03KHN28MDT sheet, round, wire
General characteristics
Alloy 03KHN28MDT (ЭП516) refers to the type of iron-Nickel alloys. This alloy is used in the manufacture of welded equipment for the synthesis of sulfuric acid of different concentrations, for the manufacture of nitrophoska, extraction phosphoric acid, etc. compounds, which are characterized by increased aggressiveness. The main difference between 03KHN28MDT and alloy 06HN28MDT is that the first alloy has a higher resistance against intergranular corrosion of the base metal and welded joints during operation in aggressive environments.
Production
Alloy 03KHN28MDT produced according to technical conditions and GOST: TU 14−1-756−73; GOST 5632−72; GOST 7350−77; GOST 5949−75, and is classified as stainless steel, corrosion-resistant, plain, heat-resistant steel.
The chemical composition of the alloy
| Ni | C | Cu | Mo | Mn | Fe | Cr | P | Ti | Si | S |
|---|---|---|---|---|---|---|---|---|---|---|
| From 26 to 29 | ≤0,03 | From 2.5 to 3.5 | From 2.5 to 3 | ≤0,8 | OST. | From 22 to 25 | ≤0,035 | From 0.5 to 0.9 | ≤0,8 | ≤0,02 |
Steel grade austenitic 03KHN28MDT is smelted in electric arc furnaces. This steel fully meets strict requirements of the state standard.
Main features at a temperature of 20°C
— The thermal conductivity of 0,134 · 102 W/(m · K).
Is equal to the density of 7.96 g/cm3.
— Hardness = 200 HB MPa -1.
— Specific electrical resistivity of 0.75, Mhmm2/m.
— Magnetic permeability in a field of 500 e =, 255 micro Tesla/m.
Adaptability
In forging, rolling and forging in the initial stage of the technological process temperature range equal to 1170 °C, and at the end of the process it is 900 °C. Such iron-Nickel steel is satisfactory cuttability, which extends the possibilities of its use. It is welded with manual, automatic welding with flux and gas shielding. In the process of manual electric arc welding using electrodes OzL-37−2, OzL-17U with wire rod St-03ХН25МДГ SV-ОЗХН25МДГБ. This type of filler material is also used for automatic arc and TIG welding. As a recommended brand of flux an-18.
The use of steel
Steel stamps are manufactured 03KHN28MDT the following types of rentals: circle, tube, wire, sheet, ribbon. This steel was widely used in the manufacture of welded chemical equipment for the synthesis of mineral fertilizers, such as tanks, heat exchangers, reactors, pipelines, which are operated in contact with phosphoric, 55% sulfuric acid and acetic acid at a temperature up to 80 °C. From this steel cast parts for metallurgical and mining equipment, Steel 03KHN28MDT used for the manufacture of welding wire SV-03KHN28MDT. It is indispensable for connection fittings in piping joints, repair welds equipment that operates in a radioactive environment. Steel 03KHN28MDT used as a cladding layer in the production tsentrobezhnolityh pipes, coils for tubular furnaces and a two-layer corrosion-resistant hot-rolled sheets, plants for the production of ethylene, ammonia, carbon disulphide, hydrogen other chemical substances. Steel 03KHN28MDT used in the production of branded glassware, jewelry, luxury items, and is also widely used in the design.
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Large range of iron-rolled brand 03KHN28MDT in stock LLC «AVEK global» can satisfy any consumer. The quality of the finished product is ensured absolute compliance with all technological norms of production. The order execution time is the shortest. If you have any questions, you will receive detailed advice from experienced managers. For wholesale orders the company provides discounts.