IS 11513:2017 Hot Rolled Carbon Steel Strip for Cold Rolling Purposes

The Indian Standard IS 11513:2017 specifies the requirements for hot-rolled carbon steel strips to be used in cold rolling; the production process, chemical composition, and physical properties of the products. This standard mandates specified testing methods for tensile strength, dimensional tolerance, etc. To ensure that these products meet the safety and quality standards set by the Bureau of Indian Standards, this standard necessitates an attestation certificate from such manufacturers to sell these products in India.

BIS IS 11513:2017 specifies the requirements for hot-rolled carbon steel strips intended for cold-rolling purposes. They provide dimensions, physical properties, and quality standards. The carbon content specified shall be between 010 to 0.35% to ensure that the steel is suitable for further processing.

Application of BIS IS 11513:2017

• Automotive Industry: Used in the manufacturing of such parts as chassis and body panels due to increased strength and formability.
• Construction Sector: Basic material for structure applications where there is a demand for high strength and precision.
• Appliance Manufacture: Applied to household appliances wherein quality and reliability are prime concerns.
• Electrical Engineering: Applied to electrical component manufacturing where unique mechanical properties are required.
• Cold Rolling Processes: It is the major feedstock for cold rolling processes; which enhances mechanical properties and surface finish.

• Chemical Composition: Requires a maximum carbon content of 0.35% for hot rolled carbon steel strips, ensuring material quality.
• Mechanical Properties: Outlines requirements for tensile strength, yield strength, and elongation to guarantee performance in applications.
• Dimensional Tolerances: Provides guidelines on acceptable dimensions and tolerances to ensure uniformity in manufacturing processes.
• Testing Requirements: Includes detailed procedures for verifying compliance with chemical and physical specifications through rigorous testing.
• Certification Requirement: Both manufacturers are supposed to have ISI Mark certificates, which are of utmost importance for the products being sold in Indian markets.

Terminology of IS 11513:2017

Some of the major terminologies associated with BIS IS 11513:2017 are as follows:

• Hot Rolled Carbon Steel Strip: Steel strips that have hot rolled in nature, designed entirely in terms of cold rolling.
• Cold Rolling: Metalworking process in which it is used to roll steel at room temperature for rolling for the attained thickness and mechanical properties.
• Chemical Composition: The presence and concentration of the elements in steel, with a maximum carbon content of 0.35% specified in the standard.
• Mechanical Properties: The properties of steel during tensile strength, yield strength, or elongation properties that give an idea of how steel will perform in use.
• Freedom from Defects: Freedom from physical defects such as cracks or seams that can affect performance.
• Product Analysis: Testing of the finished steel strips that the chemical composition as specified is attained.
• ISI Mark: Mark of certification which expresses that a product adheres to Indian standards and must obtain these marks to be marketed in India over hot rolled carbon steel strips.
• Quality Control: Manufacturing processes and measures for ensuring that finished goods meet the standards and specifications set.

• Quality Assurance: The rolled carbon steel strips come with safety and quality in terms of product reliability.
• Access to Market: BIS certification is compulsorily applied, and manufacturers have the right to sell products in the Indian market.
• Consumer Confidence: The ISI Mark is synonymous with safety and quality, hence the consumer buys the products.
• Compliance with Law: Ensures manufacturers comply with legal stipulations of the Bureau of Indian Standards, which otherwise would attract penalties.
• Enhanced Brand Value: Enhances respectability and credibility of brands as manufacturers position themselves better in the marketplace.

• Compulsory compliance: All manufacturers will comply with IS 11513:2017 for hot-rolled carbon steel strips for cold-rolling from February 5, 2024.
• Chemical Composition: The standard specified that the carbon content should not exceed 0.35% to have good quality materials.
• Mechanical Properties: The standard also defined conditions for tensile strength, yield strength, and elongation to be met as performance parameters.
• Testing Requirements: Manufacturers will test ladle analysis and product analysis for the same compliance.
• Certification Requirement: ISI Mark certification is necessary to market these products in India. 
• Non-Compliance Penalty: failure to comply with the IS 11513: 2017 attracts legal penalties as declared by the law and imposes fines with a ban on the sale of these products in India.

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