Annealing, quenching and heat treatment of low-alloy structural steel for welded structures
Are you interested in annealing low-alloy structural steels from the supplier company AvecGlob? Here you will find interesting information on this topic.
General information
Annealing is a process in which the properties of low alloy structural steel are improved to improve its machinability. Annealing is carried out at temperatures slightly above the critical temperature of the steel (723 ° C), followed by slow cooling.
Types of annealing
The following annealing techniques are used for low-alloy structural steel:
Full annealing — the process involves heating the steel to a temperature of 30−50 ° C above the critical temperature and maintaining the temperature for a certain period of time. Further, the steel should slowly cool down inside the furnace itself without any forced cooling means;
Incomplete annealing — the process is mainly suitable for low-carbon steel. The material is heated to a temperature just below the lower critical temperature. Such annealing is used for cold-rolled steel with increased hardness;
Annealing to relieve internal stresses — large castings or welded structures, as a rule, have internal stresses. This causes brittleness, which can lead to sudden breakage or destruction of the material. This process involves heating to about 650 ° C, and the temperature is kept constant for several hours, after which the metal slowly cools;
Spheroidizing annealing is a process used for alloying steel in order to improve machinability. At the same time, the internal structure of steel is improving. This can be done by heating the metal just below the lower critical temperature, followed by slow cooling.
Supplier — AvekGlob Company — offers at a reasonable price from the manufacturer a diverse range of low alloy structural steels for welded structures that meet the technical requirements of domestic and foreign standards. The supplier guarantees the timely delivery of products to any address specified by the consumer.
The advantages of annealing
It softens the steel.
It improves the machinability of steel.
Increases the ductility of steel
Increases the strength of steel
Improves the structural uniformity of steel
The grain size has been repeatedly cleaned by annealing
He prepares steel for further heat treatment.
Supplier — AvekGlob company — offers to purchase various grades of low alloy structural steels for welded structures that meet all technical standards and requirements. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.