33NK - эп139 ribbon, round, wire
General characteristics
Precision alloys are mainly produced on the basis of chromium, Nickel, copper, niobium, cobalt. They belong to the high-alloyed alloys with rare physical characteristics: magnetic, elastic, thermal, electrical. These unique qualities are due to the precision of the chemical. composition, thoroughness manufacturing and processing, absence of impurities. 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. Brand 33NK serves to connect with glass С72−4, mica, ceramics. This alloy has an average value of thermal coefficient of linear expansion 6 — 9x10-6/C° at t° from -70 to + 470 °C. the melting point of the alloy is 1450 °C. But such grades as 33NK, 33NK-VI for use in the upgraded or the latest technology are not permitted from January 1, 1991
| Welding: |
|---|
| weldability limited |
— welding is possible when heated to a temperature of 100−120? C and further heat treatment |
| konovalivka |
— to obtain high-quality welded connections require the following additional operations: during welding, heating to temperature of 200−300°C, annealing — heat treatment after welding. |
| Welded without any restrictions |
— the welding is done without preheating and without further heat treatment |
The chemical composition of the alloy NC 33, percent.
| P |
S |
Ni |
Co |
Si |
C |
Fe |
Mn |
|---|
| to 0.015 |
to 0.015 |
32.5 — 33.5 |
16.5 — 17.5 |
to 0.3 |
to 0.05 |
48.22 — 51 |
to 0.4 |
The mechanical properties of the alloy 33NK at 20 °C.
| Products |
Size |
KCU |
y |
d5 |
sT |
blower SB |
Eg. |
Heat treatment. |
|---|
| - |
mm |
kJ / m2 |
% |
% |
MPa |
MPa |
- |
- |
| GOST 14080−78 — nagarebana tape |
|
|
|
|
|
930 |
|
|
| Mechanical properties |
|---|
| — Yield strength for permanent deformation (limit of proportionality), [MPa] |
sT |
| — The ultimate short-term strength, [MPa] |
blower SB |
| The elongation at break, [ % ] |
d5 |
| — Impact strength in [ kJ / m2] |
KCU |
| Contraction ratio in [ % ] |
y |
| — Brinell hardness number, [MPa] |
HB |
The physical properties of the alloy 33 NK.
| kg/m3 |
W/(m·deg) |
Ohm·m |
J/(kg·deg) |
MPa |
Grad |
1/Deg |
|---|
| r |
l |
R 10 9 |
C |
E 10 — 5 |
T |
a 10 6 |
| 8200 |
|
420 |
|
1.42 |
20 |
|
Notation of alloy:
| — The modulus of elasticity of the 1st kind [MPa] |
— E |
| — The temperature at which the received data properties, [Deg] |
— T |
| The linear thermal expansion coefficient (interval pace. 20o), [1/Deg] |
-a |
| — Electrical resistivity, [Ohm·m] |
-R |
| — Material density, [kg/m3] |
-r |
| — The heat capacity of the material (conductivity), [W/(m·deg)] |
-l |
| — Specific heat of material (the interval pace. 20o), [j/(kg·deg)] |
-C |
Magnetic properties :
| — The coercive force (not more than), [ A/m ] |
Hc |
| — Magnetic permeability (not more than), [ MH/m ] |
Umax |
| — Specific losses (no higher) at a frequency of 50 Hz and magnetic induction of 1.0 T [ W/kg ] |
P1.0/50 |
| — Magnetic induction T (not less) in magnetic field of 100, in magnetic fields [ A/m ] |
B100 |
| — The coercive force (not more than), [ A/m ] |
Hc |
| — Magnetic permeability (not more than), [ MH/m ] |
Umax |
| — Specific losses (no higher) at a frequency of 50 Hz and magnetic induction of 1.0 T [ W/kg ] |
P1.0/50 |
| — Magnetic induction T (not less) in magnetic field of 100, in magnetic fields [ A/m ] |
B100 |
Buy at best price
The range of products from the alloy 33NK 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.
