J&J Bar Plus

We stock over 18 material grades of stainless and nickel round bar including: 304/L, 316/L, 304H, 310S, 317L, 321H, Alloy 347H, Alloy 20, Alloy C-276, Duplex 2205, Super Duplex 2507, 254SMO, Alloy 200, Alloy 400, Alloy 600, Alloy 625, Alloy 800H/HP, Alloy 825.

Alloy 20

Description

   DOWNLOAD LINE CARD

Alloy 20 is one of the so-called “Super” stainless steels that was designed for maximum resistance to acid attack. Its nickel, chromium, molybdenum and copper content contribute to its overall resistance to chlorideon stress corrosion cracking and general pitting attack. The alloy is stabilized with columbium to minimize carbide precipitation during welding.

Design Features

  • 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
 

Typical Applications

  • Chemical and allied industries
  • Food and dye production
  • Heat exchangers
  • S02 scrubbers and other severe environments
  • Tanks
  • Pickling Racks
  • Valves
AVAILABILITY SPECS
Round Bar 0.5"-8.5"
TENSILE REQUIREMENTS
TENSILE STRENGTH (KSI) 80
YIELD STRENGTH (KSI) 35
ELONGATION 30% MIN.
C NB + TA CR CU FE MN MO NI P S SI
MAX 8X Carbon       MAX     MAX MAX MAX
0.07 1.0 19.0 - 21.0 3.0 - 4.0 BAL 2.0 2.0 - 3.0 32.0 - 38.0 0.045 0.035 1.0
CHEMICAL COMPOSITION %