This standard specifies the contents for type classification, technical requirements, and the test method and test rules of Low alloy steel covered electrodes.
This national standard is applicable to low alloy steel covered electrodes for manual electric arc welding with coating.
1. Subject content and application scope
2. Normative standards
3. Classification
3.1 Type classification principle
3.2 Type establishment method
3.3 Electrode type examples listed in this national standard is as follows:
4. Technical specifications
4.1 Dimension
4.2 Coating
4.3 T-piece fillet weld
4.4 Chemical composition of deposited metal
4.5 Mechanical properties
4.6 Radiographic inspection for welding seam
4.7 Moisture content in coating and diffusible hydrogen content in deposited metal
5. Test method
5.1 Parent metal for the test
5.2 Electrode drying and welding current kind
5.3 T-piece fillet weld test
5.4 Chemical analysis of deposited metal
5.5 Mechanical testing
5.6 Radiographic inspection test for the welding seam
5.7 Electrode coating moisture content test
5.8 Test for diffusible hydrogen content in deposited metal
5.9 Porosity test
6. Inspection rules
6.1 Batch partition
6.2 Sampling method for electrode
6.3 Acceptance
6.4 Recheck
7. Packaging, marking and quality certificate
7.1 Packaging
7.2 Marking
7.3 Quality certificate
Annex A Concisely Represent for Relevant Provisions of Low Alloy Steel Covered Electrodes Standard (Normative)
Annex B Improvement in Coating Moisture Content Test Facility (Normative)
Additional Explanations:
