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40KKHNM - эи995 tape

40KKHNM - эи995 tape

Characteristics of the alloy 40KKHNM.

Precision alloy is a metal alloy which has physical and mechanical unique characteristics (magnetic, elastic, thermal, electrical, etc.). Precision alloy has a number of properties characterizing the accuracy of the chemical. composition, thoroughness manufacturing and processing, the absence of various impurities. This category contains, as a rule, high-alloyed alloys. Precision alloy is mainly produced based on iron, Nickel, copper, niobium, cobalt. This group of alloys used in precision machine tools, in the production of various precision electronic devices, innovative technologies and laser equipment, household appliances, production of metrological and measuring instruments.

Chemical composition 40KKHNM, in percent.

P Si Ni Mn S Mo C Fe
19 -21 1.8 -2.2 up to 0.02 15 -17 up to 0.02 39 -41 to 0.5 10.74 -18.73
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.

Mechanical characteristics 40KKHNM at 20 °C.

Assortment Eg. sT Size y blower SB d5 Armoor.
- - MPa mm % MPa % -
    2400−3000     3200−3800  

Закалка1100 — 1150oC, oil

Старение400 — 450oC, 4h,

Nagarebana tape     0.1 — 2   1670   Старение450 — 550 o C, 2 — 4h,
Wire         2450−2650    
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

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 alloy 40KKHNM, represented by 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.