Multilayer stainless steel sheet
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 06НХ28MDT | Delivery from the stock, in stock | ||||
| 20X13 | EJ2 | 1.4021 | 420 | X20Cr13 | Delivery from the stock, in stock |
| 40X13 | EJ4 | 1.4034 | 420 | X46Cr13 | Delivery from the stock, in stock |
Manufacturing
Multilayer sheet is based on inexpensive low-alloy steel. The sheet is then coated with high-alloyed stainless steel or non-ferrous metals or aluminum. Such sheets may be made of carbon steel alternately with layers of varying carbon saturation. The alloying additives are also used in this case in different ways. Two-layer stainless steel sheets are produced by hot-rolling two sheets. The upper layer, as a higher quality layer, performs a protective function, protecting the metal from corrosion. This method saves materials, and production is cheaper. Three-layer sheets are obtained by placing a low-carbon interlayer between two sheets of high-alloyed steel. Such a three-layer billet is then hot-rolled. Three-layer sheets are also made as follows. Two thick stainless steel plates are placed in the ingot. To avoid sintering, they are pretreated with chromium oxide. Carbon steel is inserted between the plates and the edge is welded. Then the ingot is rolled to the desired thickness. Twice the thickness of two-layer stainless steel is obtained by a method in which a four-layer billet is rolled. The sheets are pre-rounded and two sheets of carbon steel are placed between the high-alloy steel, laying them with protective strips. The workpiece is welded and rolled. The sheets are then separated from each other and treated at 1250 °C. In conclusion, polymer-coated steel can also be classified as multilayer. Plastic extends the life of stainless steel, giving additional protection.
Percentage composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 06NCH28MDT | ≤0.06 | ≤0,8 | ≤0,8 | ≤0,035 | ≤0,02 | 22−25 | 26−29 | 2,5−3,5 | 2,5−3 | 0,5−0,9 | Base |
Percentage composition of 20X13 grade (GOST 5632−72)
| Alloy | C | Si | Mn | Ni | Cr | P | S | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 20Х13 | 0,16−0,25 | ≤0,6 | ≤0,6 | ≤6 | 12−14 | ≤0,03 | ≤0,025 | --- | base |
Percentage composition of 40X13 grade (GOST 5632−72)
| Alloy | C | Si | Mn | Ni | Cr | P | S | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 40Х13 | 0,35−0,44 | ≤0,6 | ≤0,6 | ≤0,6 | 12−14 | ≤0,03 | ≤0,025 | --- | base |
Application
Such stainless sheets today are widely used by construction and architecture as a finishing material. In chemical, oil refining and food industries for the manufacture of various equipment are increasingly using two-layer and three-layer stainless steel sheets.
Delivery
We supply certified sandwich plate. Technical documentation includes data on chemical composition, maximum percentage of impurities and mechanical properties of products. Products are subjected to ultrasonic control. From us you can buy in bulk any semi-finished products for large-scale productions. We also offer the best conditions for retail buyers. The high level of service and responsiveness of service is the face of our company.
Buy at the best price
Evek GmbH offers its customers an unlimited choice of stainless steel products of the highest quality at a competitive price. If you have difficulty in making a choice, our experienced managers are always available and ready to provide advice. If you make an order you receive certified products that meet international quality standards in the shortest possible time. If you value your time, contact our nearest office today or order online.