IS 5517 : 1993
Steel and Iron - Steel for hardening and tempering – Specification
Summry
Steel for hardening and tempering is a carbon or alloy steel designed to achieve high strength, hardness, and toughness through controlled heat treatment processes. These steels are used in gears, shafts, tools, and machinery parts, providing wear resistance, durability, and reliability in demanding industrial applications.
Why BIS Certificate is Mandatory for Steel for hardening and tempering – Specification ?
BIS certification is mandatory to ensure steel for hardening and tempering meets Indian Standards for chemical composition, mechanical properties, and heat treatment suitability. Certification prevents substandard or unsafe steel from entering the market, ensuring consistent performance, industrial safety, and compliance with legal regulations for manufacturing critical components.
What is BIS Certified for Steel for hardening and tempering – Specification ?
BIS certified specification defines the quality requirements for steel for hardening and tempering, including chemical composition, mechanical properties, heat treatment response, and testing methods. Compliance ensures uniformity, durability, and suitability for industrial applications, guaranteeing that the steel meets performance standards for safety-critical and high-strength components.
Test required for Steel for hardening and tempering – Specification
| Title | Mandatory/Optional |
|---|---|
| Freedom from defects | Required |
Chemical Composition
| Title | Mandatory/Optional |
|---|---|
| Ladle Analysis | Required |
| Check Analysis | Optional |
| Hardness | Required |
| Mechanica lproperties | Required |
| Grain Size | Required |
| Cleanliness of steel | Required |
| Hardenability | Required |
| Dimensions & Tolerances | Required |
| Additional test | Required |
Benefits of BIS Certification for Steel for hardening and tempering – Specification
1. Guaranteed Material Quality BIS-certified steel ensures accurate chemical composition and microstructure, providing reliable hardness and strength after heat treatment.
2. Enhanced Component Performance Steel meeting BIS standards exhibits superior toughness, wear resistance, and dimensional stability in gears, shafts, and tools.
3. Industrial Safety Assurance Certification reduces the risk of failures in critical machinery and components, ensuring operational safety and minimizing accidents.
4. Regulatory Compliance BIS certification is legally required in India, enabling manufacturers and importers to sell products without legal hurdles or penalties.
5. Market Trust and Acceptance BIS-marked steel builds confidence among OEMs, industries, and consumers, enhances brand credibility, and facilitates domestic and international market access.