This standard specifies the general specification of carbon structural steel and low alloy structural steel welding.
This standard is applicable to fusion welding.
This standard is applicable to the design, manufacture and acceptance of steel structural welding of the construction machinery and equipment.
Any welding without special requirements in product drawings or technical documents shall comply with the requirements of this standard.
This standard is not applicable to welding of pressure vessels and stainless steel structure.
Foreword i 1 Scope 2 Normative References 3 Definitions 4 Symbols 5 Technical Requirements 6 Inspection of Welding Parts 7 Transportation, Packaging, Marking and Storage Appendix A (Normative) Method for Measurement of Straightness, Planeness and Parallelism of Welding Parts