Sheet, ribbon 1.4109 - aisi 440A
|Mark||Analogue||W. Nr.||Aisi Uns||En||Order|
|1.4109||440||S44002||Delivery from the stock, in stock|
Composition and properties
Steel AISI 409А (1.4105) is mild steel of ferritic class, whose structure in the production process stabiliziruemost titanium. Unlike the main brand of steel has an additional index A, which indicates the absence of a preliminary heat treatment after rolling. Steel has high against the common, immunity from intergranular corrosion. The closest European analog of the material is stainless steel grade X6CrTi12. In the domestic steel industry as a substitute of the steel is more commonly used stainless steel grade 08Х12Т1.
Chemical composition of steel AISI 409А (1.4105) with the following:
|Number, %||0,06…0,08||Not more than 0.8||Not more than 0.8||Not more than 0.6||12…14||The rest|
Unlike in the present analog steel 08Х12Т1, which is produced according to the specifications of the enterprise, has increased the tolerance for percentage content of titanium (up to 0.8%, which increases performance). In a similar order can be used and the 08KH13 steel according to GOST 5632. Among the inevitable impurities in metallurgical steel AISI 409А (1.4105) are sulphur and phosphorus. Ready to hire the number is limited by the following factors: sulfur — not more than 0,025% and phosphorus not more than 0,03%.
Sheets and strip of steel stainless steel AISI 409А (1.4105) have the following physical-mechanical parameters:
- Limit strength in tension (for the leaf), MPa — 405 420…;
- The plastic limit, MPa, not less than 280;
- Elongation, percent — 25 23…;
- The relative narrowing of the cross section % (for large workpieces) — not below 55;
- Brinell hardness number not higher than 135…140 units.
Features of steel when its supply is increased ductility, and limited weldability. However, the tendency to temper brittleness because of the mandatory annealing is missing. Rolled sheet steel under consideration of well processed by methods of plastic deformation, including at high speeds of production equipment, and cold.
Sheet and strip, in stainless steel AISI 409А (1.4105) is recommended for use in the manufacture of flat and volume in terms of products, which require high temperature resistance to corrosion-mechanical wear. Such parts include blades for steam and gas turbines, fan blades blower installations in metallurgical production, as well as the mounting and sealing elements are constantly in contact with chemically aggressive environments.
High corrosion resistance of parts made of stainless steel AISI 409А (1.4105), is maintained to a temperature of 440…4800 C, in particular, in acidic and alkaline environments.
Buy stainless sheet and strip steel AISI 409А (1.4105), on the proposal of the company Electrocentury-steel is expedient and economically profitable. The products are supplied at manufacturer’s prices, and is supplied with the obligatory certificate of quality.