18Cr2H4VA - 18CrNiMo7-6, 17CrNiMo6 - circle, bar, forging
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 18X2H4VA | 18CrNiMo7-6 | Delivery from the stock, in stock |
Evek GmbH offers to buy bars, rounds, forgings at prices from the manufacturer of low-carbon quality alloy steels 18Х2Н4ВА, 18CrNiMo7−6 and 17CrNiMo6. The price is from the manufacturer. The supplier guarantees performance of the product range and delivery to the address specified by the customer.
Chemical composition
Steels of this class are distinguished by increased percentage of tungsten and nickel (see table). In CIS countries 18Cr2N4VA steel is produced according to GOST 4543 requirements.
| Element | Carbon | Silicon | Manganese | Chrome | Tungsten | Nickel | Copper |
|---|---|---|---|---|---|---|---|
| Content in steel, % | 0,14…0,20 | 0,17…0,37 | 0,25…0,55 | 1,35…1,65 | 0,8…1.2 | 4.0…4,4 | Up to 0.3 |
As metallurgical impurities in the steel also present phosphorus and sulfur (up to 0.025% for each of the elements).
The closest foreign analogues of 18Cr2H4VA steel are 18CrNiMo7−6 (1.6587) and 17CrNiMo6. They are produced in Europe according to Euronorm EN 10204. For example, 18CrNiMo7−6 steel has the following chemical composition:
| Element | Carbon | Silicon | Molybdenum | Nickel | Aluminum | Chrome | Copper |
|---|---|---|---|---|---|---|---|
| Content in steel, % | 0,12…0,18 | 0,15…0,40 | 0,25…0,35 | 1,40…1,70 | Up to 0.02 | 1,50…1,80 | Up to 0.30 |
Tungsten is absent in the composition of steels, and the amount of sulfur and phosphorus can reach 0.035%.
Buy bars, rounds, forgings of alloyed structural steel 18Х2Н4ВА, 18CrNiMo7−6, 17CrNiMo6 offers the company Evek GmbH. Supplier guarantees favorable price from the manufacturer. Timely delivery to the location specified by the customer is provided.
Properties and application
These steels are subjected to various types of heat treatment, including carburizing, hardening and quenching. After tempering, the physical and mechanical properties of the materials are as follows:
- Tensile strength, MPa — 1050;
- yield strength, MPa — 800;
- Relative elongation, % — 12;
- Relative contraction, % — 50;
- Hardness after the annealing, NV — not more than 270;
- Impact toughness, kJ/m2 — 780…1175 (lower values correspond to rolled steel).
The steels being considered after heat treatment are used for production of parts operated under high vibration loads, which are accompanied by high stress and temperature drop (up to 4500 C). The steel is amenable to hot roll forming, but is characterized by reduced weldability.
Evek GmbH offers to buy structural rolled products and forgings made of 18X2H4VA, 18CrNiMo7−6 and 17CrNiMo6 structural alloy steels. Supplier guarantees an economically advantageous price of the products manufacturer. Delivery can be made to any point specified by the consumer.