Heat Exchangers Nickel Alloy Tube Astm B468 / Asme Sb468 Alloy 20 Uns N08020

ASTM B468/ASME SB468 ALLOY 20 UNS N08020 NICKEL ALLOY SEAMLESS TUBING

Description:

Alloy 20 is a nickel-chromium-molybdenum alloy developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical, food, pharmaceutical, power generation and plastics industries. Alloy 20 nickel tubing resists pitting and chloride ion corrosion and its copper content protects it from sulfuric acid.

Typical applications include tanks, piping, heat exchangers, pumps, valves.

Typical applications: pollution control, chemical processing, pulp and paper production, and waste treatment.

Alloy 20 is a nickel–chromium–molybdenum stainless steel alloy developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical, food, pharmaceutical, power generation, and plastics industries. Alloy 20 resists pitting and chloride ioncorrosion and its copper content protects it from sulfuric acid. Alloy 20 is not a stainless steel but a nickel alloy (ASTM). Alloy 20 is often chosen to solve stress corrosion cracking problems, which may occur with 316L stainless.

It is also known as Carpenter 20. Cast versions are designated CN7M.

Stock Size Range:

Specifications: ASTM B468, ASME SB468

Available tube product forms

Straight

Seamless

Typical Applications

Heat exchangers

Steam Generators

High temperature applications exposed to caustic solutions

Industries predominantly using this grade

Chemical processing

Nuclear and power

Oil and gas

What are the characteristics of Alloy 20?

• 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

Physical Properties (Room Temperature)

Spezilla specialise in manufacturing high quality precision stainless steel tube and other corrosion resistant alloy tubes that are designed to industry and customer specifications. Our products are manufactured to the highest quality standards and are very competitively priced. Our mission is to provide customized, flawless, reliable, and affordable corrosion resistant steel tubes to the world.

Tube Type: Welded, Welded & Drawn. Straight Length or Coils.

Tube Materials: Austenitic: 304, 304L, 316L, 321, 316Ti, 317L, 904L, 254 SMO;

1.4301, 1.4307, 1.4401, 1.4404, 1.4541, 1.4571, 1.4539, 1.4547;

Duplex: 2205, 2507; 1.4462, 1.4410;

Ferritic: 409, 439, 441, 444; 1.4512, 1.4510, 1.4509, 1.4521;

Nickel Alloy: 800, 800H, 800HT, 825, C276; 1.4876, 1.4958, 1.4959, 2.4858, 2.4819;

Titanium: Gr.1, Gr.2;

Tube Size: O.D. 4.00 - 38.10MM, W.T. 0.30 - 3.0MM.

Tube Finish: As Welded, Bright Annealed, Annealed & Pickled, Polished, Custom Cutting.

Tube Standards: ASTM A249, A268, A269, A270, A688, A789, B338;

EN 10217-7 TC1 & TC2, EN 10296-2, EN10357 etc.

Applications: Heat Exchangers, Food & Beverage, Heating Elements, Automative, Tube Manipulation etc.

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