Relevance

Round bars and wires of 15X25T steel have been produced for a very long time, since Soviet times. These products have exceptional corrosion resistance to soil and atmospheric moisture, in contact with most acids and alkalis. Such technological heat-resistant material is actively used in a wide variety of industries for welded structures not subject to shock loads at t °≤1100 ° C.

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.

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

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.

_σB - short-term tensile strength;

_σT - yield strength for permanent deformation.

Steel semi-finished products, easily subjected to hot deformation in the range of t ° 1000 - 700 ° C and cold deformation at t ° 150 - 200 ° C. They are welded by hand arc welding with preheating and final heat treatment. The wire and rod can have both round and square cross sections.

Application

Round bars, wire alloy 15X25T have excellent resistance to corrosion, heat resistance and ductility. They are reliable in environments oxidizing nature, in an environment of caustic, neutral alkaline salts, sea water, so they are used in the manufacture of caustic soda and as components for the production of salt. They are resistant to static loads, used for welded structures, not subject to the action of vibrations and shocks, operating at t ° C from -20 ° C to 1100 ° C. These are parts of heat exchangers working in corrosive environments, furnace fittings, spark plug electrodes, They are in demand in industrial chemistry, in the textile, shipbuilding, oil and food industries, in the production of medicines as elements of architectural structures. They are also used to apply a variety of protective coatings.

Buy at the best price

Evek GmbH sells wide range of stainless steel rolled products. Our representative offices are located. You can make a purchase without leaving your office, through the Company's website. The technological configuration of each production stage makes it possible to fulfill individual orders, if you are not satisfied with the basic products. We carry out high quality individual orders of non-standard parameters, the terms of their performance are minimal. In case of bulk purchases we provide discounts.