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ASTM B729 is a specification developed by the American Society for Testing and Materials (ASTM) that covers the standard requirements for seamless UNS N08020 (Alloy 20) pipes and tubes. Alloy 20 is a high-nickel alloy known for its exceptional corrosion resistance in various environments, making it a popular choice for applications in chemical processing, petrochemical, pharmaceutical, food processing, and other industries where corrosion resistance is critical.

Valour Alloys Inc., we carry a full inventory of ASTM B729 Alloy 20 Pipe and Alloy 20 Pipe products is a a Alloy 20 Pipe with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. This Alloy 20 Pipe is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process application in an as welded condition.

We are specializes in ASTM B729 Alloy 20 Pipe with years of Experience in Manufacturing ASTM B729 Alloy 20 Pipe. we offer high quality, lower cost but the best service. As a result to that our ASTM B729 Alloy 20 Pipe export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.


ASTM B729 Alloy 20 Seamless Pipe Manufacturer

ASTM B729 Alloy 20 Seamless Pipe Manufacturer

ASTM B729 Alloy 20 Welded Pipe Exporter

ASTM B729 Alloy 20 Welded Pipe Exporter

1. Alloy 20 (UNS N08020): Alloy 20 is a nickel-chromium-molybdenum stainless steel alloy with excellent resistance to corrosion, particularly in acidic environments containing sulfuric acid, phosphoric acid, and nitric acid. This alloy also demonstrates good mechanical properties and is well-suited for high-temperature applications.

2. Seamless Pipes and Tubes: ASTM B729 specifically covers seamless pipes and tubes made from Alloy 20. The seamless manufacturing process ensures uniformity in composition and properties, making these pipes and tubes suitable for critical applications.

3. Corrosion Resistance: One of the primary advantages of Alloy 20 is its exceptional resistance to a wide range of corrosive environments, including acids, alkalis, and chloride-containing media. This property makes Alloy 20 pipes and tubes highly desirable for industries where corrosion is a constant concern.

4. Chemical Composition: ASTM B729 defines the chemical composition requirements of Alloy 20, ensuring that the alloy meets specific standards for elements like nickel, chromium, molybdenum, copper, and iron. These elements contribute to the alloy's corrosion resistance and other mechanical properties.

5. Dimensions and Tolerances: The specification details the dimensional requirements and tolerances for Alloy 20 pipes and tubes, ensuring they meet precise size and thickness specifications for various applications.

6. Mechanical Properties: ASTM B729 outlines the minimum mechanical properties, such as tensile strength, yield strength, and elongation, that Alloy 20 pipes and tubes must meet to ensure they can withstand the intended service conditions.

7. Heat Treatment: The specification may include requirements for heat treatment processes that pipes and tubes should undergo to achieve the desired properties.

8. Testing and Inspection: ASTM B729 provides guidelines for testing and inspection procedures to verify the quality and integrity of the Alloy 20 pipes and tubes. These tests may include hydrostatic testing, non-destructive testing, and other methods to ensure compliance with the specified standards.

ASTM B729 Alloy 20 Pipe is a high-quality, corrosion-resistant material used in various industrial applications where resistance to corrosive environments is crucial. Engineers and manufacturers rely on this ASTM specification to ensure the production of seamless Alloy 20 pipes and tubes that meet stringent quality and performance requirements.

ASTM B729 Alloy 20 Pipe Range

Specifications ASTM B 729 ASME SB 729 / ASTM B 464 ASME SB 464
Dimensions ASTM, ASME and API
Size 4 to 219mm W. T.: 0.5 to 20mm
Specialized in Large Diameter Size
Length Within 13500mm
Type Seamless / ERW / Welded / Fabricated
Form Round, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded

Chemical Composition of ASTM B729 Alloy 20 Pipe

Alloy 20 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

Mechanical Properties of ASTM B729 Alloy 20 Pipe

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
8.1 g/cm3 1443 °C (2430 °F) Psi – 35000 , MPa – 241 Psi – 80000 , MPa – 551 30 %

Equivalent Grades of ASTM B729 Alloy 20 Pipe

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
Alloy 20 N08020 2.4660 Z2NCUD31-20AZ NiCr20CuMo

Other Available Products of ASTM B729 Alloy 20 Pipe

Alloy 20 Seamless Pipes Alloy 20 Seamless Square Pipes
Carpenter 20 Seamless Pipes Alloy 20 Seamless Piping
ASTM B729 Alloy 20 Seamless Pipe B729 Alloy 20 Seamless Rectangular Pipe
ASME SB 729 Alloy 20 Seamless Pipes UNS N08020 Seamless Pipe
ASTM B729 Alloy 20 Seamless Round Pipes DIN 2.4660 Seamless Pipes

ASTM B729 Alloy 20 Pipe Application

  • Oil and Gas equipments
  • Offshore Technology
  • Seawater Desalination Plants
  • Chemical Industry
  • Airport, Malls, Buildings
  • Storage Tanks
  • Medical Industry
  • Civil Engineering
  • Pressure vessels, Reactor tanks, and Heat exchangers
  • Rotors, impellers and shafts
  • Power Plants
  • Petrochemical
  • Shipbuilding Industry
  • Mining Industry
  • Food Equipments Industry

Test Certificates

We ASTM B729 Alloy 20 Pipewith the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.

Quality Assurance

At ASTM B729 Alloy 20 Pipeall types of Such as P5, P9, P11, P22, P91, T5, T9, T11, T22, T91 from raw material purchase to production and product shipping. They are visually inspected for compliance with ASTM, ASME, DIN, EN and JIS codes and standards. We can also designate certified official testing agencies upon customer request so that they can witness the product's material, size and quality compliance reports.

Marking & Packing

Our ASTM B729 Alloy 20 Pipeis packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All ASTM B729 Alloy 20 Pipeare marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements

Supplying Alloy 20 Pipes to Countries -

We Export Alloy 20 Pipes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.

Distributing Alloy 20 Pipes to Cities -

We Export Alloy 20 Pipes to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.

Frequently Ask Questions (FAQ)

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