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ASTM A890

1989 Edition, October 27, 1989

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STANDARD SPECIFICATION FOR CASTINGS, IRON- CHROMIUM-NICKEL- MOLYBDENUM CORROSION- RESISTANT, DUPLEX (AUSTENITIC/FERRITIC) FOR GENERAL APPLICATION



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Superseded By: ASTM A890/A890M

EN
Additional Comments:
W/D S/S BY ASTM A890/A890M
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Product Details:

  • Revision: 1989 Edition, October 27, 1989
  • Published Date: October 27, 1989
  • Status: Superseded By:
  • Superseded By: ASTM A890/A890M
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification covers a group of cast duplex stainless steels (austenitic/ferritic).

The duplex stainless steel alloys offer a combination of enhanced mechanical properties and corrosion resistance when properly balanced in composition and properly heat treated, Ferrite levels are not specified, but these alloys will develop a range of approximately 30 to 60 % ferrite with the balance austenite.

The values stated in either inch-pound units or metric (SI) units are to be regarded separately as standard. Within the text the metric (SI) units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.