IS 17111: 2019 (ISO 683- 17: 2014)
Steel and Iron - Heat-Treated Steels Alloy and Free-Cutting Steels — Ball and Roller Bearing Steels.
Summry
Heat-treated alloy and free-cutting steels for ball and roller bearings are high-quality steels specially designed to provide high hardness, wear resistance, and fatigue strength. After heat treatment, these steels ensure smooth rotation, load-bearing capacity, and long service life in bearings used in automotive and industrial machinery.
Why BIS Certificate is Mandatory for Heat-Treated Steels Alloy and Free-Cutting Steels — Ball and Roller Bearing Steels. ?
BIS certification is mandatory to ensure bearing steels comply with Indian Standards for chemical composition, cleanliness, heat-treatment response, and mechanical properties. Bearings are safety-critical components; substandard steel can cause premature failure. BIS certification protects users, ensures reliability, and maintains uniform quality in manufacturing and industrial applications.
What is BIS Certified for Heat-Treated Steels Alloy and Free-Cutting Steels — Ball and Roller Bearing Steels. ?
The BIS certified specification for ball and roller bearing steels defines requirements for alloy and free-cutting steels, including chemical composition, hardness after heat treatment, microstructure, inclusion content, dimensional tolerances, and testing methods. Compliance ensures consistent performance, durability, and suitability for high-precision bearing applications.
Test required for Heat-Treated Steels Alloy and Free-Cutting Steels — Ball and Roller Bearing Steels.
| Title | Mandatory/Optional |
|---|---|
| Ladle Analysis | Required |
| Product analysis | Required |
| Hardenability | Required |
| Hardness | Required |
| Microstructure | Optional |
| Austenitic grain size of casehardening and inductionhardening bearing steels | Optional |
| Degree of Spheroidization | Optional |
| Distribution of Carbides | Optional |
| Non Metallic inclusions | Optional |
| Macroscopic inclusions | Optional |
| Internal Soundness | Optional |
| Surface Quality | Required |
| Decarburization Test | Optional |
| Dimensions and Tolerances | Required |
Benefits of BIS Certification for Heat-Treated Steels Alloy and Free-Cutting Steels — Ball and Roller Bearing Steels.
1. Assured Performance and Durability BIS-certified bearing steels meet strict standards for hardness, wear resistance, and fatigue life, ensuring long-lasting and reliable bearing performance.
2. Controlled Metallurgical Quality Certification ensures clean steel with controlled inclusions and uniform microstructure, reducing the risk of cracks, spalling, and premature bearing failure.
3. Manufacturing Consistency BIS standards provide uniform specifications, enabling smooth machining, heat treatment, and consistent quality across production batches.
4. Regulatory and Market Compliance BIS certification is mandatory in India, allowing manufacturers and importers to legally supply bearing steels without penalties or rejection.
5. Enhanced Industry Trust and Acceptance BIS-certified steels build confidence among OEMs, automotive manufacturers, and exporters, improving brand value and competitiveness in domestic and global markets.