20khgnm - 20NiCrMo2-2 - aisi 8620 round, rod, forging
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 20хгнм | ~1.6523 | 8720 | 20NiCrMo2-2 | Delivery from the stock, in stock |
The company Electrocentury-steel offers to buy at an economical price from the manufacturer bar, round, forgings of alloy steels 20KHGNM, 20NiCrMo2−2, AISI 8620. The supplier warrants to purchase products at factory price and also ensures prompt delivery of rolled products and forgings at the address determined by the consumer.
Chemical composition
Structural alloy steel 20 HGNM in Russia and CIS countries are produced in accordance with the norms of GOST 4543. It differs a high content of manganese, Nickel, chromium and molybdenum, as evidenced by the following table:
| Item | Carbon | Silicon | Manganese | Chrome | Nickel | Molybdenum | Copper |
|---|---|---|---|---|---|---|---|
| Availability 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 | To 0.3 |
The number of non-metallic impurities in the composition of the steel (phosphorus, sulfur) may not exceed 0,035%.
Foreign analogues of this steel are: in Europe steel grade 20NiCrMo2−2 (1.6523), which is produced according to the EN 10084 conditions in the US — steel AISI 8620, composition and properties of which meet the requirements of ASTM A29. The chemical composition of steel AISI 8620 is given in the table below:
| Item | Carbon | Silicon | Manganese | Nickel | Chrome | Molybdenum |
|---|---|---|---|---|---|---|
| Availability in steel, % | 0,18 0,23… | 0,15…0,35 | 0,70…0,90 | 0,40…0,70 | 0,40…0,60 | Of 0.15…0.25 |
Allowed the presence of metallurgical impurities — sulfur and phosphorus, the percentage of which in the steel is above 0,035% sulphur and 0,040% for phosphorus.
To by bar, round, forgings of alloyed structural steels 20KHGNM, 20NiCrMo2−2, AISI 8620, the company offers Electrocentury-steel. The vendor guarantees the price from the manufacturer, but also provides timely delivery of the products to the address indicated by the customer.
Properties and applications
After rolling the considered steels are subjected to annealing and/or quenching. Initial physical-mechanical parameters of materials are:
- Tensile strength, MPa 530;
- The plastic limit, MPa — 385;
- The modulus of elasticity, GPA — 190…210;
- Elongation, percent — 15;
- Impact strength, kJ/m3 — 119;
- Brinell hardness number, HB — 149.
Steel 20KHGNM, 20NiCrMo2−2, AISI 8620 are characterized by the average machinability on machine tools, but it is well stamped in a hot state. Due to good resistance from alternating loads, of these steels produce parts gears, mechanical gears, made Cam shafts, chain, crank mechanisms for cars of small and average power.
The company Electrocentury-steel offers at price from manufacturer bulk rolled rod and forgings made from alloy steel grades 20KHGNM, 20NiCrMo2−2, AISI 8620. The supplier guarantees compliance with the product range of the product and its delivery to the point specified by the client.
