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ASTM G28 Intergranular Corrosion Test Specimens

ASTM G28 Intergranular Corrosion Test Specimens

Metal test specimens used in testing by ASTM G28 (Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys). These specimens can vary in size depending on the exact material and test equipment being used. ASTM G28 recommends a specimen surface area of 5 to 20 cm². Each specimen is polished with 120 grit. The specimens may be made from the following alloys:

  • N06007 Nickel
  • N06022 HASTELLOY Alloy 22 (C-22)
  • N06030 HASTELLOY G-30
  • N06059 Alloy 59 (nickel-chromium-molybdenum)
  • N06200 HASTELLOY C-2000
  • N06625 INCONEL 625
  • N06686 INCONEL 686
  • N06985 HASTELLOY G-3
  • N08020 Alloy 20
  • N08367 Super austenitic stainless steel
  • N08800 INCOLOY Alloy 800 (nickel-iron-chromium alloy)
  • N08825 INCOLOY Alloy 825 (austenitic nickel-iron-chromium alloy)
  • N10276 HASTELLOY C276

Customized test specimens for modified versions of this test are available on request.

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