08KH18N10T - 1.4301 - aisi 304 pipe
General characteristics
Brand 08KH18N10T (ЭИ914) refers to the type of chromium-Nickel austenitic steels. It is, compared with steel 12KH18N10T 12X18H12T and has a high resistance to intergranular corrosion in an industrial environment and used in the manufacture of welded structures operating in the temperature range of -196 +600°C in highly aggressive environments without pressure limitation.
The chemical composition of the alloy 08KH18N10T
| Fe | Cr | C | Mn | S | P | Ni | Ti | Si |
|---|---|---|---|---|---|---|---|---|
| DOS. | From 17 to 19 | ≤0,08 | ≤2 | ≤0,02 | ≤0,035 | From 9 to 11 | 5·S-0,7 | ≤0,8 |
Manufacturer
The brand 08KH18N10T steel is produced in electric arc furnaces open according to the following GOST: 18907−73, 5632−72; 4405−75, 5949−75; 5582−75, 9940−81, 25054−81. This material is classified as stainless steel, corrosion-resistant, plain, heat-resistant steel. It meets the strict requirements of the state standard, fairly easily handled by cutting way that enhances its use.
Made the following types of rentals: circle, tube, wire, sheet, ribbon. In case of plastic deforma 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. This steel is quite easy to weld using manual, automatic submerged arc welding. In the process of manual arc welding electrodes are used with wire rod St-01Х18Н10. With automatic welding filler use the same components as that for steel 12KH18N10T 12X18H12T. To protect the welds, apply a final heat treatment.
Physical properties at 20°C
— Specific gravity 7.9 g/cm3
— The thermal conductivity of the steel at a temperature of 20 °C is 0,134 · 102 W/(m · K).
— The modulus of elasticity of 17.8 · 10— 4 N/mm2
— The specific resistivity of 0.8 Omhm2/m
— The hardness of the steel is 200 MPa -1 NV.
— Specific heat is 0,504 · 103, j/(kg · K);
— Magnetic permeability in a field of 500 e равна1,255 micro Tesla/m.
Use
Production of welded constructions operated in a temperature range of -196 +600°C in highly corrosive environments, without limiting the pressure. Also used in the manufacture of containers which are operated in wet-process phosphoric, 55% sulfuric acid and acetic acid, etc. aggressive environments at temperatures up to 80 °C. Used in the equipment designed for the production of mineral fertilizers, for the manufacture of welding wire and welding electrodes, is indispensable for connection fittings in piping joints, repair welds equipment that operates in a radioactive environment. Steel 08KH18N10T is used as a cladding layer in the production plants of ethylene, ammonia, carbon disulphide, etc. of chemical substances.
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