IS 5139 : 2025 Repair of Cast Iron Castings by Oxy-Acetylene and Manual Metal Arc Welding - Recommendations
Revised Standard from Last Update.
1 SCOPE
1.1 This standard covers recommended procedures for repair of cast iron castings by welding.
1.2 Iron castings, referred in this standard, cover the following categories of cast iron castings:
- a) Grey cast iron;
- b) Low alloyed cast iron;
- c) Pearlitic cast iron;
- d) Malleable cast iron; and
- e) Nodular or ductile cast irons.
1.3 Section 1 of this standard describes general guidance on classification of defects, decision making for repairs, preparation of repairs, inspection before and after removal of defects and also after repair, etc. Section 2 describes the procedures for repair welding by gas welding process and Section 3 describes the procedures for repair welding by manual metal arc welding process.
2 REFERENCES
The standards listed in Annex A contain provisions which through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards.
ANNEX A
(Clause 2)
LIST OF REFERRED STANDARDS
| IS No. | Title |
| IS 1278 : 1972 | Specification for filler rods for gas welding (second revision) |
| IS 2595 : 2008 | Industrial radiographic testing — Code of practice (second revision) |
| IS 2953 : 1985 | Glossary of terms used for interpretation of welds and castings radiographs (first revision) |
| IS 3658 : 1999 | Code of practice for liquid penetrant flaw detection (second revision) |
| IS 5511 : 1991 | Covered electrodes for manual metal arc welding of cast iron — Specification (first revision) |
| IS 5334 : 2014 | Magnetic particle flaw detection of welds — Code of practice (third revision) |
| IS 8780 : 2004 | Non-destructive testing of steel castings — Code of practice (first revision) |