Seamless geosynthetic pipe knowledge DZ40 seamless pipe (50Mn steel pipe) Commonly used material grades, standards, specific use

Seamless geosynthetic pipe knowledge DZ40 seamless pipe (50Mn steel pipe) Commonly used material grades and standards for geological pipes, specific use purposes:
First: Geological Seamless Steel Pipe and Seamless Pipe for Geological Drilling (Execution Standard: YB235-70) is a steel pipe used by the geological department for core drilling. It is a long steel bar with a hollow section and no joints around it.
Second: Geological seamless steel pipe, steel for geological drilling seamless steel pipe "DZ" (geological Hanyu Pinyin prefix) plus the number one represents the steel yield point indicates the specific steel number commonly used are: (1.) DZ45 45MnB 50Mn; (2.) 40Mn2, 40Mn2Si of DZ50; (3.) 40Mn2Mo, 40MnVB of DZ55; (4.) 40MnMoB of DZ60 and 27MnMoVB of DZ65.
Third, seamless seamless steel pipes for geological exploration and seamless steel pipes for geological drilling are all delivered under heat treatment.

6000 Series Bearing

6000 Series Bearing,Ball Bearing 6000,6000 Ball Bearing,6000 Series Bearings

Dongyang City Shuangchi Bearing Co.,Ltd , https://www.zjscbearing.com