IS 6902: 1973
Steel and Iron - Specification for Steel Wire for spokes.
Summry
Steel wire for spokes is a high-strength, uniform-diameter wire specially manufactured for use in bicycle, motorcycle, and similar wheel spokes. It offers good tensile strength, fatigue resistance, and surface finish to withstand continuous load, vibration, and rotational stress during vehicle operation.
Why BIS Certificate is Mandatory for Specification for Steel Wire for spokes. ?
BIS certification is mandatory to ensure steel wire for spokes meets Indian Standards for strength, ductility, diameter accuracy, and surface quality. Certification prevents failures such as breakage or deformation, ensures rider safety, promotes uniform quality, and restricts the use of substandard materials in critical wheel components.
What is BIS Certified for Specification for Steel Wire for spokes. ?
The BIS certified specification defines chemical composition, tensile strength, elongation, dimensional tolerances, and surface finish for steel wire used in spokes. It also prescribes testing methods, inspection criteria, and marking requirements to ensure consistent performance, durability, and safe application in wheels.
Test required for Specification for Steel Wire for spokes.
| Title | Mandatory/Optional |
|---|---|
| Galvanized Coating on Steel Wire | Required |
| Chemical Composition | Required |
| Tensile Test | Required |
| Bend Test | Required |
| Freedom from defects | Required |
| Wire Diameter and Tolerances | Required |
| Variation on diameter of wire | Required |
Benefits of BIS Certification for Specification for Steel Wire for spokes.
1. Safety Assurance BIS-certified steel wire ensures adequate tensile strength and fatigue resistance, reducing the risk of spoke failure during riding.
2. Consistent Quality Certification enforces uniform diameter, smooth surface finish, and controlled properties, improving wheel balance and performance.
3. Longer Service Life BIS compliance enhances corrosion resistance and durability, minimizing frequent replacements and maintenance.
4. Regulatory Compliance BIS certification is legally required in India, allowing manufacturers and importers to sell products without legal complications.
5. Market Trust and Acceptance BIS-marked steel wire gains confidence from OEMs, assemblers, and consumers, increasing brand value and competitiveness in the bicycle and automotive market.