Annealing, quenching and heat treatment of brass
Are you interested in annealing, quenching and heat treatment of brass? Supplier Evek GmbH offers to buy brass at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Choice of technology
Types of heat treatment of brass are determined by the percentage of zinc in the alloy, and also by the type of the phase diagram, to which type of brass the alloy belongs — to single-phase or to two-phase. Supplier Evek GmbH offers to buy brass rolled products of domestic and foreign production at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Heat treatment of single-phase (simple) brasses
For such varieties, recrystallization or conventional annealing is used. The goal is to remove internal stresses that may appear during plastic deformation of the material. The annealing regime depends on the concentration of zinc in the alloy: with increasing this parameter, the required heat treatment temperature decreases, but no more than up to 300 ° C. The annealing efficiency depends on the final size of the grains in the microstructure. They are installed according to the indications of a metal-instrumental microscope, or by reference structures, which are given in GOST 5362 .
An atmosphere for annealing
It is not recommended to perform heat treatment in a conventional atmosphere containing a significant amount of oxygen. This leads to an uneven reduction in the grain size, and on the surface of the alloy clearly distinguished spots of oxides, which have to be removed by etching the alloy in a solution of orthophosphoric acid or potassium dichromate. A more effective method of heat treatment is vacuum annealing, or the use of a protective atmosphere of inert gases. At the same time, zinc burnout is also reduced.
Heat treatment of two-phase brass
Multiphase brass is obtained by adding other alloying elements — iron, aluminum, lead, etc., other than zinc. Each of the brass grades has its recrystallization annealing temperature. The following modes are most often used:
|The need for annealing||Optimum temperature mode|
|Removing internal stresses after cold rolling||300… 320 ° С|
|Reducing the risk of corrosion cracking after hot rolling||260… 280 ° С;|
|Prevent zinc burnout||450… 700 ° С|
|Recrystallization annealing||450… 470 ° С|
Buy. Supplier, price
Are you interested in annealing, quenching and heat treatment of brass? Supplier Evek GmbH offers to buy brass at the manufacturer’s price. We will ensure the delivery of products to any point of the continent. The price is optimal. We invite you to partner cooperation.