Circle, rod 15KH25T - 1.4762 - aisi 446
Production
Wire, round bars and 15KH25T are the products of long products. The composition of finished products fully meet the technical conditions and GOST 5632- — 72. It contains: 24−27% chromium, 0.8% manganese, 1% silicon, 0.15 carbon, to 0.5−0.9% titanium thousandths of a percent of sulfur and phosphorus. Steel production is carried out in an open arc furnace, which ensures a minimum of unnecessary impurities.
The chemical composition of (GOST 5632−72)
| Alloy | Si | C | Mn | P | Cr | Ti | S | Fe | |
|---|---|---|---|---|---|---|---|---|---|
| 15KH25T | ≤1 | ≤0,15 | ≤0,8 | ≤0,035 | 24−27 | 0,5−0,9 | ≤0,025 | Basis |
Treatment
Plastic deformation is performed in temperature range of 1100 °C at the beginning of the process and up to 800 °C at the end. In accordance with the first mode semi-finished products are cooled in water, oil or air, and according to the second mode in water, followed by holding for 4−4. 5 hours. Carry out welding by the electric arc method. For manual electric arc welding used electrodes OzL-35, OzL-25. The rod is quenched at a temperature of 1050−1150°C in air.
Classification
A circle, usually made with a length of 2−6 m. the Precision manufacturing is marked by the letters A, B, C, which means high precision, improved accuracy and precision of conventional production. According to the method of heat treatment range is thermally treated — T, without heat treatment, and N — full hard (repeatedly subjected to rolling). Length of wire, rod, circle is the measuring length, random length, dimensional.
Application
Wire, round bars and 15KH25T can withstand thermal stress 1000 °C for a long period of time without loss of strength qualities. They are used in the production of commercials for slot furnaces, which serve for fast firing ceramic tiles, flat household ceramics, etc. ceramic products. Wire made conveyor furnace nets. Also, this steel is used in the form of blanks for the production area, beams, channels and special purpose profile used in the construction industry. Round 15KH25T in demand in mechanical engineering. It is actively used as a billet for the production of axles, bushings, pushers, shafts and other moving parts of equipment. The wire is used for different fasteners, mesh, parts, electrical appliances, electrodes for welding operations.
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