BIS CERTIFICATION FOR HIGH SPEED TOOL STEELS
IS 7291:1981

This standard covers the requirements for high-speed tool steel in the following forms:

• Forged shapes
• Billets
• Bars - round, square, hexagonal, or octagonal
• Drill rods - round, square or rectangular
• Flats
• Strip in coils
• Sheets in cut length

The general requirements for material supply shall be as specified in IS 1387-1967. Steel covered by this standard must be ordered and delivered in accordance with the standard. The steel will be produced using an electric process. If any other process is used, the purchaser's prior approval is required.

Each ingot must undergo sufficient reduction and discard to ensure that it is free of piping, segregation, and other harmful defects. The material must be reasonably free of potentially harmful surfaces and internal flaws. However, after machining, any surface defects should be completely removed. At a suitable stage during reduction from the ingot to the finished size, the material may be conditioned to remove injurious surface defects by chipping, machining, grinding, or any other means. If the material is conditioned by grinding or chipping, the depth of conditioning must not be more than half the machining allowance per side, and the width of conditioning must be at least four times the greatest depth.

Tests

Tests shall be carried out in accordance with the standard.

• Chemical analysis
• Hardness
• Macrostructure
• Grain size
• Dimensional tolerances

Packing & Marking:

Packing and marking shall be done as per IS 7291:1981. The Standard Mark (ISI Mark) may also be applied to the material. Manufacturers must obtain a BIS license from the Bureau of Indian Standards to use a standard mark (ISI Mark). The Bureau grants a license based on a successful assessment of manufacturing infrastructure, production process, and quality control and testing capabilities during a visit to its manufacturing premises.

NOTE:

For Detailed Information about the Procedure for BIS ISI Certification

Conclusion:

If a product falls under the scope of the BIS Conformity Assessment Scheme, All the manufacturers, importers, and foreign entities must obtain BIS ISI Certification. The Bureau may cancel the License if the product fails to meet certification requirements.

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