15X25T- 1.4762 - aisi 446 pipe

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
15X25T EI439 1.4762 446 X10CrAl24 Delivery from the stock, in stock

Composition

Ferritic class steel 15X25T (EI439) is a complexly alloyed stainless steel alloy. The composition according to GOST 5632- - - - - - 72 chromium 24-27%, up to 1% silicon, 0.8% manganese, 0.5-0.9% titanium, 0.15 carbon, thousands of percent phosphorus and sulfur. The steel is melted in open electric furnaces. Such technological heat-resistant material is actively used in a wide range of industries for welded structures not subject to shock loads at t °≤1100 °С.

Percentage composition of 15X25T (EI439) GOST 5632-72

Alloy Si C Mn Ni Cr P S Ti Fe
15X25T ≤1 ≤0,15 ≤0,8 --- 24-27 ≤0,035 ≤0,025 ≤0,9 basis

Properties

This steel is resistant to seawater and alkaline solutions of Na2 S and NaHS. In aggressive environment of boiling 40% nitric acid corrosion rate is 0.1 mm/year. In phosphoric acid solution of any concentration - up to 0.01 mm/year.

Range GOST σB σT d5 Heat treatment
Bar 5949-75 440 295 20 Without machining
Cold tube 9941-81 461 17 -- "-- -- "--
Tubes f/a 9940-81 441 17 -- "-- -- "--
Thin sheet 7350-77 530 17 -- "-- 740 - 780o C annealing,
Thick plate 5582-75 440 14 200 Annealing 740 - 780o C,

σB - short-term tensile strength;

σT - yield strength for permanent deformation.

d5 - elongation at break

High-tech steel is easily hot deformable in the range of t° 1000 - 700 °C and cold deformable at t° 150 - 200 °C. It is welded by manual arc welding with preheating and final heat treatment.

Application

Pipes made of this alloy have excellent corrosion resistance, heat resistance and ductility. They are reliable in oxidizing environments, in the production of caustic soda. They are resistant to static loads, used for welded constructions, not subject to the action of vibration or shock, operated at t ° C from -20 ° C to 1100 ° C. These are pipes for heat exchangers operating in corrosive environments, thermocouple sheaths, furnace fittings, spark plug electrodes, Such pipes are used in the oil, chemical industry, for mine water intake, in the production of medicines, in the food industry, construction.

Supply

All products of grade 15X25T (EI439) are certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities, the mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale production. We also offer optimum conditions for retail buyers. High level of service and prompt service is the face of our company.

Buy at the best price

Evek GmbH has a wide range of stainless alloys in stock. We supply certified products of domestic and foreign manufacturers. Our staff is always happy to assist you with qualified assistance in the selection of metal products. We have some of the most experienced consulting managers. Strict adherence to production standards, excellent product quality and minimal lead time are the face of our company. Discount discounts have been introduced for regular customers.