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Tape, round, wire 44NKHTJU
Characteristics of the alloy 44NKHTJU.
Alloy 44NKHTJU is a precision alloy with elastic elements, and is used in the production of elastic and sensitive elements, which operate at temperatures up to 200 °C.
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. The hardness of the alloy is HB 10 -1 = 300 — 320 MPa.
Chemical composition 44NKHTJU, in percent.
| Al | Ni | Cr | S | Fe | P | C | Si | Mn | Ti |
|---|---|---|---|---|---|---|---|---|---|
| 0.4 — 0.8 | 43.5 — 45.5 | 5 — 5.6 | up to 0.02 | 44.11 — 48.3 | up to 0.02 | to 0.05 | 0.3 — 0.6 | 0.3 — 0.6 | 2.2 — 2.7 |
Physical characteristics 44NKHTJU.
| J/(kg·deg) | MPa | Ohm·m | W/(m·deg) | kg/m3 | Grad | 1/Deg |
|---|---|---|---|---|---|---|
| 1.79 | 20 | 8 | ||||
| C | E 10 — 5 | R 10 9 | l | r | T | a 10 6 |
| 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 1.0 T magnetic induction in [ 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 |
Mechanical characteristics 44NKHTJU at a temperature of 20 °C.
| MPa | - | kJ / m2 | mm | MPa | % | - | % | |
|---|---|---|---|---|---|---|---|---|
| Assortment | blower SB | Eg. | KCU | Size | sT | d5 | Heat treatment. | y |
| Poloniato.wire, GOST 14118−85 | 980 | |||||||
| Wire in accordance with GOST 14119−85 | 980 | 635 | 635 | 15 | Aging, hardening | 25 | ||
| Tape sugartown., in accordance with GOST 14117−85 | 800 | |||||||
| Sugartown. wire in accordance with GOST 14118−85 | 1180 |
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 |
| Welding: | |
|---|---|
| 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. |
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The range of products from alloy 44NKHTJU, represented by LLC «AVEK global» can satisfy 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.