03Х22Н6М2 - ei67 aisi 301 sheet, circle, wire
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 03Х22Н6М2 | ZI67 | Delivery from the stock, in stock |
Characteristics
Grade 03X22H6M2 refers to chromium-nickelmolybdenum steel of austenitic-ferritic class. Production is regulated by the following GOST: 5632−72, 7350−77 and TU 14−1-1905−76. Steel is used for welded tanks in the production of mineral fertilizers, sulfuric and acetic acids, urea and caprolactam. Permissible operating temperature of such tanks is from -70 to +300°С. This steel, as well as steel 08X21H6M2T (EP54), is recommended instead of 10X17H13M2T grade, since titanium-alloyed grades are much less resistant against shear corrosion of welded joints.
Percentage composition
| C | Cr | Si | Mn | Mo | Ni | S | Р | Fe |
|---|---|---|---|---|---|---|---|---|
| ≤0,03 | 21−23 | ≤0,4 | 1−2 | 1,8 -2,5 | 5,5−6,5 | ≤0,02 | ≤0,035 | Basis |
Mechanical properties at 20 ° C
| GOST | Products | σ in, N/mm² | σ0, 2, N/mm² | δ5, % |
|---|---|---|---|---|
| 7350−77 | Thick plates | 590 | 345 | 25 |
| ТУ 14−1-1905−76 | Sheets thin | 550 | 300 | 25 |
Mechanical properties depending on temperature (6 mm sheet, quenched in water at t° 1050°С)
| tisp, °C | σ0.2, N/mm² | σc, N/mm² | δ5, % | ψ, % | tisp, °С | σ0, 2, N/mm² | σw, N/mm² | δ5, % | ψ, % |
|---|---|---|---|---|---|---|---|---|---|
| -100 | 600 | 1300 | 40 | - | 200 | 300 | 550 | 35 | 65 |
| -70 | 550 | 1050 | 40 | - | 400 | 100 | 450 | 41 | 68 |
| 0 | 450 | 750 | 60 | 70 | 600 | 120 | 400 | 38 | 68 |
| 20 | 350 | 570 | 30 | 68 | - | - | - | - | - |
Mechanical properties at high tº (sheet 6−10 mm, water hardened at t° 1050°C)
| tsp, °C | σ0.2, N/mm² | σc, N/mm² | δ5, % | ψ, % | n, r |
|---|---|---|---|---|---|
| 800 | 140−200 | 170−220 | 53; 90 | 68 | 3,9−4,6 |
| 900 | 80−100 | 80−110 | 65; 89 | 99 | 3,5−5,6 |
| 1000 | 50 | 52 | 61; 109 | 85 | 5,5; 6,7 |
| 1100 | 25 | 27 | 58; 146 | 85 | 6,8−11,0 |
| 1200 | 11 | 12 | 60; 80 | 77 | 10,5−19,6 |
Physical properties at 20°C
Density 7.7 g/cm3; specific electrical resistance = 0.7 Ohm — mm2/m; magnetic saturation in the field of 500 E reaches 0.6 (Tl — m)/A; modulus of elasticity = 20-x10−4 N/mm2; andthe temperature coefficient of linear expansion α as the temperature rises from 20 °C to 100 °C, 200 °C, and 300 °C is 9.5; 13.8, and 16.6x10−6/°C, respectively.
Corrosion resistance
According to GOST 7350−77, TU 14−1-1905−76 steel 03Х22Н6М2 resistant to intergranular corrosion during the test by the method of AM GOST 6032−89 (24 hours). The test is performed on quenched specimens with additional provoking heating to 550 °C (within one hour). During the test in boiling 65% HNO3 with a density of 1.41 (3 cycles of 48 hours) corrosion rate in the quenched state shall not exceed 0.5 mm/year. The resistance to general corrosion is close to that of 08X21H6M2T (EP54) steel.
Technological parameters
This mild steel is heat deformed at elevated temperatures compared to other corrosion-resistant steels, namely at 1280−1100°C. This steel can be well stamped, bent in cold and hot condition and cut well. It is water hardened at 1000−1050°C, and the same heat treatment is used for cold and hot work hardening.
Welding
Good for all kinds of manual welding. For manual arc welding — best electrodes OZL-20. When argon arc welding wire 03X17H14M2 (EP551) is used. The strength of welds is not less than 90% of the base material with equal corrosion resistance. Welded joints do not require additional heat treatment.
Delivery
The presented 03Х22Н6М2 grade is certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities; the mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale production. We also offer optimum conditions for retail buyers. The high level of service and responsiveness of service is the face of our company.
Buy at the best price
Elektrovek-Steel always has stainless steel products in stock at an optimal price. It is formed taking into account European rates for nonferrous metals, without the inclusion of additional costs. We supply certified products of domestic and foreign producers. Cooperation with us has a number of advantages. Our specialists will be happy to provide advice on purchasing any alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help to determine not only the optimum parameters of the product, but also offer the best price.