Specifies the requirements for the production and supply of carbon and carbon-manganese steel tubes of round, square, rectangular or other non-circular cross-section produced by either cold-forming or hot-forming, and intended for use in mechanical applications.
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 Grade designation
5 Steel requirements
5.1 Steelmaking process
5.2 Chemical composition
5.2.1 General
5.2.2 Cast analysis
6 Freedom from defects
7 Removal of surface defects
8 Removal of upset
9 Manufacturing tolerances
9.1 Length
9.2 Cross-section
9.2.1 Circular tube
9.2.2 Rectangular or square tube
9.3 Thickness
9.4 Straightness
9.5 Twist (Non-circular sections)
10 Mechanical properties
10.1 Tensile test
10.2 Cold flattening test
11 Sampling for mechanical properties
11.1 General
11.2 Position of test specimens
11.2.1 Tensile test
11.2.2 Cold flattening test
11.3 Orientation of test specimens
11.3.1 Tensile test
11.3.2 Cold flattening test
12 Preparation of test pieces for mechanical testing
12.1 General
12.2 Tensile test piece
12.2.1 Form of test piece
12.2.2 Circular tube
12.2.3 Non-circular tube
12.3 Cold flattening test piece
13 Mechanical test methods
13.1 Tensile test
13.2 Cold flattening test
14 Retests for mechanical tests
15 Identification
16 Rounding of results obtained by inspection and testing
