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Tape, round, wire 49K2F - ЭП207, 49K2FA-VI

Tape, round, wire 49K2F - ЭП207, 49K2FA-VI


Soft magnetic alloy 49K2 °F, 49K2FA-VI apply to magnetic materials with the coercive force of induction, not more than 4 kA/m according to GOST 19693−74. These alloys have high initial magnetic permeability. They are magnetized to saturation in weak fields. Precision alloys are used in the fields of precision machine tools in the manufacture of precise electronic equipment and household appliances, laser technology in innovative technologies, products Metrology and measurement equipment. These alloys are relevant for the manufacture of transformer cores, components, computer memory, magnetic antennas or magnetic circuits operating in sea water.


Soft magnetic materials are made from particularly pure ferromagnetic iron, electrical low carbon steels (siliceous, undoped). The composition in addition to iron include Nickel and cobalt. Also used precision alloy nizkotemperaturnye on iron-Nickel, iron base, ferrimagnetic, ferromagnetic, powder composites. They smelted in a special furnace, then the ingot is subjected to Rankovce.


Soft magnetic alloy 49K2 °F popular in the cores of compact and magdalinova power transformers, relays, chokes and parts of magnetic circuits that operate at elevated induction with a small bias or without bias. It is used in electrical engineering, and manufacture of sensors, transformers, electronic, electrical equipment, systems of automatics, telemechanics, computing. Precision alloy brand 49K2 °F (or ЭП207, 49K2FA-IN) used in the pole cores, rods, solenoids, magnets. From 49K2 °F produce wire, hot rolled sheets, forged bars and rods, hot-rolled, cold-rolled strip.

Chemical composition 49K2 °F percent, according to GOST 10994 — 74

Si Mn Ni C P Cr Co S
to 0.25 0.2 — 0.4 to 0.3 to 0.04 to 0.015 0.3 — 0.6 26.5 — 28 to 0.015

Mechanical characteristics 49K2 °F at temperatures of 20oC.

Assortment d5 Eg. Heat treatment. Size blower SB sT y KCU y
Tape, in accordance with GOST 10160−75 20       590 295      
- % - - mm MPa MPa % kJ / m2 %
sugartown. tape, in accordance with GOST 10160−75 2       1080        
Mechanical characteristics:
— Short-term tensile strength in [MPa] blower SB
— Yield strength (limit of proportionality) for the residual strain, [MPa] sT
— at break elongation in [ % ] d5
— narrowing of the relative in [ % ] y
— the viscosity of the shock, in [ kJ / m2] KCU
— Brinell hardness [MPa] HB

The physical characteristics of the brand 27KKH .

W/(m·deg) Ohm·m Grad MPa 1/Deg kg/m3 J/(kg·deg)
l R 10 9 T E 10 — 5 a 10 6 r C
    100   10.7    
  200 20 2.2   7980  
weldability limited — welding is possible in the process of heating up to temp. 100−120? C and further thermal treatment
konovalivka in order to obtain quality welded joints, it is necessary to perform additional operations: during welding heating up to temp. 200−300°C, heat treatment (annealing) after welding.
Welded without any restrictions — welding is carried out without further heat treatment and pre-heating.
Physical characteristics of this brand of alloy:
— 1st kind of modulus of elasticity, [MPa] — E
— The heat capacity of the material (or the ratio of teploprovodna.), in [W/(m·deg)] -l
— The temperature required to obtain these properties, [Grad] — T
— linear coefficient. temp. extensions to [1/Deg] (temp. the interval 20o), -a
— electrical resistivity, [Ohm·m] -R
— The density of this material, [kg/m3] -r
— the specific heat capacity of the material in [j/(kg·deg)] (temp. the interval 20 ° C) -C

Magnetic characteristics:

the coercive force (not more than) [A/m ] Hc
the magnetic permeability (not above) [ MH/m ] Umax
— specific losses (no higher) frequency 50 Hz, magnetic induction of 1.0 T [ W/kg ] P1.0/50
— T magnetic induction intensity of a magnetic field of not less than 100, in a magnetic field [ A/m ] B100

Buy at best price

The range of products from the alloy 49K2 °F represented in LLC «AVEK global» can satisfy almost any consumer. This alloy belongs to the popular group of steel products due to its real value and variety of output options. Quality metal products is guaranteed absolute observance of all technological norms of production. In the absence of the base performance required of the product and if necessary other option products, we can produce custom sizes to order.