Home > Nickel Pipes & Tubes, Nickel Alloy Pipes & TubesNickel Alloy 20 Pipes & Tubes (Incoloy Alloy 020 Tube)
Material Description
UNS N08020
Chemical Composition, %
Ni
Fe
Cr
Cu
Mo
Nb
C
Mn
P
S
Si
32.0-38.0
Bal.
19.0-21.0
3.0-4.0
2.0-3.0
1.0 max
.07 max
2.0 max
.045 max
.035 max
1.0 max
Nickel alloy 20 (Incoloy Alloy 020) is a nickel-iron-chromium
austenitic alloy that was developed for maximum resistance to acid
attack, specifically sulfuric acid. It has excellent resistance to
general corrosion, pitting, and crevice corrosion in chemicals
containing chlorides and sulfuric, phosphoric, and nitric acids. It also
contains niobium for stabilization against sensitization and resultant
intergranular corrosion. Nickel alloy 20 combines excellent corrosion
resistance with elevated mechanical properties and relatively easy
fabrication. Although originally designed for use in sulfuric acid
related industries, nickel alloy 20 is now a popular choice for a wide
variety of industries including the chemical, food, pharmaceutical, and
plastics industries. In addition, it is used in heat exchangers, mixing
tanks, metal cleaning and pickling equipment, and piping.
Characteristics
● Excellent general corrosion resistance to sulfuric acid
● Excellent resistance to chloride stress corrosion cracking
● Excellent mechanical properties and fabricability
● Minimal carbide precipitation during welding
● Excels in resisting corrosion to hot sulfuric acids
Application:
● Synthetic rubber manufacturing equipment
● Processing of pharmaceuticals, plastics and organic and heavy chemicals
● Tanks, piping, heat exchanger tubing, pumps, valves, and other process equipment
● Acid cleaning and pickling equipment
● Chemical process piping, reactor vessels
● Bubble caps
● Tubing in petrochemical process equipment
● Food and dye production
Seamless Tube Information
Specification: ASTM B-729 / ASME SB-729
Outside Diameter: 6.0-114 mm
Wall Thickness: 0.5-15 mm
Length: Max.24000mm (the maximum length is for the scope of special diameters and walls)
Other sizes are on the request
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