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ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe

ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe

  • ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe
  • ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe
  • ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe
ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe
Produktdetails:
Place of Origin: China
Markenname: YUHONG
Zertifizierung: ABS , GL , DNV , NK , PED , AD2000 , GOST9941-81 , CCS , ISO 9001-2008
Model Number: ASTM B729 ALLOY20 (NO8020 / 2.4660)
Zahlung und Versand AGB:
Minimum Order Quantity: 1PC
Preis: Verhandelbar
Packaging Details: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time: Depends on quantity
Payment Terms: T/T, L/C AT SIGHT
Supply Ability: 50 tons per month
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Ausführliche Produkt-Beschreibung
Standard: ASTM B729/ASME SB729 Material Grade: ALLOY20 (NO8020 / 2.4660)
Surface: Pickled and Annealed, Bright Annealed, Polished Type of tube: Straight Tube
Alloy or not: Nickel Alloy Special type: Thick Wall Pipe
Hervorheben:

Seamles UNS NO8020 Pipe

,

ASTM B729 UNS NO8020 Pipe

,

UNS NO8020 Pipe

ASTM B729 ALLOY 20 / UNS NO8020 HASTELLOY SEAMLESS PIPE

 

 

ASTM B729 specifies the requirements for seamless pipes made from corrosion-resistant alloys, including Alloy 20 (UNS N08020). This material, classified as a nickel-iron-chromium (Ni-Fe-Cr) alloy, is specifically designed for superior corrosion resistance, especially in chemical processing environments.

 

 

Key Features of ASTM B729 Alloy 20 / UNS N08020 Pipes

  1. Corrosion Resistance:

    • Excellent resistance to sulfuric acid, nitric acid, and phosphoric acid.
    • High resistance to pitting, crevice corrosion, and chloride ion stress-corrosion cracking.
    • Ideal for environments containing strong oxidizers, organic acids, and reducing agents.
  2. High-Performance Material:

    • Enhanced mechanical strength due to its unique alloy composition.
    • Suitable for both cryogenic and elevated-temperature applications.
  3. Versatile Applications:

    • Commonly used in chemical, pharmaceutical, food processing, and marine industries.
    • Widely applied in heat exchangers, condensers, and storage tanks.

 

 

Alloy 20 Mechanical Properties

Density

Melting Range

Yield Stress (0.2%Offset)

Tensile Stress

Elongation

8.1 g/cm3

1443 °C (2430 °F)

Psi - 35000 , MPa - 241

Psi - 80000 , MPa - 551

30 %

 

 

B729 Alloy 20 Chemical Composition

Ni

C

Mo

Mn

Si

Fe

Cu

S

P

Cr

32 - 38

0.02 max

2 - 3

1 - 2

0.7 max

Bal

3 - 4

0.005 max

0.02 max

19 - 21

 

 

Manufacturing Specifications for ASTM B729 Seamless Pipes

  1. Standards & Dimensions:

    • Manufactured under ASTM B729 standards with precise dimensional tolerances.
    • Available in various sizes, wall thicknesses, and lengths as per project requirements.
  2. Production Process:

    • Pipes are produced by seamless hot-working methods and, if necessary, are cold-finished to achieve the desired mechanical properties and dimensions.
  3. Testing & Certification:

    • Includes hydrostatic testing, non-destructive testing (NDT), and chemical analysis to ensure compliance with ASTM standards.
    • Certified with material test reports (MTR) containing chemical and mechanical properties.

 

 

Application of Alloy 20

  • Chemical Industry: Acid tanks, piping systems, and reactors.
  • Petrochemical Plants: Heat exchangers and process piping.
  • Marine Applications: Seawater piping and desalination equipment.
  • Pharmaceutical Equipment: For sterile and non-reactive environments.

 

 

ASTM B729 ALLOY 20 / UNS NO8020 Hastelloy Seamless Pipe 0

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