03H22N6M2 Alloy (ZI67)
Mark 03H22N6M2 refers to hromonikelmolibdenovym steels austenitic-ferritic class. Production is normalized by the following guests: 5632−72, 7350−77, and TU 14−1- 1905−76. Steel used for welded containers in the production of mineral fertilizers, sulfuric acid and acetic acid, urea and caprolactam. The permissible temperature of operation of such vessels from -70 to + 300 ° C. This steel and steel 08X21N6M2T (EP54), instead of the recommended brand 10X17H13M2T as brand-doped titanium differs significantly lower resistance to blade corrosion welds
The percentage of
|≤0,03||21−23||≤0,4||1−2||1.8 -2.5||5.5−6.5||≤0,02||≤0,035||The basis|
Mechanical properties at 20 ° C
|GOST||products||σ in N / mm²||σ 0,2, N / mm²||δ 5%|
|TU 14−1-1905−76||thin sheets||550||300||25|
Mechanical properties depending on the temperature (sheet 6 mm hardened in water at t ° 1050 ° C)
|es t, ° C||σ 0,2, N / mm²||σ in N / mm²||δ 5%||ψ,%||es t, ° C||σ 0,2, N / mm²||σ in N / mm²||δ 5%||ψ,%|
Mechanical properties at high tº (6.10 mm sheet, seasoned in water at t ° 1050 ° C)
|es t, ° C||σ 0,2, N / mm²||σ in N / mm²||δ 5%||ψ,%||n, of|
|1000||50||52||61; 109||85||5.5; 6.7|
Physical properties at 20 ° C
Density 7.7 g / cm3; resistivity = 0.7 Ohm • mm2 / m; saturation magnetic field of 500 Oe reaches 0.6 (tesla · m) / A; modulus of elasticity = 20 · x10−4 N / mm 2; and the temperature coefficient α of linear expansion as the temperature rises from 20 ° C to 100 ° C, 200 ° C and 300 ° C respectively of 9.5; 13,8 and 16,6×10−6 / ° C.
In accordance with GOST 7350−77, TU 14−1-1905−76 03H22N6M2 steel resistant to intergranular corrosion when tested by the method AM GOST 6032−89 (24 hours). Pass the test of quenched samples with additional provoking heated to 550 ° C (for one hour). During tests in boiling 65% HNO3 density 1.41 (3 cycles of 48 hours) the corrosion rate in the hardened state shall not exceed 0.5 mm / year. Resistance to general corrosion is close to that of steel 08H21N6M2T (EP54).
Hot deformation of such a low carbon steel is carried out at elevated temperatures, as compared with others. Corrosion resistant steels, namely at 1280−1100 ° C. This steel is well stamps, bends in the cold and hot conditions, well-cut. Tempered water at 1000−1050 ° C; the same heat treatment is applied to remove the work hardening after cold or hot deformation.
Well welded by all types of manual welding. For manual arc welding — better electrodes RLA-20. When TIG welding wire used 03X17N14M2 (EP551). The strength of the welds is not less than 90% of the base material at equal corrosion resistance. Welded joints do not require additional heat treatment.
Presented 03H22N6M2 rental brand certified. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products 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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In stock company «Elektrovek-steel» always available products from stainless steel alloys for the best price. It is formed with European rates on non-ferrous metals without the inclusion of the additional costs. We supply certified products of domestic and foreign manufacturers. Cooperation with us gives a number of advantages. Our experts will be happy to provide advice when buying any alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help you determine not only the optimum parameters of the product, but also offer the best price.