Tape, a circle, a wire 33NK - EP139
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 33НК | EP139 | Delivery from the stock, in stock |
Characteristic
33NK alloy with mean coefficient of linear expansion (6.0−9.0) 1x10−6 / ° C in the temperature range from -70 to + 470 ° C is intended for connection with mica, ceramics, glass brand C 72−4. 33NK and 33NK-VI for use in or upgraded to the newly created technology to 01/01/91 was not allowed. The melting point of the alloy — about 1450 ° C. It refers to a high-alloy iron-based alloys, copper, nickel, cobalt, and niobium. It has unique physical and technical qualities (thermal, elastic, magnetic, electrical), due to chemical balance. the composition, manufacture and thoroughness of treatment, lack of unnecessary impurities.
application
Scope of innovative technologies, precision instrument making, production of precise electronic sensors, home appliances, laser optics, metrology measuring equipment, memory components of computers, microphones core, magnetic antennas.
The percentage of
| Si | C | Fe | Mn | P | S | Ni | Co |
|---|---|---|---|---|---|---|---|
| 0.3 | 0.05 | 48.22 — 51 | to 0.4 | to 0.015 | to 0.015 | 32.5 — 33.5 | 16.5 — 17.5 |
The physical properties of the alloy NC 33.
| MPa | hail | 1 / Grad | J / (kg · °) | kg / m3 | W / (m · deg) | Ohm m |
|---|---|---|---|---|---|---|
| E 10- 5 | T | a June 10 | C | r | l | R September 10 |
| 1.42 | 20 | 8200 | 420 |
Mechanical properties 33NK alloy at a temperature of 20 ° C.
| assortment | The size | sT | sre | Eg. | KCU | y | d5 | Heat treatment. |
|---|---|---|---|---|---|---|---|---|
| - | mm | MPa | MPa | - | kJ / m2 | % | % | - |
| Cold-rolled strip, 14 GOST 080−78 | 930 |
designations
Physical properties of the alloy:
| Description | designation |
|---|---|
| — Temperature data acquisition of the alloy [Castle] | — T |
| — Modulus of elasticity of the 1st kind, [MPa] | — E |
| — Coefficient of linear thermal expansion (at 20 ° C) [1 / deg] | -a |
| — The electrical resistance [ohm · m] | -R |
| — Specific weight [g / cm3] | -r |
| — Thermal conductivity [W / (m · deg)] | -l |
| — Specific heat capacity (at 20 ° C) [J / (kg · deg)] | -C |
Mechanical properties:
| Description | designation |
|---|---|
| — The limit of proportionality (the yield strength for the residual strain) [MPa] | sT |
| — Short-term strength [MPa] | sre |
| — Reduction [%] | y |
| — Elongation at break [%] | d5 |
| — Brinell hardness in [MPa] | HB |
| — Impact strength [kJ / m2] | KCU |
Magnetic properties:
| Description | designation |
|---|---|
| — The coercive force (within) [A / m] | Hc |
| — Permeability (max) [mH / m] | Umax |
| — Specific losses (maximum) at 50 Hz and 1.0 T. The magnetic flux density [W / kg] | P1.0 / 50 |
| — T. Magnetic induction (at least) at a voltage of the magnetic field 100 in a magnetic field [A / m] | B100 |
| — The coercive force (not more), [A / m] | Hc |
| — Permeability (max) [mH / m] | Umax |
| — Specific losses (max) at a frequency of 50 Hz and a magnetic induction of 1.0 T [W / kg] | P1.0 / 50 |
Weldability:
| designation | Description |
|---|---|
| limited weldability | — Needs to preheating t ° 100−120 ° C with a final heat treatment |
| no limits | — No need for preliminary heating and final heat treatment |
| difficult to weld | — Needs to preheating t ° 200−300 ° C with a final heat treatment |
Supply
All products are certified 33NK brand. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk a variety of semi-finished products for large-scale productions. We also offer good conditions for retail customers. You will be satisfied with the level of service and speed of service.
Buy at a bargain price
In stock company «Electrovek-steel» in the presence of a wide range of precision alloys for the best price. It is formed with European rates on non-ferrous metals without the inclusion of the additional costs. Quality Certificate for products including data on chemical composition, limiting the percentage of impurities; mechanical properties. Cooperation with us gives a number of advantages. Our experts will be happy to provide advice when you buy precision alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help you determine not only the optimum parameters of the product, but also offer the best price.
