33NK (ribbon, circle, wire)
Technical Characteristics
Precision alloys are mainly made from chromium, nickel, copper, niobium and cobalt. They are high-alloys with rare physical characteristics: magnetic, elastic, thermal and electrical. These unique qualities are due to the precision of the chemical composition, the thoroughness of manufacturing and processing and the absence of impurities. This group of alloys is used in precision machine tool engineering, in the production of various precision electronic devices, in innovative technologies and laser equipment, in household appliances, in the production of metrological and measuring devices. Grade 33NK serves for connection with glass C72-4, mica, ceramics. This alloy has an average value of the thermal coefficient of linear expansion of 6 - 9x10-6/ C° (t° from -70 to + 470°C). The melting point of the alloy is 1450 °C.
The percentage composition of the alloy
| P |
S |
Ni |
Co |
Si |
C |
Fe |
Mn |
|---|
| ≤ 0.015 |
≤0.015 |
32.5 - 33.5 |
16.5 - 17.5 |
≤0.3 |
≤0.05 |
48.22 - 51 |
≤0.4 |
Mechanical strength (t° 20°C)
| Products |
Size |
KCU |
y |
d5 |
For example: KCU, KCU, KCU. |
|---|
Tightened strip
|
mm |
kJ/m2 |
% |
% |
|
| GOST 14 080-78 |
|
930 |
|
|
|
Mechanical properties
| Yield strength for permanent deformation (limit of proportionality), in [MPa] |
Tensile strength, in [MPa] |
Tensile elongation at break, in [%] |
Tensile strength, in [kJ/m2] |
Tensile strength, in [ % ] Relative narrowing, in [ % ] |
Brinell hardness, in [MPa] |
|---|
| sT |
in |
d5 |
KCU |
y |
HB |
Physical properties of the alloy 33 NK.
| kg/m3 |
W/(m-degree) |
Ohm-m |
J/(kg-degree) |
MPa |
degree |
1/Gradus |
|---|
| r |
l |
R 10 9 |
C |
E 10- 5 |
T |
a 10 6 |
| 8200 |
|
420 |
|
1.42 |
20 |
|
Legend
| Modulus of elasticity of the 1st kind, [MPa] |
Temperature at which the given properties are obtained, [°C] |
Coefficient of linear thermal expansion (temperature range 20o), [1/Grad] |
Specific Electrical Resistance, [Ohm-m] |
Density of the material, [kg/m3] |
Heat capacity of the material (heat transfer coefficient), [W/(m°C) |
Specific heat of material (temperature range 20o), [J/(kg-grad) |
|---|
| E |
T |
a |
R |
r |
l |
C |
Magnetic properties
| Coercive force (not higher), [ A/m] |
Magnetic permeability (not above), [ MHN/m] |
Specific loss (not above) at frequency 50 Hz, and magnetic induction 1.0 Tesla [ W/kg ] |
Magnetic induction Tl (not less) at magnetic field strength 100, in magnetic fields [ A/m] |
|---|
| Hc |
Umax |
P1.0/50 |
B100 |
Furnizor
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Buy at a bargain price
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