Tape, a circle, a wire 32NKD - EI630A
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 32НК | EP475 | Delivery from the stock, in stock | |||
| 32НКД | EI630A | Delivery from the stock, in stock | |||
| 32НКА | Delivery from the stock, in stock |
Relevance
Precision alloys possess unique physical and technical qualities (thermal, elastic, magnetic, electrical), due to chemical balance. the composition, manufacture and thoroughness of treatment, lack of unnecessary impurities. This group contains high alloys. based on copper, iron, niobium, nickel, cobalt. Precision alloy with a given 32NKD TFLE intended for instruments parts maximum precision for which the temperature range -60 to + 100 ° C required size constancy. Coefficient of linear expansion in the temperature range -60 to + 100 ° C is 1.0 [1 / ° C].
Mechanical characteristics 32NKD alloy. When the alloy temperature of 20 ° C.
| assortment | Eg. | The size | sre | y | d5 | sT | KCU | Heat treatment |
|---|---|---|---|---|---|---|---|---|
| - | - | mm | MPa | % | % | MPa | kJ / m2 | - |
| 440−480 | 38−45 | Annealing |
The physical characteristics of the alloy 32NKD
| hail | MPa | W / (m · deg) | 1 / Grad | kg / m3 | Ohm m | J / (kg · °) |
|---|---|---|---|---|---|---|
| T | E 10- 5 | l | 106 a | r | R 109 | C |
| 20 | 1.44 | 780 |
The percentage of
| Mn | Si | C | Ni | Co | P | S | Cu |
|---|---|---|---|---|---|---|---|
| to 0.4 | 0.2 | 0.05 | 31.5 — 33 | 3.2 — 4.2 | to 0.015 | to 0.015 | 0.6 — 0.8 |
| The linear coefficient of thermal expansion αsr · 10−6 K-1 over the temperature range, ° C | Heat treatment of samples and blanks |
|---|---|
| 20−100 | |
| Not more than 1.0 | Tempering temperature samples (840 ± 10) ° C, tempering at a temperature of blanks (315 ± 10) ° C, cooling in water, exposure 1 hour cooling container or furnace. |
| application | Technical properties |
|---|---|
| An alloy with a predetermined precision 32NKD TFLE details of devices intended for the highest possible accuracy, for which a range of climatic temperatures required size constancy. | The alloy in the hardened condition a minimum TKLRx1000000 in the range -60 +100 ° C a temperature no higher than 1.0 [1 / ° C]. |
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 |
application
Scope of innovative technologies, precision instrument making, production of precise electronic sensors, home appliances, laser optics, measuring equipment metrology. Production of transformers, memory components of computers, microphones core, magnetic circuits for use in the marine environment, magnetic antennas.
Supply
All products are certified 32NKD 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 the best 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.
