IS 5139 : 1995 Repair of cast iron castings by oxy-acetlene and manual metal arc welding - Recommendations

1 Scope

1.1 This standard covers recommended procedures for repair ofcast iron castings by welding.

1.2 Iron castings, referred in this standard, cover thefollowing categories of cast iron castings:

i) Grey cast iron,

ii) Low alloyed cast iron,

iii) Pearlitic cast iron,

iv) Malleable cast iron, and

v) Nodular or ductile cast irons.

1.3 Section 1 of this standard describes general guidance onclassification of defects, decision making for repairs, preparationof repairs, inspection before and after removal of defects and alsoafter repair, etc. Section 2 describes the procedures for repairwelding by gas welding process and Section 3 describes theprocedures for repair welding by manual metal arc welding process.

2 References

IS 1278 : 1972 Fillerrods and wires for gas welding

IS 2595 : 1978 Codeof practice for radiographic testing

IS 2953 : 1985Glossary of terms used for interpretation of welds andcastings radiograph

IS 3658 : 1981 Codeof practice for liquid penetrant flaw detection

IS 5334 : 1981 Codeof practice for magnetic particle flaw detection ofwelds

IS 5511 : 1991Covered electrodes for manual metal arc welding of castiron

IS 8780 : 1978 Codeof practice for non-destructive testing of steelcastings