20s - 20Cr4 - 20h round, rod, forging
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| ~20Х | 1.7027 | ~5120 | 20Cr4 | Delivery from the stock, in stock |
To buy a round, rod, forgings structural chromium-containing steels 20KH, 20Сг4, 20h, the company offers Electrocentury-steel. The vendor guarantees the price of products from the manufacturer. Rapid transportation of bulk rolled and forgings in the item specified by the user.
Chemical composition
Low carbon structural steel grade 20X made in Russia and CIS according to the technical requirements of GOST 4543, and has the following composition:
| Item | Carbon | Silicon | Manganese | Chrome | Nickel | Copper |
|---|---|---|---|---|---|---|
| Content, % | 0,17…0,23 | 0,17…0,37 | 0,50…0,80 | 0,70 1,00… | To 0.25 | To 0.20 |
As a metallurgical impurities in the steel composition are the phosphorus and sulfur, the number of which shall not exceed 0,035% for each of the elements.
Also known foreign analogues of this steel. In particular, in Poland, a similar steel produced under the brand name 20h, and the countries of the European Union under the brand name 20Сг4. The technical requirements conform to the norms of AISI 5120. The chemical composition of the analogues do not differ from the steel 20S.
The company Electrocentury-steel offers to buy bulk rolled rod and forgings are made of structural steel grades 20X, 20Сг4, 20h, alloy chrome. Operates a cost-effective price from the manufacturer. The provider ensures the necessary range of the supplied products and its prompt delivery to the address set by the user.
Properties and applications
Alloy steels 20KH, 20Сг4 and 20h are exposed to all types of heat treatment — annealing, vacation, school. In the latter case, the physical-mechanical characteristics of steels the following:
- Tensile strength, MPa — 800;
- The plastic limit, MPa — 650;
- Elongation, percent — 11;
- The relative narrowing, % — 40;
- Brinell hardness number, not more than 187.
The considered steel are heat treatment — carburizing, after which are used for manufacture of critical parts — worm shaft,
Cams, bushings, hrapovic wheel, etc. Steel well machined and the methods of plastic deformation. Before cementation are characterized by a good weldability.
The company Electrocentury-steel offers at factory price buy bulk metal — round, rod, and forgings of structural chromium steel grades 20X, 20Сг4 and 20h. The supplier provides the required product to a minimum, and also operative delivery of production to the point specified by the user.