Circle, rod 20KH25N20S2 - 1.4841 - aisi 314
Production
Heat-resistant steel brands 20KH25N20S2 refers to a complex alloy of iron alloys. In its composition contains Nickel, 18−21% chromium — 24−27%, silicon — 2−3%, manganese about 1.5%, copper, molybdenum — 0.3% vanadium, tungsten, carbon, titanium — 0.2%, of the additive sulfur and phosphorus. Is smelted in an induction furnace. Forging semi produced early in the process at a temperature of 1170 °C and in the end — about 850 °C. Quenched the circle and the wire is in air at a temperature of 1050−1150°C. Grooved rod 20KH25N20S2 is made according to the following GOST: 7417−75, 8560−78 and 8559−75. The silverfish and polished bars — normalized GOST 14955−77, forged blanks and forgings GOST 1133−71.
The circle is made by stamping — deformation under specified size. Hot stamping is the most simple and cheap method is less energy intensive, because of the deformation of hot metal is required much less effort. In the manufacture of a circle is stamped at the same time, several surfaces, resulting in a circle turns smooth, its surface is uniform and sizes are observed in full compliance with the requirements of the customer. Processing of multiple surfaces best economically possible to manufacture workpieces of different cross-section through the stamp, with the specified size. Ready-rolled steel brand 20KH25N20S2 in the form of wire, round, rod cooled in air.
| The percentage composition of the alloy GOST 5632−72 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mark | C | Si | Mo | V | Cr | Cu | Mn | Ni | Ti | W | S | P | Fe |
| 20KH25N20S2 | ≤0,2 | 2−3 | ≤0.3 mm | ≤0,2 | 24−27 | ≤0.3 mm | ≤1,5 | 18−21 | ≤0,2 | ≤0,2 | 0,02 | 0,035 | the rest |
Use
Parts of high temperature installations that are operated in mechanical engineering and petrochemical industries. The circle and rod, the rollers produce heat treatment furnaces, furnace conveyors, designed for operation up to 1000 °C, as well as boxes for carburizing and other details industrial high temperature furnaces. Boxes for cementation in metallurgy are intended for carbon saturation using the diffusion of low carbon steel to increase its hardness and wear resistance. When grouting inside structures is achieved, the temperature 850 — 900 °C. the Range is widely used in the textile industry, the wire used for welding steel.
Properties
The duration of operation is limited to a maximum temperature of 1000 °C, after which begins the active scale formation. Steel brand 20KH25N20S2 resistant to corrosion at high temperatures in air and hot gas environments. Alloying chromium, Nickel, silicon, molybdenum, vanadium, tungsten can withstand contact with aggressive media, because in the process of heating these substances on the surface to form a protective film — oxides of chromium, Nickel and Steel. 20KH25N20S2 enough plastic that allows it to produce the most intricate designs.
Buy at best price
A large range of brand products 20KH25N20S2 in stock LLC «AVEK global» is always available. Supply stainless steel wire and circle 20KH25N20S2 wholesale and retail. All products are certified. Product quality is guaranteed by strict observance of the norms of production. If you have any questions, you will receive detailed advice from experienced managers. For wholesale orders the company offers discounts.