20x - 20Cr4 - 20h circle, bar, forging

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
20X 1.7027 5120 20Cr4 Delivery from the stock, in stock

Evek GmbH offers to buy circles, bars, forgings of structural chrome-containing steel 20X, 20Cr4, 20h. The supplier guarantees the price of the products from the manufacturer. Prompt transportation of bulk bars and forgings to the location specified by the customer is provided.

Chemical composition

Low-carbon structural steel 20Х grade is produced in CIS according to GOST 4543 specifications and has the following composition:

Element Carbon Silicon Manganese Chrome Nickel Copper
Content, % 0,17...0,23 0,17...0,37 0,50...0,80 0,70...1,00 Up to 0.25 Up to 0.20

As metallurgical impurities in the composition of steel are phosphorus and sulfur, whose amount should not exceed 0.035% for each element.

There are foreign analogues of this steel. In particular, in Poland similar steel is produced under the brand 20h, and in the EU countries - under the brand 20Cr4. Their technical requirements correspond to AISI 5120 standards. According to their chemical composition, the analogues practically do not differ from 20X steel.

Evek GmbH company offers to buy bulk rolled products - bars, rounds and forgings made of construction steel grades 20X, 20Cr4, 20h, alloyed with chrome. Economically advantageous price from the manufacturer. Supplier guarantees the necessary range of products supplied and its prompt delivery to the address set by the customer.

Properties and application

Alloy steels 20X, 20Cr4 and 20h are subjected to all types of heat treatment - annealing, tempering, hardening. In the latter case, the physical and mechanical characteristics of the steels are as follows:

  • Ultimate strength, MPa - 800;
  • Ultimate ductility, MPa - 650;
  • Relative elongation, % - 11;
  • Relative contraction, % - 40;
  • Brinell hardness, not more than 187.

The steels undergo heat treatment - cementation, after which they are used for the manufacture of critical parts - worm shafts,

The steels are well machined on metal-cutting machines and by plastic deformation methods. Prior to carburizing they have good weldability.

Evek GmbH offers to buy bulk rolled steel products - rounds, bars and forgings made of chromium construction steel grades 20X, 20Cr4 and 20h - at producer prices. The supplier provides the required assortment minimum, as well as prompt delivery of products to the point indicated by the consumer.