Ribbon, circle, alloy 32NK - EP475vi
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 32NK | EP475 | Delivery from the stock, in stock | |||
| 32NKD | EI630A | Delivery from the stock, in stock | |||
| 32NKA | Delivery from the stock, in stock |
Relevance
Precision alloy 32NK-VI with a given thermal coefficient of linear expansion is used for parts with polished surface or for joints with soft glass has a temperature coefficient of linear expansion TKLR 1.5x10-6 1/°С in the temperature range from -60 to +100°С. The alloy has unique physical and technical qualities (magnetic, thermal, elastic, electrical) due to the accuracy of composition, thoroughness of manufacturing and processing, absence of unnecessary impurities. These alloys are melted in special induction furnaces, after which the ingots are subjected to forging or rolling.
Applications of
Precision instrumentation, innovative technologies, production of precise electronic sensors, household appliances, laser optics, measuring metrology equipment, computer memory components, microphone cores, magnetic antennas.
| Alloy grade | Classification of alloy | Usage |
|---|---|---|
| 32NK-VI | A precision alloy with a specified temperature coefficient of linear expansion | Alloy 32NK-VI is used for parts with polished surfaces; for joints with soft glass; TKLRx1000000 between -60+20 and +20+100 °C not greater than 1.5 [1/°C] |
Percent composition
| Mn | Si | C | Ni | Cr | P | S | Co |
|---|---|---|---|---|---|---|---|
| up to 0.4 | up to 0.3 | up to 0.03 | 31.5 - 33 | up to 0.1 | up to 0.015 | up to 0.015 | 3.7 - 4.7 |
Notations
Physical properties of the alloy:
| Description | Designation |
|---|---|
| - Alloy data acquisition temperature [Grad] | - T |
| - Modulus of elasticity of the 1st kind, [MPa] | - E |
| - Coefficient of thermal linear expansion (at 20°C), [1/Grad] | -a |
| - Specific electrical resistance [Ohm-m] -R | -R |
| - Specific gravity [g/cm3] -r | -r |
| - Heat transfer coefficient [W/(m-grad)] -l | -l |
| - Specific heat capacity (at 20°C), [J/(kg-grad) | -C |
Mechanical properties:
| Description | Designation |
|---|---|
| - Ultimate yield strength (yield strength for permanent deformation) [MPa] | sT |
| - Tensile strength [MPa] | sT |
| - Ratio constriction [ % ] | y |
| - Tensile elongation [ % ] | d5 |
| - Brinell hardness, in [MPa] | HB |
| - Impact toughness [ kJ/m2 ] | KCU |
Magnetic properties :
| Description | Designation |
|---|---|
| - Coercive force (within) [ A/m] | Hc |
| - Magnetic permeability (not more than) [ MHN/m] | Umax |
| - Losses (not more than) at frequency 50 Hz and 1.0 Tl [ W/kg ] | P1.0/50 |
| - Magnetic induction Tl (not less) at magnetic field strength 100, in magnetic fields [ A/m] | B100 |
| - Coercive force (not less), [ A/m] | Hc |
| - Magnetic permeability (not more than), [ MHN/m] | Umax |
| - Losses (not more than) at frequency 50 Hz and 1.0 Tl [ W/kg ] | P1.0/50 |
weldability:
| Designation | Description |
|---|---|
| Limited weldable | - Must be preheated to 100-120°C with subsequent heat treatment |
| no restrictions | - No need for preheating and final heat treatment |
| Difficult to weld | - Preheating to 200-300°C with final heat treatment necessary |
Delivery
All 32NK-VI grade products are certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities, the mechanical properties of products. From us you can buy in bulk a variety of semi-finished products for large-scale production. We also offer good conditions for retail buyers. You will be satisfied with the level of service and efficiency of service.
Buy at a bargain price
Evek GmbH has a wide range of precision alloys in stock. We supply certified products of domestic and foreign manufacturers. We appreciate the time of our customers, so we are always happy to provide expert help with the choice. Experienced consulting managers are at your service. The quality of the products is guaranteed by the strict observance of production standards. Execution of orders takes minimal time. Wholesale customers are offered discounts.
