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ISO 9327-4:1999

Current Revision

Steel forgings and rolled or forged bars for pressure purposes -- Technical delivery conditions -- Part 4: Weldable fine grain steels with high proof strength

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This part of ISO 9327 applies to forgings and rolled or forged bars in thicknesses up to 250 mm manufactured from fine grain steels (see NOTE) given in Table 1 and to be delivered according to the specifications given in ISO 9327-1.

The steels are classified into

  • room temperature grades (P...),
  • elevated temperature grades (PH...),
  • low temperature grades (PL...),
  • low and elevated temperature grades (PLH...).

This part of ISO 9327 covers the following data:

  • In Table 1 the limits for
    • the chemical composition according to the cast analysis;
    • the tensile properties at room temperature;
    • the indications on the usual heat treatment condition at the time of delivery;
  • in Table 2 the permissible product analysis tolerances on the limiting values given for the cast analysis;
  • in Table 3 the minimum impact energy values;
  • in Table 4 the minimum elevated temperature proof strength values.

SDO ISO: International Organization for Standardization
Document Number ISO 9327
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 17/SC 10
Publish Date Document Id Type View
Not Available ISO 9327-4:1999 Revision