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Heat Exchanger Tube ASME SB163 / SB167 UNS N06600 N06601 Nickel
Alloy Seamless Tube
Nickel Alloy Pipes: Benefits, Manufacturing & More...
600,601,625... Alloy Tube Nickel Alloy Pipes: Benefits,
Manufacturing & More Nickel alloy pipes are a popular choice
for many different projects. Let’s take a brief look at their
benefits, manufacturing process, grades and applications.
Benefits
Using nickel alloy pipe brings three primary advantages:
Resistance to Heat
Some nickel pipe alloys can endure very high temperatures, making
them advantageous in machinery or other environments where intense
heat is present.
Resistance to corrosion
Oxidation reactions cause corrosion. Nickel alloys have a slower
rate of oxidation than most metals, meaning they can resist
corrosion for longer.
Low Rate Of Expansion
Many nickel alloys pipes have either a low rate of thermal
expansion or a rate of thermal expansion that can be predicted very
accurately. This makes them desirable in high-temperature
environments where you need a uniform shape.
Manufacturing
Nickel alloy pipes are made with a complex manufacturing process
that begins with the purest materials. Contaminated materials would
lead to pipes without the beneficial properties mentioned above.
The stages of the manufacturing process include:
Throughout the process, quality control is maintained through a
wide range of statistical tests.
Grades
There are a number of different grades of nickel alloy pipes. Some
of the most popular include:
Nickel 625 Tubing
This grade is comprised of 20 to 30 percent chromium, which is a
greater amount than many other nickel alloys. It’s often found in
engine exhaust systems.
Nickel 600 Pipe
Nickel 600 offers a handful of unique benefits: it can be joined
with many different methods, it’s very workable, and it performs
well in very high and low temperatures.
Nickel 601 Pipe
Often used in high temperature environments, Nickel alloy pipe 601
has a high creep rupture strength and good mechanical strength.
Nickel 400 Tubing
Comprised of around 23% copper, Nickel 400 tubing is often used in
oil towers, crude petroleum stills, de-aerating heaters, marine
projects, heat exchangers, freshwater tanks and gas tanks.
Furthermore, it also performs very well in alkaline salt and salt
water.
Applications:
The beneficial properties of nickel alloys make them useful in a
wide variety of applications. These include:
Chemical Composition:
| Element | Nickel + Cobalt | Carbon | Silicon | Iron | Copper | Manganese | Chromium |
| Avg. Nominal % | 72.0 Min | 0.15 Max | 0.50 Max | 6.0 - 10.0 | 1.0 Max | 1.0 Max | 14.0 - 17.0 |
