50khfa - 50CrV4 - 50hf wire, round, rod
|Mark||Analogue||W. Nr.||Aisi Uns||En||Order|
|50ХФА||~50CrV4||Delivery from the stock, in stock|
Composition and properties
Domestic medium alloy steel 50KHFA (state of delivery — forgings, round, flats, strips, etc.) is a medium-carbon structural steel, composition and properties of which are governed by the requirements of GOST 14959. The chemical composition of the steel includes the following elements:
|The percentage||0,45…0,55||0,17…0,37||0,50…0,80||0,80 1,10…||To 0.40||0,10…0,20|
In the process of smelting in the composition of steel gets a limited amount of sulfur (not more than 0,025%) and phosphorus (not more than 0,020%).
Steel 50hf is analogous 50KHFA steel, which is produced in Poland, and 50CrV4 steel in Germany.
Physico-mechanical properties of the material:
- The limit of temporary resistance, MPa — 940;
- The plastic limit, MPa — 820;
- Elongation % — 22;
- Impact strength, kJ/m2 — 40.
- Brinell hardness number — 260…310.
Steel 50KHFA lends itself to different regimes of heat treatment — annealing at 8500 C in oil and subsequent vacation, the (normal, spheroidizing or isothermal) is determined by the final combination of properties.
Comes in a wide range of profiles including rolled wire (with coating and without it), forgings, rod, plate hire.
Steel 50KHFA (and its foreign counterparts) is used for the production responsible of the springs increased durability. Steel works well in high-up to 250…3000 With temperature, and has high durability in a constantly changing load conditions, including cyclic loading of parts.
Steel has high sensitivity to the grain growth during hot forging of the original billet, so produce a deformation at low speeds.
Flokirovanie missing. Weldability of steel is bad.
The company Electrocentury-steel offers at competitive prices from the supplier of any range of volumetric profiles of steel grades 50KHFA, 50CrV4 or 50hf. Guaranteed uniformity of properties, strict compliance profile and compliance with quality indicators of the finished product.