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Heat treatment of ASTM-A36 steel

ASTM-A36 steel has a higher carbon content than low-carbon steel, and it is considered as low-alloy steel. It is not advisable to directly heat-treat ASTM-A36 steel, because ASTM-A36 steel can be soften when heated. we will briefly introduce the heat treatment methods of ASTM-A36 from four aspects: normalizing, annealing, quenching and tempering.

·Normalizing
Normalizing is an important step of heat treatment, and the temperature is generally between 899℃ and 954℃.It can improve the strength and hardness of ASTM-A36 steel to make it more suitable for the mechanical manufacturing industry.

·Annealing
Annealing is a common method of heat treatment that changes the properties of metals by heating and cooling. Its temperature is generally between 843℃ and 871℃. To avoid problems such as cracks in the ASTM-A36 steel, it is necessary to control the rise and fall of temperature during the insulation and cooling process.

·Quenching
Quenching is a method of rapid cooling,It can further improve the hardness and toughness of ASTM-A36 steel.

·Tempering
Tempering will reduce the hardness of ASTM-A36 steel, but it can improve the toughness and plasticity of ASTM-A36 steel.

All above are the main methods of ASTM-A36 heat treatment, you can purchase ASTM-A36 steel from BBN , we have a large number of ASTM-A36 steel in stock to meet your delivery time requirements.