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

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

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

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Product Details:

Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008
Model Number: Alloy 20 UNS N08020

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: WOODEN BOXED
Delivery Time: 60 DAYS
Payment Terms: T/T, L/C
Supply Ability: 100 TONS / MONTH
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Detailed Product Description
Materials No.: Alloy 20 UNS N08020 Standard Specification: ASTM B468
OD: 25.4MM Thickness: 2.11MM / 0.083''
MTR.: MTC EN10204 3.1 Test Method: EDDY CURRENT

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–chromiummolybdenum 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:

 
OD: .125" - 1"  Wall: .010 - .065

 

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

 

Typical Chemical Composition %

 

Nickel 32.0-38.0
Chromium 19.0-21.0
Iron Remainder
Molybdenum 2.0-3.0
Sulfur .035 max
Carbon 0.07 max
Manganese 2.0 max
Silicon 1.00 max
Phosphorous .045 max
Copper 3.0-4.0
Nb+Ta 8 X C-1.0

Typical Mechanical Properties

 

Annealed KSI MPA
Yield Strength (0.2% offset) 35 ksi 241
Tensile Strength 80 ksi 551
     
Elongation % in 2" 30.0  

Physical Properties (Room Temperature)

Specific Heat (0-100°C) 427 J.kg-1.°K-1
Thermal Conductivity 9.4 W.m -1.°K-1
Thermal Expansion 11.2 mm/m/°C
Modulus Elasticity 221 GPa
Electrical Resistivity 1.30 μohm/cm
Density 8.89 g/cm3
 

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

Contact Details
Spezilla Tube Co., Ltd.

Contact Person: Anna Zheng

Tel: +8615221370790

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