Mark 01H25M2T-VI belongs to chromium ferritic steels. Serves as the basis of a welded heat-exchange equipment for the chemical and processing industry operated at temperatures up to 300 ° C at pressures up to 16 bar, in the manufacture of organochlorine compounds, caustic soda, among nasіschennoy chlorine ions. This alloy is relevant in the pulp and paper and oil refining industries.
For melting, vacuum induction furnaces are used. The technology includes a method of vacuum decarburization in the ladle. On alloy 01H18M2T-VI has the following specifications: 14−1-3996−85; 14−1-3547−83; 14−3-1275−83.
According to the technical specifications (14−3-1275−83 and 14−1-3547−83) Brand 01H25M2T-VI is not prone to intergranular corrosion when tested by the method of GOST 6032−89 AMU. Before the test, the sample is heated to t ° 1100 ° C for 30 minutes, then cooled in air. Note also resistance to stress corrosion cracking in chloride.
Interval hot plastic deformation temperature of 1160−850 ° C. Hot rolling the pipe is carried out at t ° 1050−1060 ° C. Quenching with water goes to t ° 900−920 ° C. After quenching tubes acquire ferrite structure with a small number of oxides and titanium nitrides. Prior to t ° 300 ° C they have no structural transformations. At higher heating embrittlement begins, and at 475 ° C in the alloy and above intermetallic phases are formed.
Mark superferritnoy steel 01H25M2T-VI, in contrast to ferritic steels such as 15H25T pretty well welded by manual TIG welding with filler wire Sv-01H18M2T-VI and St-01H25M2T-VI. It should be noted that the rate of heat input at the same time should not be more than 100 MJ / m². Threshold brittleness welds thin-walled tubes, made with a small heat input is equal to 0 ° C. Also welded joints of steels when tested in accordance with GOST 6032−89 AMU are not prone to intergranular corrosion.
We supply a certified rental brand 01H25M2T-VI. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy any products in bulk for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.
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