IS 15769:2008
Flux Cored (Tubular) Electrodes for Gas Shielded and Self-Shielded Metal Welding of Carbon or Carbon- Manganese Steel
1. Summary about Flux Cored (Tubular) Electrodes for Gas Shielded and Self-Shielded Metal Welding of Carbon or Carbon-Manganese Steel
Flux cored (tubular) electrodes are welding consumables used for joining carbon and carbon-manganese steels. They contain flux within a metal sheath and are designed for gas-shielded or self-shielded welding processes, offering high deposition rates and consistent weld quality in structural and industrial applications.
2. Why BIS Certificate is Mandatory for Flux Cored (Tubular) Electrodes
BIS certification is mandatory because welding electrodes directly affect joint strength and structural integrity. Substandard electrodes can cause weld defects, cracking, and catastrophic failures in fabricated structures.
3. What is BIS Certified for Flux Cored (Tubular) Electrodes
BIS certification confirms conformity with the applicable Indian Standard issued by the :contentReference[oaicite:0]{index=0} through testing of chemical composition, mechanical properties, weld metal performance, and manufacturing quality control.
Tests required for Flux Cored (Tubular) Electrodes
| Title | Mandatory/Optional |
|---|---|
| Manufacture (Freedom from defects) | Required |
| Sizes (External Diameter) of electrode | Required |
| Temper, Cast & Helix of flux cored (tubular) electrode | Required |
| Uniformity of flux cored (tubular) core | Required |
| Material and design of coils, spools and payoff packs, cleanliness of formers and packing | Required |
| Dimensions and maximum weight of coils with formers | Required |
| Dimensions and maximum weight of spools | Required |
| Overall diameter, height and maximum amount of electrode contained | Required |
| Winding requirements | Required |
4. Benefits of BIS Certification for Flux Cored (Tubular) Electrodes
- Ensures reliable weld strength and quality
- Mandatory for structural and industrial fabrication
- Reduces risk of weld failure
- Improves acceptance in regulated projects
- Enhances manufacturer credibility