This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation, storage and other requirements for gray iron castings used in positive displacement compressors. This standard applies to gray iron castings with flake graphite cast in sand molds or in molds with thermal conductivity equivalent to that of sand molds.
JB/T 6431-1992 history
2013JB/T 6431-2013 Gray iron castings for displacement compressor.Specification
1992JB/T 6431-1992 Specification for grey iron castings of positive displacement compressor