Tape 40KHNM - EI995
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 40КХНМ | EI995 | Delivery from the stock, in stock |
Characteristic
Mark 40KHNM belongs to the group of precision alloys with specified elasticity. It has unique physical and mechanical properties (magnetic, thermal, elastic, electrical), thanks to the accuracy of the composition, careful manufacturing and processing, the absence of unnecessary impurities. This group includes high-alloy alloys based on iron and nickel with additives of manganese, copper and other elements.
Percent composition
| Si | C | Fe | Mn | P | Ni | S | Mo |
|---|---|---|---|---|---|---|---|
| 1.8 -2.2 | Up to 0.5 | 10.74 -18.73 | 15 -17 | 19 -21 | Up to 0.02 | Up to 0.02 | 39 -41 |
Mechanical properties of 40KhNM alloy at 20 ° C.
| Assortment | For example. | The size | ST | Sv | Y | KCU | D5 | Thermoobre. |
|---|---|---|---|---|---|---|---|---|
| - | - | Mm | MPa | MPa | % | KJ / m2 | % | - |
| 2400−3000 | 3200−3800 | Aging 400 — 450oC, 4h, Hardening1100 — 1150oC, oil, | ||||||
| Hardened tape | 0.1 — 2 | 1670 | Aging 450 — 550oC, 2 — 4h, | |||||
| Wire | 2450−2650 |
Notation
Physical properties of the alloy:
| Description | Designation |
|---|---|
| — Data acquisition temperature of alloy [Grad] | — T |
| — Modulus of elasticity of the first kind, [MPa] | — E |
| — Coefficient of thermal expansion (at 20 ° C), [1 / degree] | -a |
| — Specific electrical resistance [Ohm · m] | -R |
| — Specific gravity [g / cm3] | -r |
| — Coefficient of thermal conductivity [W / (m · deg)] | -l |
| — Specific heat (at 20 ° C), [J / (kg · deg)] | -C |
Mechanical properties:
| Description | Designation |
|---|---|
| — Limit of proportionality (yield stress for permanent deformation) [MPa] | ST |
| — Short-term strength [MPa] | Sv |
| — Relative narrowing [%] | Y |
| — Elongation at break [%] | D5 |
| — Brinell hardness, in [MPa] | Hb |
| — Impact strength [kJ / m2] | KCU |
Magnetic properties:
| Description | Designation |
|---|---|
| — Coercive force (within limits) [A / m] | Hc |
| — Magnetic permeability (not more than) [MH / m] | Umax |
| — Specific losses (not more) at a frequency of 50 Hz, and a magnetic induction of 1.0 T [W / kg] | P1.0 / 50 |
| — Magnetic induction Tl (not less) at a magnetic field strength of 100, in magnetic fields [A / m] | B100 |
| — Coercive force (not more than), [A / m] | Hc |
| — Magnetic permeability (not more than), [MH / m] | Umax |
| — Specific losses (no more) at a frequency of 50 Hz and a magnetic induction of 1.0 T [W / kg] | P1.0 / 50 |
Weldability:
| Designation | Description |
|---|---|
| Boundedly welded | — Preheating to t ° 100−120 ° С is required with the final heat treatment |
| no limits | — there is no need for preheating and final heat treatment |
| Hard to weld | — Preheating to t ° 200−300 ° С is required with the final heat treatment |
Using
Springs of watch mechanisms, sensor sensors, cylindrical twisted springs, surgical instruments, cores of measuring electrical appliances. Permissible operating temperature is not more than 400 ° C.
Supply
All submitted products of mark 40КХНМ are certificated. The technical documentation includes data on the chemical composition, the maximum percentage of impurities; Mechanical qualities of products. At us it is possible to buy in bulk the most various semi-finished products for scale manufactures. We also offer good conditions for retail customers. You will be satisfied with the level of service and promptness of service.
Buy at a bargain price
All precision alloys sold by Electrovek-Steel LLC comply with the state standard of quality. We supply rolled metal of standard and non-standard sizes in the shortest time from warehouses located on the territory of Russia and Ukraine. High quality, reasonable prices and a wide choice of products determine the face of our company. Becoming our regular customer, you can count on a system of discount discounts. Cooperation with us will help you realize any engineering intentions. We are waiting for your orders on evek.org.
