Tape, foil 20Х20Н14С2 - 1.4828 - aisi 309
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 20Х20Н14С2 | EI211 | 1.4828 | 309 | X15CrNiSi20-12 | Delivery from the stock, in stock |
Composition
20Х20Н14С2 is a heat-resistant high-alloy chromium-nickel austenitic-ferritic steel used for the manufacture of rolled metal products such as sheet, strip, foil. It contains 19-22% Cr, 12-15% Ni. As additives to the charge 2-3% silicon, up to 1.5% manganese, 0.3% copper, 0.2% each titanium and carbon, thousandths of a percent phosphorus and sulfur are used.
Percent composition of grade 20Х20Н14С2 (GOST 5632-72)
| C | Cu | Si | Mn | Ni | Cr | P | S | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|
| ≤0,2 | ≤0,3 | 2-3 | ≤1,5 | 12-15 | 19-22 | ≤0,035 | ≤0,025 | ≤0,2 | basis |
Production, labeling
Thin plate is produced according to the requirements of the following GOSTs: 5582-75, 19 904-74, 19 903-74, the strip is produced according to GOSTs: 103-76, 4405-75. The forging process starts at 1170 °C and ends at 850 °C. Accuracy of production of sheet, strip, foil is marked with the letters, A and B: increased and normal accuracy, respectively. If the edge of the finished product is trimmed, the product is marked with the letter "O", unedged edge is marked with "NO". Products are also characterized by such an indicator as flatness, which can be particularly high (labeled as PO), high (labeled as PV), improved (labeled - PU) and normal (labeled - PN).
Cold-rolled sheet and strip can be annealed (marked "H1"), semi annealed (PN1), heat-treated (soft M4c), after light annealing or pickled (groups M2a, M3a, M4a). Hot-rolled steel can also be: soft (M4g) heat-treated, pickled or after light annealing (M2b, M3b, M4b).
Mechanical properties of rolled steel atto 20o C
| Range | GOST | σB | σT | d5 | Heat treatment |
|---|---|---|---|---|---|
| Sheet 1 - 4 mm | 5582-75 | 490 | 20 | --- | --- |
| Bar Ø 60 | 5949-75 | 510 | 375 | 20 | Tempering 1000 - 1150o C, air, |
σB - short-term tensile strength;
σT - yield strength for permanent deformation;
d5 - relative elongation at break.Application
The use of high-alloy steels, including steel 20X20H14S2, beneficial in metallurgy, woodworking, food industry, construction, interior design, Sheet, strip, foil is part of the details of high-temperature ovens, boxes for the saturation of metal products by carbon (for cementation); in the manufacture of oven conveyors used in the manufacture of food. in any decoration rooms. Sheet and strip are used in construction. Thick sheet can serve as the basis for the construction of columns, beams, thin sheet is used for roofing. Also in the construction you can use wide sheet, strip, they do not require alignment of the edges and can be made to a given measure. Fluted sheet can be used for a variety of coatings to prevent slipping, and sheet cut-and-drawn is an indispensable coating in areas where it is assumed a large accumulation of dirt and dust. 20Х20Н14С2 foil is used in the technology of fiber-optic cables for various purposes.
Buy at the best price
Evek GmbH sells a wide range of stainless steel products. Our representative offices are located. You can make a purchase without leaving your office, through the Company's website. The technological configuration of each production stage makes it possible to fulfill individual orders, if you are not satisfied with the basic products. We carry out quality orders of non-standard parameters, the terms of their performance are minimal. We provide discounts for bulk purchases.