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Steel grade 12X18H9T (Х18Н9Т) belongs to the category of high-temperature, heat-resistant and corrosion-resistant steels, and chromium-Nickel type austenitic. Steel 12X18H9T have good indicators of plastic deformation in cold and hot condition. This steel is used for welding chemical and cryogenic equipment operating in the range from -196°to +600°C. According to GOST, this steel is resistant to intergranular corrosion. Analogues — brand 10KH14G14N4T, 12H17G9AN4, 12X18H10T.


The alloy 12X18H9T is alloy steel. Thanks to CR-Ni-based additives manganese, silicon etc., steel 12X18H9T acquired resistance to mechanical damage and high temperatures. Chromium and Nickel, which accounts for 17−19% and 8−9,5%, respectively, protect the constructions of such steel from corrosion in a corrosive gas environment, to hot acidic and alkaline solutions.

Percentage composition GOST 5632−72.

Alloy C Ti Cu Ni Cr Mn P S Si Fe
12X18H9T ≤0,12 ≤0,8 ≤0.3 mm 8−9,5 17−19 ≤0,2 ≤0,035 ≤0,02 ≤0,8 basis

12KH18N9T steel production takes place in electric arc furnaces. Rashkovka semi-finished products occurs with a decrease in temperature from 1200 °C to 850 °C. the Semi-finished section up to 350 mm cooled naturally in air. Packaged supply of pipes, tapes, sheets, wires and circles.


12X18H9T steel used in welded structures, operating at a significant temperature loads: details of the furnace fittings, heat exchangers, muffles, fragments of exhaust systems. In addition to high temperature, this steel is used for cryogenic equipment, when the temperature can reach -196°C. the Characteristics of steel 12KH18N9T suggests its use in hot environments, oxidizing properties, such as nitric acid, organic acids of medium concentration. Steel is widely demanded for chemical welded structures, production of chemical reactors, tanks, reservoirs, etc. equipment used under pressure.

buy at best price

High demand for products from alloy grade 12X18H9T due to optimal combination of price and quality. A wide range of products and a convenient method of ordering will make a purchase from us as comfortable as possible. Full compliance of all products to requirements of normative documentation on it and the availability of quality certificates for each type of products guarantees long-lasting reliable performance of the ordered materials. Invariably high quality semi-finished products determines the constant trust of our customers.