GOSTs of 08X21H6M2T and EP54 steel sheets

Relevance

Alloy 08Х21Н6М2Т refers to chrome-nickel-molybdenum steels of austenite-ferrite class. This alloy is used in the production of rectification columns, extraction, packing, blowdown and other vessels, storages, tanks, etc. This steel is well used in oxidizing reducing environments in acid production, pulp and paper industry and organic synthesis.

Percentage composition of 08X21H6M2T alloy

The steel is melted in electric arc furnaces. This alloy is classified as stainless corrosion-resistant ordinary heat-resistant and heat-resistant steel. austenitic-ferritic class. Production of rolled products from this alloy is regulated by the following specifications 14-3-59-72 and 14-1-894-74, as well as GOST: 5582-75; 25 054-81; 5632-72; 7350-77; 5949-75.

Characteristics of the alloy (t ° 20 ° C)

- Thermal conductivity 0.126 - 10² W/(m - K)

- Density 7.7 ^g/cm3

- Modulus of elasticity 19.3 - 10 - ^{4 N/mm2}

- Hardness 200 NV MPa -1

- Specific resistance 0.75 ^Ohmxmm2/m

- Magnetic permeability in the field of 500 E 0.6 (Tl - m)/A)

Welding

The electrodes 06X21H6M2T (coating ANV-17) and the electrodes Св-04Х19Н11МЗ (coating УОНИ-13) are suitable for manual welding of steel sheet with thickness not more than 10 mm, as well as for filling of steel gaps with thickness more than 10 mm. When argon-arc manual welding with non-consumable electrodes of steel sheet thickness up to 10 mm and in order to fill the parting of steel thickness greater than 10 mm, recommended wire Св-04Х19Н11МЗ. Weld strength of the welds is 90 percent of the base metal. Joints of all welding types are resistant to intergranular and general corrosion.

Use

Steel of this grade is used in the production of rectification columns, extraction, sump, blowdown and other vessels, storage tanks, tanks, etc. This steel is well used in oxidizing reducing environments in acid production, pulp and paper industry and organic synthesis. The steel is used in the production of acetic, phosphoric and sulfuric acid, melamine, caprolactam, urea. It is needed for obtaining ammonium chloride (by evaporation), in filtering equipment - sulfite cellulose and ammonium sulfate at a temperature of 100-110 ° C with the addition of sulfuric acid up to 20 g/l.

Supplier

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