPa) |
Yeild Strength(MPa) |
Elongation% |
| Min |
Min |
| Nickel 200 |
329 |
103 |
40 |
| Nickel 201 |
345 |
83 |
40 |
| Monel 400 |
483 |
193 |
35 |
| Inconel 600 |
552 |
241 |
30 |
| Incone 601 |
552 |
207 |
30 |
| Inconel 625 |
827 |
414 |
30 |
| Inconel 718 |
965 |
550 |
30 |
| Inconel 800 |
517 |
207 |
30 |
| Inconel 801 |
586 |
241 |
30 |
Product Specification
| |
Bar |
Plate |
Sheet |
Pipe |
Wire |
| Diameter |
3-50mm |
|
|
6-150mm |
0.1-10mm |
| Thickness |
|
0.8mm-602mm |
0.01mm-4mm |
|
|
| Width |
|
800mm-4500mm |
500mm-1560mm |
|
|
| Length |
2000-5000mm |
800mm-4500mm |
1000-6000mm |
400-4000mm |
|
Outside
Diameter |
|
|
|
6-150mm |
|
| Wall Thickness |
|
|
|
0.8-8mm |
|
| Material |
Pure Nickel and Nickel alloy
|
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About us
Shenyang Bona Titanium Technology Co., Ltd is located in Shenyang, China. We are the manufacturer of non-ferrous.
We have strong technical force and complete equipment, excellent products, the completed equipment and standardized testing to ensure the reliability of the product quality and stability.
Our main products include titanium and titanium alloys, nickel and nickel alloys, zirconium and zirconium alloys, the common products such as rod/bar, plate/sheet, wire, tube/pipe. The others like Tees, fasteners, castings, machining parts, forgings, and also other goods made according to the customer's requirements.
We have a large stock of titanium bars, plates, lumps and rolled or forged flat materials. We offer our best price and best service to our customers that from all over the world.
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