IS 1148 : 2021

Hot Rolled Carbon Steel Wire Rods for the Manufacture of Metal Arc Welding Electrodes

AWS A5.18
CurrentSpecializedSpecificationMaterials Science · Steel and Reinforcement
Summary

IS 1148 covers steel wire rods — the raw material for manufacturing welding electrodes (IS 814). Very low carbon (<0.10%) is critical because the core wire becomes the weld metal deposit. Clean surface and good drawability are essential for electrode manufacturing.

Specification for hot rolled low carbon steel wire rods used as core wire in manufacturing of coated metal arc welding electrodes.

Key Values
Carbon max0.10%
Manganese0.30-0.60%
Sulphur max0.030%
Practical Notes
! Carbon must be very low (<0.10%) — higher carbon causes porosity and cracking in welds.
! Surface must be free of rust and scale — contamination transfers to the weld deposit.
! Wire rods are drawn down to electrode core wire diameters (2.5, 3.15, 4.0, 5.0mm) before flux coating.
wire rodwelding electrodecore wirelow carbon steelelectrode manufacturing