What is NM400 steel equivalent Indian standard
NM400 steel is an abrasion-resistant steel widely used in industries such as mining, construction, and engineering. This steel has excellent toughness, wear resistance, and strength characteristics making it an ideal material for high-stress applications and components requiring greater tensile strength and durability. NM400 steel is usually referred to as an abrasion-resistant steel or AR steel, which is the most commonly used type of wear-resistant steel.
In India, the Indian Standard for structural steel or IS, is used to grade steel. These guidelines, regulated by the Bureau of Indian Standards, are followed in India to ensure the quality and performance of steel products. The Indian Standards (IS) code for NM400 steel is: IS 2062.
IS 2062 is the standard that establishes the required chemical, mechanical and physical requirements for the manufacture and design of ferrous materials (steel). It is one of the most commonly used standards in India and is based on international standards. To meet the requirements of IS 2062, the chemical content of NM400 steel should be at least as follows: Carbon 0.25%, Silicone 0.75%, Manganese 1.50%, and Phosphorus 0.035%. Apart from these, NM400 may also contain up to 0.004% sulfur and up to 0.05% nitrogen.
In terms of mechanical properties, NM400 steel should have a minimum yield strength of 360MPa, with minimum tensile strength being 480MPa. The elongation should be greater than 22%, and the hardness should range from 150–255HBW.
NM400 steel has excellent properties and is one of the best choices for abrasion-resistant steel applications. The Indian standard IS 2062 covers all the required chemical, mechanical and physical properties of the steel ensuring a high quality and performance standard for use in manufacturing industries in India.




