Steel sheet 20H23N18 alloy (AISI 310s) is produced from complex-alloy austenitic, resistant to the action of soil and atmospheric moisture, aggressive industrial gases. According to GOST 5632−72 20H23N18 main alloying element is chromium in an amount of 22−25%. With the increase of its share increases corrosion resistance. 17% Cr makes the steel resistant to aggressive oxidizing environments. 12−15% Ni in the composition give the necessary plasticity and improve the heat resistance and corrosion resistance. Furthermore, an alloy doped 20H23N18 2% Mn, 1% Si, 0,2% C, thousandths of a percent phosphorus and sulfur.
The percentage of 20H20N14S2 grade (GOST 5632−72)
Heavy-duty sheet and plate semi-finished rolled 20H23N18 cold rolled or hot rolled according to the following method GOST: 7350−77, 19 903−74 19 904−74. The surface may be roughened, frosted or decorative homogeneous (etched). The sheet on which the traces of the grinding, can serve as a workpiece for cold rolled steel.
Mechanical properties of rolled products t o 20 o C.
|assortment||GOST||σ B||σ T||5 d||curing|
|thick sheet||7350−77||540||265||35||Hardening 1030 — 1130 o C, cooling water|
|thin sheet||5582−75||510||245||35||Hardening 1080 — 1150 o C, cooling water|
|thin sheet||4986−79||570||19−38||Hardening 1050 — 1080 o C, cooling air|
The σ — limit of short-term strength;
σ T — yield limit for residual deformation;d 5 — elongation at break.
Pendants, bandages, collars, boiler mountings, combustion chambers, muffles to work at t ° 1100 ° C. 20H23N18 sheet used in the automotive and chemical industry. In the food industry, such sheets are used for the production of heat-resistant glassware, cutlery. These sheets meet the strictest health and safety standards. Together with wood and stone, steel sheet is used for interior decoration in the style of hi-tech. The surface of the sheet can be polished, matte, mirror, frosted glass, decorative. Different textures give unusual external effects. In color options sheets, colored by oxidation, the color does not change over time. Due to resistance to atmospheric moisture such sheet is used in the open-air structures. Sheet of Russian production is often used for window frames, railings, windows, fire-resistant fire doors.
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LLC «Electrovek-steel» sells a wide range of stainless steel. Our offices are located in Russia and Ukraine. Buy sheet 20H23N18 possible, without leaving the office, through the Company’s website. We make quality custom orders parameters, terms of their implementation are minimal. When wholesale purchases discounts.