Nickel Alloy 20

UNS NO8020

Availability

  • Seamless Pipe 1/4″ – 8″
  • Weld Pipe 1/2″ – 24″
  • Butt-Weld Fittings 1/2″ – 24″
  • Flanges 1/2″ – 24″
  • Pressure Fittings 1/4″ – 2″

  • 150# Fittings 1/4″ – 2″
  • Tubing 1/4″ – 1″
  • Valves 1/2″ – 12″
  • Bar 1/8″ – 11″
  • Plate 1/8″ – 3″

Specifications

  • ASTM B729, B464, B366, B473, B462
  • ASME SB729, SB464, SB366, SB473, SB462

Chemical Composition

C Cb Cr Cu Mn Mo Ni P S Si Ta
Max 8 Times Max Max Max Max 8 Times
0.07 Carbon – 1.00 19.0 – 21.0 3.30 – 4.0 2.0 2.0 – 3.0 32.0 – 38.0 0.045 0.035 1.0 Carbon – 1.00

Everything You Need to Know About Alloy 20
Alloy 20 is a super alloy, sometimes referred to as Carpenter 20, which essentially combines stainless steel (iron and chromium) with nickel. In laymen’s terms, alloy 20 mixes structural integrity and corrosion resistance with a high level of malleability.

James Duva, Inc. is an alloy 20 distributor that supplies hard-to-find materials to manufacturers worldwide. Our team locates the highest quality specialty alloys and ships them across North America, Europe, and Asia.

Our founder, James Duva, worked in the nuclear industry. He brings 40 years of experience and unrivaled expertise when it comes to choosing materials. As a result, our company pays attention to the smallest detail. We maintain a fully stocked inventory of specialty alloys, provide exceptional customer service, and deliver our products as quickly as possible.

Applications for Alloy 20
The nickel content in alloy 20 is very substantial. This means it could be considered both a nickel alloy and a type of stainless steel. It also means that alloy 20 has nearly unmatched resistance to corrosion and oxidation, especially at high temperatures. Its resistance makes it an ideal material for valves and pipes within:

  • power plants
  • oil and gas refineries
  • petrochemical processing
  • chemical plants
  • food processing

Located in central New Jersey, James Duva, Inc. has been providing rare alloys to American and international clientele since 1978. We are the most knowledgeable alloy 20 pipe distributor on the eastern seaboard.

  • Superior resistance to stress-corrosion cracking in boiling 20 to 40% sulfuric acid.
  • Excellent general corrosion resistance to sulfuric acid.
  • Excellent resistance to chloride stress corrosion cracking.
  • Excellent mechanical properties and fabricability.
  • Minimal carbide precipitation during welding.
  • Chemical and allied industries
  • Food and dye production
  • Heat exchangers
  • SO 2 scrubbers and other severe environments Tanks
  • Pickling racks Valves

Tensile Strength (KSI) 80
Yield Strength (KSI) 35
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.