2 sounds with tag Air hardening
  • Air hardening (fans)

    The sound of steel hardening using a forced-air quench (fans). Certain alloys harden fully if cooled by air of a temperature above their transformation...
  • Air hardening (pilgrim rolling)

    The sound of steel hardening after pilgrim rolling. After the termination of pilgrim rolling, certain alloys have to be air-cooled in steps based on rolling...