Tape, strip, sheet 55S2A - 55Si7 - 1.5026
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 55С2А | 1.5026 | 55Si7 | Delivery from the stock, in stock |
Composition and properties
Stainless steel of 55C2A grade, which is produced according to
| Component | С | Si | Mn | Cr | Ni |
|---|---|---|---|---|---|
| Percentage content | 0,52...0,58 | 1,50...2,00 | 0,60...0,90 | Up to 0.30 | Up to 0.40 |
As metallurgical impurities there are also sulfur (not more than 0,02%) and phosphorus (not more than 0,030%).
The closest foreign analogues of steel are considered: in the United States and Canada - steel 1.5026, in Europe - steel grade 55/56Si7. Their composition is somewhat different from 55C2A. In particular, tolerances for sulfur and phosphorus content are increased (up to 0.045%), the percentage of manganese content is slightly increased (0.7...1.0%), the upper tolerance for silicon is stricter (1.5...1.8%). Chromium and nickel are absent in analogues. Steels of the given grades are not made in large batches, therefore the physical and mechanical characteristics are established on prototypes which have been heat-treated under the following regime - hardening from 8700 С into oil, with the medium-temperature tempering (at 4700 С):
- Tensile strength - 1275 MPa;
- Ultimate ductility - 1174 MPa;
- Relative elongation - 6...7%;
- Relative contraction - 30%;
- Hardness of annealed/hardened samples according to Brinell - 240...280 NV.
These steels are not used for production of welded structures. In view of insensitivity of these steels to flaking and temper embrittlement it is possible to use technological processes of hot forging. Application
The spring steels 55S2A, 55Si7 and (1.5026) are widely used in the manufacture of heavy-duty springs and large-diameter springs (particularly in the manufacture of vehicles). Sometimes these steels are used in the manufacture of cutting tools (in this case they need to be precut to form a fine grain structure). The most popular profiles of rolled sheet is a hot-rolled sheet thickness from 3 to 50, as well as strips and strips.
Buy sheet metal rolled structural steel grades 55S2A, 55Si7, (1.5026), using the proposal of the company Evek GmbH - expedient and profitable. Rolled steel is sold at manufacturer's prices, a wide range of thicknesses, widths and lengths of the assortment is guaranteed, as well as high quality of products.