GB/T 4009
GB/T 4009 (Chromium silicon)· GB (China) · 10 materials
| Designation | Material group | |
|---|---|---|
| FeCr30Si40-A Class I | Silicon | chevron_right |
| FeCr30Si40-A Class II | Silicon | chevron_right |
| FeCr30Si40-B Class I | Silicon | chevron_right |
| FeCr30Si40-B Class II | Silicon | chevron_right |
| FeCr30Si40-C Class I | Silicon | chevron_right |
| FeCr30Si40-C Class II | Silicon | chevron_right |
| FeCr30Si40-D Class I | Silicon | chevron_right |
| FeCr30Si40-D Class II | Silicon | chevron_right |
| FeCr32Si35 Class I | Silicon | chevron_right |
| FeCr32Si35 Class II | Silicon | chevron_right |