Bearing steel standards for the Din system
Are you interested in the standards bearing steel according to DIN from the supplier Alekhlas? Here you will find interesting information on this topic.
General information
Bearing steel Western European production should match their chemical compositions, physical dimensions and form agreed between the manufacturer and the purchaser.
Steel must have a small grain size on the fracture fracture at quenching from the normal temperature of austenization. Decarburization and surface imperfections shall not exceed the limits laid down by DIN 17300. When annealing is specified in the order, the steel shall conform to the requirements of hardness and have a fully spheroidization microstructure, which accordingly estimated the size of the carbide mesh.
Mechanical properties of steel must be not less than the following values:
| Tensile strength | Yield strength | The modulus of elasticity | Poisson’s Ratio | Coefficient of thermal conductivity | ||
| MPa | MPa | HPa | W/mgrad | |||
| 520 | 415 | 120 | 0,27 0,30… | 46 |
Supplier — the company Avecho offers at affordable prices from the manufacturer a diverse range of bearing steels which conform to the technical requirements of the standard DIN EN. Supplier guaranteed timely delivery at any address specified by the consumer.
Requirements for the composition of bearing steels produced according to DIN standards
Depending on the use, expected loads and required durability, the bearing steel shall conform to the following requirements:
During heat treatment of finished products of ball-bearing steels shall be hardness of 60−64 HRC.
Bearings can in a short time be exposed to high loads and temperatures up to 150 ° C;
The bearings must be made of stainless steel with chromium stainless steel (Werkst.Nr. 1.4125 or 1.3544). It is possible to manufacture bearings are also stainless or low-alloy steel.
Standard DIN EN 17300 defines the main materials for the production of bearing steel martensitic class. The required hardness values are reached by the heat treatment regimes. The standard stipulates also that for the production of bearings can be used stainless steel type Cronidur®30 (1.4108 steel), which has an associated nitrogen. These steels additionally contain molybdenum.
Mandatory is the requirement of high corrosion resistance, including to acids.
Supplier — the company Alekhlas — offers to purchase various bearing steels which conform to the technical standards and requirements DIN. Products can be purchased at a price formed on the basis of European and world standards of production. Possible, wholesale and retail, for regular customers a flexible system of discounts.