TB/T 2255-1991
Metallography of high phosphorous cast iron (English Version)
- Standard No.
- TB/T 2255-1991
- Language
- Chinese, Available in English version
- Release Date
- 1992
- Published By
- Professional Standard - Railway
- Status
- 2018-05
- Replace By
- TB/T 3104.3-2017
- Latest
- TB/T 3104.3-2017
- Scope
- This standard specifies the use of optical microscopes to examine high-phosphorus cast iron graphite distribution shape, graphite length, pearlite lamellar spacing, ferrite quantity, phosphorus eutectic quantity, phosphorus eutectic mesh discontinuity, phosphorus eutectic distribution shape, phosphorus eutectic Evaluation methods of crystal type and metallographic abnormal structure, and list the rating chart. This standard is applicable to the microstructural examination of cast iron with a phosphorus content of 1.0~3.0%.
TB/T 2255-1991 history
- 2018 TB/T 3104.3-2017 Brake shoes for rolling stock - Part 3: Cast iron brake shoes
- 1992 TB/T 2255-1991 Metallography of high phosphorous cast iron
TB/T 2255-1991 Metallography of high phosphorous cast iron was changed to TB/T 3104.3-2017 Brake shoes for rolling stock - Part 3: Cast iron brake shoes.
