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Stainless Steel, Nickel Alloys, Alloy 20, Duplex 2205® and Super Duplex 2507®.
Pipe, Tubing, Fittings, Flanges, Bar, Plate and
Continuous Coil Tubing
We now offer Metric Tubing in Stainless Steel
We offer Tube Fittings by Hoke-Gyrolok®, Parker® and Swagelok®.
Alloy 20 Stainless Steel
UNS N08020
UNS N08020, also known as Alloy 20 is one of the “super” stainless steels developed for maximum resistance from acid attack, there are various uses for it in both the stainless and nickel industries. Alloy 20 falls between both the stainless and nickel categories, as it does contain characteristics of both. Alloy 20 is an austenitic nickel-iron-chromium based alloy with additions of copper and molybdenum. Its nickel content aids in its chloride and corrosion resistance. The addition of copper and molybdenum provides resistance to hostile environments, pitting and crevice corrosion. Chromium adds to its resistance of oxidizing environments, such as nitric acid, and columbium (or niobium) reduces the effects of carbide precipitation. It can be hot formed using the same forces required to hot work austenitic stainless steels. In terms of machinability, outstanding finishes are possible using the same set-up and process speeds used for austenitic stainless steels, such as Stainless Steels 316 or 317.
Pipe – Seamless and Welded
Tubing – Seamless and Welded
Continuous Coil Tubing – Seamless and Welded
Fittings – Butt Weld, Socket Weld
Flanges
½” Thru 12”
Schedules 10s, 40s, 80s and 160
Pressure Fittings - Threaded
1/4” Thru 2”
150#, 300#, 3000# and 6000#
Bar- Round, Flat and Hex
Plate and Sheet
Specifications
Pipe – ASTM/ASME A/SA729
Butt-Weld Fittings – ASTM/ASME A/SA 366
Flanges – ASTM/ASME A/SA 462
Pressure Fittings - A/SA 182, A/SA462
Chemical Composition %
C |
Cb |
Cr |
Cu |
Mn |
Mo |
Ni |
P |
S |
Si |
Ta |
Max |
8 times |
|
|
Max |
|
|
Max |
Max |
Max |
8 times |
0.07 |
Carbon-1.00 |
19.0-21.0 |
3.0-4.0 |
2.0 |
2.0-3.0 |
32.0-38.0 |
0.045 |
0.035 |
1.0 |
Carbon-1.00 |
The information above in not for design purposes or guaranteed.