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UNS N08020 Acid-Resistant Efficient Seamless Pipe for Chemical Processes

Alloy 020 has excellent resistance in chemicals containing sulfuric acid, and has good resistance to environments containing chlorides, phosphoric acid and nitric acid. It contains niobium for stabilization against sensitization and resultant intergranular corrosion. It also has good mechanical properties and fabricability.
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Overview


UNS N08020 Seamless Pipe is a specialized alloy pipe engineered to provide optimal performance in highly acidic environments. Made from a nickel-iron-chromium alloy with strategic additions of copper and molybdenum, this seamless pipe is designed to combat the corrosive effects of various acids. Its seamless structure ensures uniform wall thickness and consistent strength, enhancing its reliability in demanding chemical processing applications.


Features


The defining characteristic of UNS N08020 seamless pipe is its exceptional resistance to sulfuric acid and other reducing acids. The alloy's unique composition enables it to form a stable passive film in acidic media, effectively preventing pitting and crevice corrosion. It also demonstrates excellent resistance to stress corrosion cracking and intergranular corrosion, making it suitable for long-term exposure to corrosive chemicals. The pipe maintains good mechanical properties across a broad temperature range, from ambient to moderately high temperatures. Its good formability and weldability allow for easy fabrication into various shapes and sizes, facilitating installation in different chemical processing setups.


Application


In the chemical industry, UNS N08020 seamless pipe is extensively used for transporting and processing sulfuric acid, phosphoric acid, and other aggressive chemicals. It is a key component in fertilizer plants for pipelines and equipment handling acidic solutions. In the pickling industry, it is employed for pickling baths and related equipment, withstanding the harsh acidic environment. The pipe is also suitable for use in the pharmaceutical and food processing industries, where corrosion resistance and hygiene are paramount. Furthermore, it finds applications in the energy sector for pipelines carrying acidic gas streams, ensuring safe and efficient transportation.


Why Choose Us


Selecting our company for UNS N08020 Seamless Pipe means choosing quality and reliability. We source only the highest-grade raw materials to ensure the purity and consistency of our products. Our manufacturing facilities are equipped with modern machinery and automated processes for precise production. We have a comprehensive quality management system in place, which includes rigorous inspection at every stage of production. Our team of experts has in-depth knowledge of the alloy's properties and applications, enabling us to offer valuable technical advice and support. With competitive pricing and efficient logistics services, we ensure timely delivery of our products to meet your project deadlines.


Seamless Pipe
Seamless Pipe
Seamless Pipe


Chemical Composition

%

Fe

Ni

Cr

Cu

Mo

Mn

Si

C

Nb+Ta

P

S

MIN

BALANCE

32.00

19.00

3.00

2.00




8*C



MAX

38.00

21.00

4.00

3.00

2.00

1.00

0.07

1.00

0.05

0.04


Specification

Physical Properties

Seamless pipe and tube

ASTM B 729, B 829

DENSITY

8.08g/cm3

MELTING RANGE

1357-1430℃


Specifications Of UNS N08020 Seamless Pipe

OD: 1mm-325mm

WALL THICKNESS:  0.2mm-20mm

Max Length:12m (Special specifications are available as required)


Production Processes

Seamless Pipe

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