Precision Alloys
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Characteristics of precision alloys
Precision alloys include materials with a calibrated chemical composition and certain specified qualities. By their properties they are divided into the following groups:
— magnetically-rigid
— magnetically soft
— with given elasticity properties
— with a specified thermal coefficient of linear expansion
— superconducting
— Thermobimetals.
A short list of precision alloys
| Notation | Or | Using | GOST, TU |
|---|---|---|---|
| EP685 | 27KH | Rotors, stators, electric motors, designed to work at high temperatures. Tapes, sheets, hot-rolled, rods. Has high induction of saturation | 10160−75, 10994−74 |
| 29KN, 29NK-vi | The coefficient of thermal expansion is similar to that of radio electronic equipment, tapes, sheets, wire, forged bars. | 14082−78 | |
| EP475vi, silt | 32NK, 32KN-VI | Polished products of complex shape, measures of length, forged rods. Alloys with low or min TKLR | 14−131−493−80, 14−1-4422−88 |
| EI630A, superinvar | 32KKD | Details of precision instruments operating over a wide temperature range. Tapes, sheets, wire, forged rods. Alloys with low or min TKLR. | 14082−78 |
| Н33К17, ЭП139 | 33 CN | Connection with mica, glass and ceramics. | 14082−78 |
| Invar | 36H, 36H-vi | Parts with constant dimensions over a wide range of temperatures. Tapes, sheets, wire, forged rods. Alloys with low or min TKLR. | 10994−74, 14082−78 |
| permalloy | 36KNM, 36KMP | Magnetic cores of control systems of electromagnets in sea water. They have high corrosion resistance. | 10160−75, 10994−74 |
| 36НХТЮ-ви, ЭИ702, элинвар | 36NXTU | Details of instruments operated up to t 250 ° C. Tapes, sheets, wire, forged rods. Non-magnetic corrosion-resistant alloys. | GOST 10994−74, 14119−85 |
| EP51 | 36НХТЮ5М | Details of instruments operated up to t 350 ° C. Tapes, sheets, wire, forged bars. Non-magnetic corrosion-resistant alloys. | |
| EP52 | 36НХТЮ8М | DDetali devices operated up to t 400 ° C. Tapes, sheets, wire, forged rods. Non-magnetic corrosion-resistant alloys | |
| 38KKD | Alloys with medium and low TKLR, similar to sapphire, glass. Tapes, sheets, wire, forged rods. | 14082−78, 10994−74 | |
| EI995 | 40KHNM | Hourly springs, cylindrical coil springs, operating up to t ° 400 ° C, surgical instruments, cores of electrical measuring instruments ,. Ribbon, wire. Non-magnetic corrosion resistant alloys. | 10994−74 |
| 40ХНЮ-ВИ | Forged rods. Non-magnetic corrosion resistant alloys. | ||
| 40H, 42H, H42, Feni | 42H, 42H-vii | Vacuum technology. Tapes, sheets, wire, forged rods. Alloys with an average TKLR value | 14082−78 |
| 42NXTU | Tapes, sheets, wire, forged rods. Alloys with a modulus of elasticity. | ||
| 44NXTU | Tapes, sheets, wire, forged rods. Alloys with a modulus of elasticity. | ||
| 45H | Tapes, sheets, wire, forged rods. Alloys with max magnetic permeability and saturation induction | ||
| EP218 | 45NHT | Tapes, sheets, wire, forged rods. Alloys with a modulus of elasticity. For the production of electromechanical resonators. Devices. | 14−1-3074−80 |
| 47ND | Alloys from media. And min TKLR for soldering with soft glass, mica and ceramics. Tapes, sheets, wire, forged rods. | 14082−78 | |
| 47 НХР | Wire, tape Alloys with medium. And min TKLR | ||
| 49KF | Pole tips, cores of solenoids and magnets. Tapes, sheets, wire, forged rods. Alloys from media. And min TKLR | 10160−75, 10994−74 | |
| EP207, Permendur | 49K |
Pole tips, cores of solenoids and magnets. Tapes, sheets, wire, forged rods. Alloys from media. And min TKLR | 14−1-1185−75 |
| 50Н, ЭИ676, ЭИ467, permalloy | 50H | Magnetic-soft alloy for the cores of compact inter-lamp power transformers, chokes, relays. | 10160−75 |
| permalloy | 50NP | The cores of magnetic amplifiers, rectifiers, commuting chokes. Have a rectangular loop hysteresis. Cold rolled strips. | 14−1-841−73 |
| permalloy | 50NHS | Cores of pulse transformers. Tapes, sheets, wire, forged rods. Alloys with a maximum magnetic permeability and high ud. Resistance. | 14−131−722−89 |
| 52H | Tapes, sheets, wire. Alloys with medium and min TKLR. | ||
| 56DGNH | Forged rods. Non-magnetic alloys with given TKLRs | ||
| EP578, EP578-vi, permalloy | 68НХВКТЮ, 68НХВКТЮ-ВИ | Sensitive elastic elements operating at t ° -196 ° C + 500 ° C. Tapes, sheets, wire, forged rods. Non-magnetic corrosion-resistant alloys | 14−1-4470−88 |
| permalloy | 79NM | Magnetic-soft alloy for compact cores of transformers, chokes and relays. | 10160−75 |
| 80NM | Tapes, sheets, wire, forged rods. Alloys with max magnetic permeability of weak fields. | ||
| 80НМВ-ВИ | Ribbons, sheets. Non-magnetic alloys with given TKLRs | ||
| permalloy | 80HXS | Magnetic-soft alloy for the cores of magnetic heads. Tapes, sheets, wire, forged rods. Alloys with max magnetic permeability of weak fields. | 10160−75 |
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