Foreword
Committees responsible
Specification
Section one. General
1.1 Scope
1.2 Symbols
1.3 Designation
Section two. Base tubes
2.1 Manufacture of the steel
2.2 Manufacture of the product
2.3 Chemical composition
2.4 Final supply condition
2.5 Mechanical properties
2.6 Hydraulic pressure
2.7 Finish
2.8 Dimensions
2.9 Tolerances
2.10 Straightness
2.11 Test certificates
2.12 Protection
Section three. Specially finished tubes (including
smooth drawn bore tubes)
3.1 General
3.2 Dimensions
3.3 Diametral tolerances
3.4 Straightness
3.5 Surface texture
Appendices
A. Information and requirements to be exchanged and
agreed between purchaser and manufacturer
B. Mechanical tests
C. Hydraulic pressure test
D. Preferred dimensions for tubes
Tables
1. Methods of manufacture
2. Steel grades, mechanical properties and delivery
conditions
3. Delivery conditions
4. Carbon equivalents
5. Notch impact properties
6. Diametral tolerances for cold finished seamless and
electric resistance welded tubes
7. Classes of tolerance for deviation from straightness
8. Surface texture values
9. Maximum depth of surface imperfections for tubes
with a smooth drawn bore surface
10. Preferred outside diameters for hot finished
seamless tubes
11. Preferred diameters for cylinder barrels made from
hot finished seamless tubes
12. Preferred dimensions for cylinder barrels made from
cold finished seamless and electric resistance
welded tubes
13. Preferred dimensions of finished tubes for telescopic
applications for use in the mining industry
Figures
1. Deviation from straightness for tubes shorter than
1000 mm