This standard specifies the dimension, appearance, weight, technical requirements, test methods, inspection rules, packing, marking and quality certificate with regards to the hot-rolled seamless steel tubes for hydraulic pillar service.
This standard is applicable to hot-rolled seamless steel tubes for cylinder and pillar service for manufacturing coal mine hydraulic support and pillar. Other hot-rolled seamless steel tubes for hydraulic cylinder and pillar service may refer to this standard.
Foreword I
1 Scope 1
2 Normative References 1
3 Order Contents 3
4 Dimension, Appearance and Weight 3
5 Technical Requirements 4
6 Inspection and Test Method 9
7 Inspection Rules 10
8 Packing, Marking and Quality Certification 10
