Rolling sheet and strip
Types of rolled products
- Stainless steel tubes. successfully used by the oil and gas industry and utilities, where the specificity of application of rolled stainless steel tubes is very diverse;
- Stainless steel sheet is one of the most popular types of rolled metal products. It can be used as billets for various products or used as ready-made product. Stainless steel sheet features a wide variety of surface types and sizes to meet the needs of businesses involved in a variety of industries;
- section rolled products. This type of rolled products includes - channels, angles, strips, which are necessary to increase the stability and rigidity of large structures and construction. In the machine and machine tool industry are often used such types of long products, as a circle, square and hexagon.
Strip production
In order to increase workability and plasticity of tape - practice preheating of billet to 1050-1080 ° C, then to give hardness, harden it in water. This hardening process strengthens the surface layer by means of plastic structural deformation. As a result, the products acquire high hardness and strength, but partially lose ductility and impact toughness. As the percentage of hardening increases, stainless steel becomes stronger but loses ductility. In addition to stainless high-tar and tungsten carbide tapes, there are also soft and semi-tungsten carbide tapes. They all differ in edge type, surface finish, accuracy and workmanship. As a rule the following grades are used for production: 12Х18Н10Е, 12Х25Н16Г7АР, 12Х21Н5Т, 12 (30)Х13, 08Х17Н5МЗ, 12Х17Г9А4, 12Х18Н9, 10Х17Н13МЗТ, 09Х15Н8Ю, 10Х17Н13М2Т, 20Х13Н4Г9 and others.
Use .
Today it is difficult to find an industry where stainless steel strip is not used. Annealed tape, due to its high plasticity, can be corrugated. Especially popular grades are - 12X18H10, 08X18H10 of chromium-nickel cryogenic and structural steel, with the addition of titanium. Such steels are heat-resistant and capable of withstanding t° up to 600 °C, having also high corrosion resistance. They are used in the manufacture of containers operating under high pressure, mainly in the food industry. Tape grade 12X18N10T is usually made soft, but after special treatment can become hardened. Due to their qualities, they are indispensable in the automotive industry, mechanical engineering, as well as in the manufacture of electrical devices.
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 |
Grade 10X17H13M2T is resistant to high temperatures and aggressive environments that are saturated with chlorine. Special resistance gives molybdenum and titanium in the composition. Its resistance is five times higher than that of carbon steel. Grade 20X23H18 is indispensable in chemical, metallurgical, electromechanical and other industries. This is due to its resistance to corrosion when exposed to concentrated condensates and gases.
Sheet Production
Thin plate is produced in accordance with
Cold-rolled steel sheets
Cold-rolled steel sheets can be: polished, polished, mirror, decorated, food grade.
| DIN | ASTM | EN | Surface | Type |
|---|---|---|---|---|
| n (IIIc) | 2B | 2 B | Heat-treated, cold-rolled, etched | matt mirror |
| c2 (IIa) | 1 | 1 D | heat treated, hot rolled, etched | hot rolled |
| M (IIId) | BA | 2 R | Fired in a vertical furnace, cold-rolled, with ammonia solution | Mirror |
Use
Rolled sheets are widely used in different sectors: food industry for making containers, chemical industry, welded structures, interior and exterior decoration, agriculture and medicine, construction (building structures and fences, facade cladding, etc
Percentage 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 |
Similar properties have the brand 10Х17Н13М2Т, serving as the material in the manufacture of units and machines that work reliably at high temperatures, in corrosive environments.
Hot and cold rolling
One of the ways of working metals and alloys under pressure is sheet and strip rolling. In this process, it is possible to obtain both laminated bimetallic sheets and conventional mono-material products. A distinction is made between hot and cold rolling. The former is used for both thin- and thick-sheet products, while the latter is used exclusively for thin-sheet products.
In strip rolling, the cold-rolling method is very often used. The main methods are 2:
-Batch;
-Rolled.
Supplier
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Buy a bargain price.
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