DL/T 999-2006 - Standard for Graphitization Rating of 2.25Cr-1Mo Steel Balls for Power Stations

Author: None
Publisher:
Publish Date: 2006-09-01
Features: This standard is applicable to the evaluation of spheroidization grade for high-temperature components such as overheated steam pipes, headers, and steam conduits made of 2.25Cr－1Mo steel with metal wall temperatures below 570 degrees Celsius after long-term use under high-temperature conditions. The evaluation of spheroidization grade for heat-exposed surfaces of pipes made of similar materials with metal wall temperatures below 580 degrees Celsius may be referred to for implementation. Effective from 2006-10-01.