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CrN40MDTU (circle, wire, tube, sheet, strip) (ep543U)


Alloy of this grade refers to the type of iron-nickel alloys. It is classified as stainless, corrosion-resistant, heat-resistant and heat-resistant austenitic grade steel. It is melted in electric arc furnaces. It is used in the production of chemical welded equipment (centrifugal separators, centrifuges) operating in aggressive environments (in hydrochloric, phosphoric, sulfuric acid solutions, acetic and halocarbon acids, etc.). Sensitive elastic elements (membranes, bellows, springs) and equipment required for synthesis of acetic acid from methanol and carbon oxide, ion exchange resins, polypropylene, chemical-pharmaceuticals and other organic synthesis products are made from this alloy. The alloy is made in accordance with the following TU: 14-1-1754-76; 14-1-1214-82; 14-1-3639-83; 14-1-4042-85; 14-1-3190-81; 14-1-3528-83; 14-1-3546-83.

Chemical composition

Ni C Cu Cr Ce Fe Mn Mo Al N Mn Si Y
39 - 42 ≤0,03 1,5 - 2,2 20 - 22 ≤ 0,03 Base 0,8 - 1,5 5 - 6,5 ≤0,2 ≤0,03 0,8 - 1,5 ≤0,2 ≤0,2

Technical characteristic

- The magnetic permeability in the 500 E field at temp. 20 °C is 1.255 micro Tesla/m.

- Hardness = 200 NV MPa -1.

- Specific resistance at 20 °C is 0.75 Ohmxmm2/m.

- Thermal conductivity at 20°C is 0.134 - 10² W/(m - K).

- Density = 7.96 g/cm³.


For stamping, rolling and forging, the initial process temperature is 1170 °C, and at the end of the process it is 900 °C. This steel is relatively easy to cut. It is welded by manual, automatic flux and shielding gas welding. During manual arc welding, OZL-37-2, OZL-17U electrodes with a wire rod are used. This type of filler material is also used for automatic arc and argon arc welding.


Steel grade XN40MDTU is widely used in the manufacture of chemical welded equipment, such as: heat exchangers, reactors, pipelines. Also, the steel is used in the manufacture of metallurgical mining equipment, vessels which are operated in the environment of extractive phosphoric, 55% sulfuric acid and acetic acid, etc. the increased aggressive environments at temperatures up to 80 ° C.

CrN40MDTU, ep543U steel is used in equipment for the production of mineral fertilizers, for the manufacture of welding wire and welding electrodes. Such steel is indispensable for repair of welded joints - pipe fittings, joints of pipelines, equipment that operates in a radioactive environment, for pipe connections to the body of the apparatus. Alloy KhN40MDTU is used as a cladding layer in the production of centrifugally cast pipes, for coils of tube furnaces and double-layer hot-rolled corrosion-resistant sheets, installations for the production of ethylene, ammonia, carbon disulfide, hydrogen and other chemicals. The alloy of this grade is used in the production of branded tableware, jewelry, luxury items, and is also widely used in design.


Bars with a diameter of less than 9 mm are sold in coils, while those with a thickness of 9 mm can be supplied in straight lengths, measured and in multiples of measured lengths. High-alloyed quality steel allows producing standard length of 1 - 6 m. To order from alloyed steel ep543U is produced round, wire, sheet, pipe, strip of any parameters. We have the best price-quality ratio for the whole range of products.


Supplier Auremo offers to buy CrN40MDTU, ep543U (circle, wire, tube, sheet, strip) today on favorable terms. Large selection in stock. Conformity to GOST and international quality standards. Always in stock of CrN40MDB-vi, ep937-vi (circle, wire, tube, sheet, strip), the price is optimal from the supplier. Buy CrN40MDTU, ep543U (round, wire, tube, sheet, strip) today. Wholesale customers price - favorable.

Buy a bargain price.

Supplier "Auremo" offers on favorable terms to buy CHN40MDTU, ep543U (circle, wire, pipe, sheet, strip)) without a surcharge on additional costs. The site displays the most current information about products, there is a product catalog and price lists. Always in stock ep543U (round, wire, pipe, sheet, strip)), the price - the best from the supplier. Buy today. Under the order you can buy products of non-standard parameters. The order price depends on volume and additional terms of delivery. The supplier "Auremo" invites to buy CrN40MDTU, ep543U (circle, wire, tube, sheet, strip) in bulk or in installments. We have the best price-quality ratio for the whole range of products. In this segment the company "Auremo" - a profitable supplier. We are waiting for your orders.

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