20хgnm - 20NiCrMo2-2 - aisi 8620 circle, rod, forging
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 20xgnm | 1.6523 | 8720 | 20NiCrMo2-2 | Delivery from the stock, in stock |
Evek GmbH offers to buy bars, rounds, forgings from alloy steels 20ХГНМ, 20NiCrMo2−2, AISI 8620 at economically advantageous price from the manufacturer. Supplier guarantees the purchase of products at the manufacturer’s price, and provides prompt delivery of rolled products and forgings at the address specified by the consumer.
Chemical composition
Constructive alloyed steel 20 CrHNM in CIS countries is produced in accordance with GOST 4543 standards. It is characterized by an increased content of manganese, nickel, chromium and molybdenum, as evidenced by the following table:
| Element | Carbon | Silicon | Manganese | Chrome | Nickel | Molybdenum | Copper |
|---|---|---|---|---|---|---|---|
| Presence in steel, % | 0,18…0,23 | 0,17…0,37 | 0,7…1,1 | 0,4…0,7 | 0,4…0,7 | 0,15…0,25 | Up to 0.3 |
The amount of non-metallic impurities in the steel (phosphorus and sulfur) may not exceed 0.035%.
Foreign counterparts of this steel are as follows: in Europe — steel grade 20NiCrMo2−2 (1.6523), produced in accordance with EN 10084, in the USA — steel AISI 8620, composition and properties of which meet the requirements of ASTM A29. Chemical composition of AISI 8620 steel is given in the table:
| Element | Carbon | Silicon | Manganese | Nickel | Chrome | Molybdenum |
|---|---|---|---|---|---|---|
| Presence in steel, % | 0,18…0,23 | 0,15…0,35 | 0,70…0,90 | 0,40…0,70 | 0,40…0,60 | 0,15…0.25 |
The presence of metallurgical impurities — sulfur and phosphorus, the percentage content of which in steel shall not be higher than 0.035% for sulfur and 0.040% — phosphorus.
Buy bars, rounds, forgings of alloy structural steel 20ХГНМ, 20NiCrMo2−2, AISI 8620 offers the company Evek GmbH. Supplier guarantees the price from the manufacturer, as well as ensures timely delivery of products to the address indicated by the customer.
Properties and application
After rolling, the steels in question are annealed and/or quenched. The initial physical and mechanical parameters of the materials are:
- Tensile strength, MPa — 530;
- Ultimate ductility, MPa — 385;
- Modulus of elasticity, GPa — 190…210;
- Relative elongation, % — 15;
- Impact viscosity, kJ/m3 — 119;
- Brinell hardness, HB — 149.
Steels 20ХГНМ, 20NiCrMo2−2, AISI 8620 are characterized by average machinability on machine tools, however they are well stamped in hot state. Thanks to good resistance to alternating loads these steels are used for production of details of gears, mechanical transmissions, camshafts, chains and crank mechanisms of small and medium power machines.
Evek GmbH offers volume rolled products — bars, rounds and forgings made of 20XHNM, 20NiCrMo2−2, AISI 8620 alloy steels at producer price. Supplier guarantees compliance with the range of products, as well as its delivery to the location specified by the customer.