Steel 02Х21Н25М5ДБ
Relevance
This alloy belongs to the type of highly alloyed austenitic steels. It is used in the production of welded equipment operating in an acidic environment (pH 1) for the synthesis of nitric acid, nitrophos, phosphoric acid extraction
Production
This alloy is produced according to technical specifications: 14-1-29-73-80; 14-1-3230-81; 14-1-3686-83; 14-1-4730-89; 14-1-5076-91; 14-1-3801-85
Percent composition.
| C | Cu | Cr | Ce | Fe | Nb | Mo | Mn | Ni | Si | P | S | Ti |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0,02 | 1,3 - 1,8 | 20 - 22 | ≤ 0,02 | basis | 0,2 - 0,4 | 4 - 5 | 1 - 1,5 | 24 - 26 | ≤0,2 | ≤0,02 | ≤0,02 | 0,01 - 0,1 |
Smelting is performed in electric arc furnaces. This material is classified as stainless corrosion-resistant ordinary heat-resistant and heat-resistant austenitic grade steel.
Physical characteristics at 20°C
-The thermal conductivity of steel is 0.134 - 10² W/(m - K).
-The density is 8.02 g/cm3
-The modulus of elasticity is 17.8 - 10-4 N/mm2;
-Hardness of steel is 200 NV MPa-1.
-Resistance is 0.75 Ohmxmm2/m.
-Magnetic permeability in the field of 500 E is 1.255 microTesla/m.
Processing at .
The following types of rolled products are made of this steel grade: round, pipe, wire, sheet, strip. For stamping, rolling and forging, the temperature is 1170 °C at the start of the process and about 900 °C at the end of the process. This steel is capable of being quite easily cut and welded by manual argon arc welding. During manual arc welding electrodes OZL-24 with wire rod Св-02Х21Н25М5ДБ (EK5U) are used. To protect the welds, a final heat treatment is used.
The use of .
Alloy of this grade is widely used in the manufacture of heat exchangers, reactors, pipelines. metallurgical and mining equipment, chemical welded equipment: operating in acidic environments with increased aggressiveness in the synthesis of mineral fertilizers, in an environment enriched with fluorine ions and chlorine, in terms of erosive wear. Steel 02Х21Н25М5ДБ is also used for welding wire and welding electrodes. It is indispensable for joints of fittings, in the joints of pipelines, repair of welded joints of equipment that operates in a radioactive environment and pipes with the body of the apparatus. 02Х21Н25М5ДБ thin plate is used as a cladding layer in production of centrifugally cast tubes, for coils of tubular furnaces and double-layer hot-rolled corrosion-resistant sheets, in ethylene, ammonia, carbon disulfide and hydrogen production facilities.
Supplier
Are you interested in 02Х21Н25М5ДБ alloy? Alloy 02Х21Н25М5ДБ from the supplier "Auremo" meets GOST and international quality standards. Supplier "Auremo" offers to buy steel 02Х21Н25М5ДБ on favorable terms, the price - optimal. We offer to buy stainless steel from the specialized warehouses of the supplier "Auremo" with delivery to any city. Wholesale customers the price - preferential. Always in stock stainless steel, price - optimal from the supplier. We are waiting for your orders.
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Supplier "Auremo" offers to buy stainless steel, the price - due to the technological features of production without the inclusion of additional costs. The company's website displays information about the latest arrivals of products. It is possible to buy products with non-standard parameters to order. The order price depends on the volume and additional terms of delivery. The supplier "Auremo" invites to buy stainless steel rolled products in bulk or in installments. We have the best price-quality ratio for the whole range of products. In this segment Auremo is a profitable supplier.
