Classification of stainless steel wheels
Relevance
Stainless steel circle is the most popular type of stainless steel bar. According to the accuracy of rolling, it is divided into 3 classes, and by curvature - into 2 classes. Different industries use different types of stainless steel circles with different properties. For example, for the food industry, stainless steel circles must be certified and the nickel content should not exceed one percent. The most suitable for the food industry are steel grades 1.4301 (AISI 304), 1.4401 (AISI 316).
Range
According to the type of production circle is divided into calibrated and hot-rolled, the latter is of normal, high and increased accuracy. On the surface there should be no cracks or splits. However, the presence of minor scratches, sinks, traces of broaching is acceptable. Normally, they are supplied in 1.5-5 meters length. Calibrated round is cold rolled and cold drawn. Diameter is usually 5 - 270 mm. Thin items (up to 6 mm) are supplied in coils, and thicker ones are sold as stacks of straight segments. The most popular steel grades: 08X18H10T, 12X18H10T and 12X18H10T-VD, as well as monel. The supplier guarantees high quality of the products in accordance with GOST and international standards.
Tolerances
The maximum length of the stainless steel circle does not exceed 12 meters. The state standard provides for tolerances. For example, if the length of the circle up to 4 meters, it can have a deviation of no more than 13 mm, 4-6 m - allowable deviations up to 50 mm, more than 6 meters - up to 70 mm.
Application
Crugs 20X23H18 used in the manufacture of parts for high-temperature installations with operating temperatures above 1000 ° C in metallurgy, chemical, oil and gas and power engineering.
Chemical composition of GOST 5632-72
| Grade | C | Si | Cr | Mn | Ni | S | P | Fe |
|---|---|---|---|---|---|---|---|---|
| 20X23H18 | ≤0,2 | ≤1 | 22-25 | ≤2 | 17-20 | 0,02 | 0,035 | residue |
Circle grade 12Х18Н10Т is quite malleable, well processed. Preserves the mechanical, anti-corrosive qualities, at t ° 300-600 ° C. Finds wide application in the food, processing industry, the manufacture of mechanisms that are in contact with sea or chlorinated water, synthetic detergents.
Chemical composition of GOST 5632-72
| Grade | C | Si | Cr | Cu | Mn | Ni | Ti | S | P | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12CR18NI10T | ≤0,12 | ≤0,8 | 17-19 | ≤0,3 | ≤2 | 9-11 | ≤0,8 | 0,02 | 0,035 | residue |
10Х17Н13М2Т steel is made of non-magnetic steel, which has heat resistance up to +600 ° C and high corrosion resistance in aggressive environments. Such steel is used in the production of welded structures for pulp and paper, food, medical, chemical, oil and gas industries, as well as in power engineering.
Chemical composition of GOST 5632-72
| Grade | C | Si | Cr | Cu | Mn | Ni | Ti | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 10Х17Н13М2Т | ≤0,12 | ≤0,8 | 16-18 | ≤0,3 | ≤2 | 12-14 | ≤0,7 | 0,02 | 0,035 | residue |
Furnizor
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