Some standard content:
National Standard of the People's Republic of China
Precision alloy grades
Designation of precision alloys1 Subject content and scope of application
GB/T 15018-94
Replaces GBn291-89
This standard specifies the classification of precision alloys, the method of indicating alloy grades, the naming rules and the general chemical composition of various alloy grades. This standard applies to the classification of various precision alloys, the method of indicating alloy grades. Naming and the general chemical composition of alloy grades. 2 Classification
2.1 Precision alloys are divided into six categories according to their main physical properties: soft magnetic alloys, deformable permanent magnetic alloys, elastic alloys, expansion alloys, thermal bimetallic and precision resistance alloys.
3 Terminology
3.1 Soft magnetic alloys generally refer to ferromagnetic or ferrimagnetic alloys with a coercivity of less than several hundred amperes per meter. 3.2 Deformable permanent magnetic alloys generally refer to deformable ferromagnetic or ferrimagnetic alloys with a coercivity greater than 10*amperes per meter. 3.3 Elastic alloys are alloys with specific elastic properties. 3.4 Expansion alloys are alloys with specific linear thermal expansion coefficients. 3.5 Thermobimetallic materials are composite materials composed of two or more layers of metals or alloys with different linear thermal expansion coefficients. 3.6 Precision resistance alloys are resistance alloys with small absolute values of resistance temperature coefficient and absolute values of thermoelectric potential to copper and good stability. 4 Grade indication method
4.1: Precision alloy grades are indicated by combining Arabic numerals with Chinese phonetic letters. 4.2 The letter "I\ (the first letter of the Chinese pinyin "jing" for "精") and the number in front of it indicate the type of precision alloy. That is,
soft magnetic alloy
deformation permanent magnetic alloy
elastic alloy
expansion alloy
5J--thermal bimetal
6J--precision resistance alloy
4.3 The second digit after the letter "1" indicates the serial number of different alloy grades (except for thermal bimetal). The serial number starts from 01 and can be compiled to 99. In principle, the serial number of the alloy grade should be expressed as the median percentage of the main element (except iron). If the alloy serial number is repeated, The serial number of an alloy can be expressed as the median of the sum of the percentage of the main element and the percentage of another alloy element, or as the upper (or lower) limit of the percentage of the main element, to distinguish them.
4.4 For alloys with different properties due to different production processes, or alloys with different alloy components (including those with the same base wood) but different uses and performance requirements, when they must be distinguished, they should be marked with Chinese phonetic letters (the first letter of the Chinese phonetic letter indicating the main characteristics or use of the alloy) after the serial number to distinguish them. Approved by the State Bureau of Technical Supervision on April 4, 1994, and implemented on May 1, 1994
GB/T 15018-94
4.5 Thermocouple, the first and second digits after the letter "J" represent the integer of the nominal value of the specific bending (unit is 10-\/℃), the third and subsequent digits represent the nominal value of the resistivity, and the letters A and B after the digits represent two thermocouple grades with the same passive layer and different active layers.
5 Nomenclature of grades
5.1 After scientific research and trial production, the product is formally organized and identified by the management department and transferred to batch production. The precision alloy grades produced shall be reported to the standard administration department by the unit applying for conversion or the key research unit, and the bidder shall name them according to the provisions of this standard. 6 Grades and their chemical compositions
6.1 Soft magnetic alloy grades and their chemical compositions are shown in Table 1. 6.2 Deformation permanent magnet alloy grades and their chemical compositions are shown in Table 2. 6.3 Elastic alloy grades and their chemical compositions are shown in Table 3. 6.4 Expansion alloy grades and their chemical compositions are shown in Table 4. 6.5 Thermodynamic bimetallic grades and their component layers are shown in Table 5. 6.6 Precision resistance alloy grades and their chemical compositions are shown in Table 6. .7 The chemical compositions of each alloy grade specified in this standard are only used to represent the usual chemical composition range of the alloy grade. It is allowed to appropriately adjust the chemical composition range in the product standard or contract or agreement, or to make special restrictions on residual elements and harmful impurities. Table 1 Soft magnetic alloy grades and chemical compositions
Alloy grade
Not more than
0.0150.015
0.0 150.015
0.015(.015
0.0150.015
0.030.0200.020
0.03[0.0200.02 0]
0.04!0.0200.020
0.040,020|0.020
0.04,0.0200.020
0.041.020 0.020
min, %
other elements
alloy grade
0.05.0200.020
0.030.0200.020
0.030.02m0.020
0. 050.020 0. 020
1140 1 0.030.0200.020
11460.030.0200.020
0.030.0200.020
0.030.0200.020|| tt||0.030.0200.020
0.030.020
0.0200.020
0.020:0.020
0.030.020 0.020
1 J 760.03
1J77. 0.03
0.0200.020
0.0204.020
0.03 0.0200.020
0.03.0.0200.024
0.030.0200.020
0.020.0,020
0.020n020
0, 30 -
0, 15 ~
0, 30 --
GB/T15018—94
Continued Table 1
Minutes, %
Other elements
Alloy grade
1↓88
9.03o,0200.020
0.030.0200.020
0.030.0200.020
0.030,0200.024
Not more than
0.030.0200.020
Note: 1) is 1"6 in the product standard.
Not more than
0.0200.025
0.0200.025
0.0200.025
0.0200.025
0.0200.025
<0.030.0250.025
0.030.02
0.0250.025
0.0200.025
GB/T15018—94
Continued Table 1
80,5
Deformed permanent magnet alloy grades and chemical composition
Other elements
2 J 32
not greater than
0.120.0200.025
0.020/0.025
0.0300.030
40.030.030 0,030
0.0300.030
0.0200.030
868-10.0200.030
o.0 200.030
0.0250.025
0.030.020,020
0,030.0200.020
0.03 0.020 0. 020
CB/T 15018—94
Continued Table 2
1), 2), and 3) are the product specifications respectively. Note:
not more than
≤ 0. 05 0.020 0. 020
0.020.030
o.0100.01n
.0100.0
41,00! 0.80
points, %
11,0 ~
11,5 ~
2J9.
Elastic alloy grade and chemical composition
points, %
Other elements
Not more than
0.0100.010
0.0200.020
0.0200.020
0.0150.015
<.0.050.0200.0200.80
40.030.005 0.010
0.050.0200.0200.80
GB/T 15018—94
Continued Table 3
: 1) and 2) are respectively 3"1, 3J9 in the product standards
not more than
0.050.0200,020
0.120.0200,0201.00
0.030,0200.020
0.050.0200.020
0.050.0200,020
0050.02 00.020
0.050.0200.020
0.050.0200.020
0.050.0200.020
~ points, %
Expansion alloy grades and chemical composition
points, %
The elements
[C, added directly
0.50.1~0.2
Other elements
Not more than
0.050. 020|0. 020
0.100.0200.020
0.0200.020
3.050.020 0.020 | | tt | | 0.0200.020 | | tt | | 0.050.0200.020 | 0.020
Note, 1) is the 4″6 in the difficult product standard.
GB/T15018—94
Continued Table 4
Minutes, %
Table 5 Thermal bimetallic grades and component layers
Thermal bimetallic grades
5!20110
5114140
5J15120
5J1378
5J E480
511478
High expansion layer
Mn72Nii0C218
M72Ni10C u18
M72Ni 10Cu18
Ni20C15
Ni22Cr3
Ni19Mn7
Intermediate layer
17,5 ~ 1
Other elements
45.0 ~ 46.t
YuiAI1
Ni45Cr6
Hot bimetallic grade
5J1578
5J1017
5J1416
5#1070
510756
5I1306A
5J1306B
5J1411A
5J1411B
511417A
5J1117B
5J1220A
5J1220B
5J1325A
5J1325B| |tt||5J1430A
5J1430B
5J1435A
5J1435B
5J1440A
511408
5J1455A
5J1155B
5J1075|| tt || GB/T15018-94 | 6
Ni22C3
Ni20Mn6
Ni22Cr3
Ni 20Mn 6
Ni22Cr3
Ni20Mn6
Ni22Cr3
Ni20MnB
Ni22Cr3
Ni20Mn6
Ni22Cr3
Ni20Mn６
Ni22Cra
Ni20Mn6
Ni22C+3
Ni 16C i11
Low tension layer
Ni20Co26Cr8
. Alloy
Not much lower
GB/T 15018—94
Resistance alloy grade and chemical composition
0.40~1.30
0.40~1.30
0.50~1.50
1.00~3,00
0.90~1.50
55.0 ~61.0
15.0~18.0
points, %
20.0~23.0
19.0 ~21.5
19.0~21.5
19.0 ~21.5
Al
GB/T 15018-94
Appendix A
Main characteristics and uses of precision alloy products (reference)
The main characteristics and uses of various precision alloy product grades are shown in Table A:1. Table A1
Main characteristics and uses of precision alloy products Alloy grade
1 J46, 1 J 60, 1 J54
1J76.1J77
1J79, 1J80
1J 85, 1J86
1J34, 1J51
1J52, 1J65
1 67, 1J83
1J301331
1J32, 1133
1J36.1I17
has higher saturation magnetic induction intensity and magnetic permeability, only high initial magnetic permeability
it has a rectangular hysteresis loop and higher saturation magnetic induction intensity
has a relatively high saturation magnetic induction density, low residual magnetic induction density and, a certain anti-atmospheric erosion ability, higher saturation magnetic induction density and magnetic permeability, higher saturation impact expansion coefficient and saturation magnetic induction intensity
higher magnetic permeability and high resistivity
within the ambient temperature range, the induction intensity changes rapidly with temperature
higher saturation magnetic induction density, lower Residual impact induction strength, corrosion resistance in water vapor, salt spray or hydrazine media
In a wider range of magnetic field, degree and frequency, the magnetic permeability changes very little
High saturation magnetic induction intensity, high Curie point and high magnetostriction coefficient
Mainly used
Various transformers, rectifiers, and electromagnetic clutch cores working in medium magnetic fields
Various transformers, mutual inductors, magnetic amplifiers, shunt coil cores and magnetic shields working in medium magnetic fields. Magnetic amplifiers, chokes, rectifiers, and computer transposition elements in electromagnetic valves, electromagnetic clutches, and iron cores and inductance components
Micromotors, transformers, magnetic amplifiers, and relay cores working in medium magnetic fields. It can replace 1146 alloy to make magnetostrictive transducer elements, transformers, relay cores, magnetic shields and high-frequency elements of frequency dividers, electromagnetic circuits and water magnetic circuits, tunnel shunt compensation elements, solenoid valves in various control systems that work under the influence of medium, temperature and pressure, constant inductance elements, end welding of electromagnet pole heads, magnetrons, telephone headset vibration membranes, torque motor rotors, magnetostrictive transducer cores, alloy grades, 1 J87, 11 88, 1J89, 1190, 2 J 07, 2 J09, 2J10, 2J11, 2J51, 2J52, 2J31, 2J32, 2J21.2J23
2J252J27
2 363, 2 J64
2 J65, 2167
2 383. 2 J84. 2 J85
3J53P, 3J58||tt ||GB/T 15018—94
Continued Table A1
High initial magnetic permeability, high hardness, high resistivity, and magnetic insensitivity to stress, good wear resistance, excellent magnetic properties under low working field Hysteresis characteristics have excellent magnetic transfer characteristics in medium and high working magnetic fields.
has good magnetic travel characteristics in low working magnetic fields and good avoidance characteristics in medium working magnetic fields. It has high saturation magnetic induction The magnetic properties are stable. It has good hysteresis characteristics in medium and high working magnetic fields. The magnetic energy product is low, but easy to process. The magnetic energy product is equivalent to that of cast aluminum. Drill 5, and good processing performance
After aging, it can obtain high elasticity and strength, and it is corrosion-resistant, weakly magnetic
High elasticity and strength, within the range of 60～ +100℃ It has a low elastic modulus temperature coefficient in the range of -40 to +80°C and a low frequency temperature coefficient
in - Positive frequency temperature coefficient in the range of 40 - B0 ℃
Higher anti-magnetic performance than 3153, more stable frequency temperature coefficient
Non-magnetic, shock-resistant, wear-resistant
No Magnetic, corrosion resistant
Non-magnetic, corrosion resistant, high elasticity, high strength and good fatigue resistance
Various tape machine heads, core pieces, as well as audio machines, high-frequency devices The core of the drink
In a low magnetic field, the rotor of the hysteresis motor works in a medium magnetic field. The rotor of the magnetic leakage motor working in a high magnetic field is the same as that of the hysteresis motor working in a low magnetic field. Small cross-section permanent magnet components with complex rotor shapes in hysteresis motors
overall Hysteresis motor rotor
In the occasion where the magnetic performance is not high, it is used as magnetic needle and other water-formaldehyde components
complex shape, small size of permanent components
various in the meter industry Diaphragms, diaphragm boxes, bellows, springs and other elastic elements
Vibrators in mechanical filters, tuning forks in frequency harmonizers, reeds in resonant relays and other components are used to convert energy into vibration in mechanical filters. As well as composite components
watches, watch hairsprings
instrument power, instrument shaft tips
instrument shafts
various instrument springs and Other elastic elements
4 J32, 4 J36
4 J06;4J47
4 J424 145
4↓33, 4 134
4 J78, 4 J
5J20110|| tt||5J14140
GB/T15018-94
Continued Table A1
It has a large magneto-induced secondary contraction coefficient and a low mechanical quality factor, and the vertical grip propagation speed changes little. Magnetic, high elasticity, high strength, high hardness, low linear thermal expansion coefficient in the range of 20~100 ℃
In the range of 20~100C, the soldier has a low linear thermal expansion coefficient
, and it is easy to Cutting
has a low linear thermal expansion coefficient in the range of - 20 ~ + 30 UC. It is a high temperature low expansion alloy. It has a linear thermal expansion coefficient similar to that of soft glass in a certain temperature range. It has a linear thermal expansion coefficient similar to that of hard glass in the range of 2U~0T. It has a linear thermal expansion coefficient similar to that of soft glass in a certain temperature range. . Corrosion resistance
In the range of 20～400℃, it has a certain linear thermal expansion coefficient
In the range of 60～+600℃, it has the same linear thermal expansion coefficient as 95%
A 1,0, ceramic Similar linear thermal expansion coefficient has a certain linear thermal expansion coefficient in the range of 20 ~ 50. It has high dimensional stability
and has a medium linear thermal expansion coefficient in the range of 0 from room temperature. Non-magnetic, corrosion-resistant, with high resistance to scratching
High thermal sensitivity and high resistivity
High resistivity and medium thermal sensitivity
Mechanical filter Transducer wire and coupling wire clocks, timer springs and elastic components of instruments Various instruments requiring dimensional stability, instrument parts, thermal bimetallic passive layers, resonant cavities
Various instruments requiring dimensional stability, Instrument parts, resonant cavity
In the vacuum industry, various klystrons, micro-tube spectral resonant cavity, etc. are made
In the electric vacuum industry, Matching and sealing with corresponding soft glass
In vacuum industry, matching and sealing with soft glass or corresponding ceramic
In vacuum industry, matching and sealing with hard glass in vacuum industry Neutralize and seal with corresponding hard glass
In the electric point air industry, match and seal with corresponding soft glass
Dumet wire core
With 95%A1, 0, etc. ceramics for matching sealing, precision wire mosquito rulers with stable dimensions, etc.
used as non-magnetic non-matching stool sealing materials in gyroscopes and other electric vacuum devicesHysteresis motor rotors working in medium and high magnetic fields. Magnetic leakage motor rotors working in low magnetic fields. Hysteresis motor rotors working in medium magnetic fields. Complex shaped small cross-section permanent magnet elements
Integral hysteresis motor rotors
In places where magnetic properties are not required, as magnetic needles and other water-formaldehyde elements
Complicated shaped and small size permanent magnet elements
Various diaphragms, diaphragm boxes, bellows, springs and other elastic elements in the meter industry
Vibrators in mechanical filters, tuning forks in frequency harmonizers and reeds in resonant relays, etc. Transducers in mechanical filters and composite relays
Watches, watch hairsprings
Instrument power, instrument shaft tips
Instrument shafts
Various instrument springs and other elastic elements working below 400℃
4 J32, 4 J36
4 J06; 4J47
4 J424 145
4↓33, 4 134
4 J78, 4 J
5J20110
5J14140
GB/T15018-94
Continued Table A1
It has a large magneto-induced contraction coefficient and a low mechanical quality factor, small change in longitudinal propagation velocity, no magnetism, high elasticity, high strength, high hardness, low linear thermal expansion coefficient in the range of 20-100 ℃
It has a low linear thermal expansion coefficient in the range of 20~100C, and is easy to cut
It has a low linear thermal expansion coefficient in the range of -20 ~ +30 UC. It is a high temperature and low expansion alloy. It has a linear thermal expansion coefficient close to that of soft glass in a certain temperature range. It has a linear thermal expansion coefficient close to that of hard glass in a certain temperature range. It has a linear thermal expansion coefficient close to that of soft glass in a certain temperature range. It is corrosion resistant. It has a linear thermal expansion coefficient close to that of 95% A1,0, ceramics in the range of 60 to +600℃. It has a linear thermal expansion coefficient close to that of 20 ~ 50℃. It has high dimensional stability. It has a medium linear thermal expansion coefficient in the range of room temperature to 0℃. Non-magnetic, corrosion-resistant, with high resistance to scratching
High thermal sensitivity and high resistivity
High resistivity and medium thermal sensitivity
Transducer wire and coupling wire in mechanical filter, clock, timer spring and elastic element of instrument, various instruments requiring dimensional stability, instrument parts, thermal bimetallic passive layer, resonant cavity
Various instruments and instrument parts requiring dimensional stability, resonant cavity
Manufacturing various klystrons, micro-tube spectral resonator cavities, etc. in vacuum industry
In the electric vacuum industry and related Matching and sealing with corresponding soft glass
Matching and sealing with soft glass or corresponding ceramics in vacuum industry
Matching and sealing with hard glass in vacuum industry Matching and sealing with corresponding hard glass in vacuum industry
Matching and sealing with corresponding soft glass in vacuum industrybZxz.net
Dumet wire core
Matching and sealing with 95%A1,0, etc. ceramics requiring dimensional stability, etc.
Used as non-magnetic non-matching sealing material in gyroscopes and other vacuum devicesHysteresis motor rotors working in medium and high magnetic fields. Magnetic leakage motor rotors working in low magnetic fields. Hysteresis motor rotors working in medium magnetic fields. Complex shaped small cross-section permanent magnet elements
Integral hysteresis motor rotors
In places where magnetic properties are not required, as magnetic needles and other water-formaldehyde elements
Complicated shaped and small size permanent magnet elements
Various diaphragms, diaphragm boxes, bellows, springs and other elastic elements in the meter industry
Vibrators in mechanical filters, tuning forks in frequency harmonizers and reeds in resonant relays, etc. Transducers in mechanical filters and composite relays
Watches, watch hairsprings
Instrument power, instrument shaft tips
Instrument shafts
Various instrument springs and other elastic elements working below 400℃
4 J32, 4 J36
4 J06; 4J47
4 J424 145
4↓33, 4 134
4 J78, 4 J
5J20110
5J14140
GB/T15018-94
Continued Table A1
It has a large magneto-induced contraction coefficient and a low mechanical quality factor, small change in longitudinal propagation velocity, no magnetism, high elasticity, high strength, high hardness, low linear thermal expansion coefficient in the range of 20-100 ℃
It has a low linear thermal expansion coefficient in the range of 20~100C, and is easy to cut
It has a low linear thermal expansion coefficient in the range of -20 ~ +30 UC. It is a high temperature and low expansion alloy. It has a linear thermal expansion coefficient close to that of soft glass in a certain temperature range. It has a linear thermal expansion coefficient close to that of hard glass in a certain temperature range. It has a linear thermal expansion coefficient close to that of soft glass in a certain temperature range. It is corrosion resistant. It has a linear thermal expansion coefficient close to that of 95% A1,0, ceramics in the range of 60 to +600℃. It has a linear thermal expansion coefficient close to that of 20 ~ 50℃. It has high dimensional stability. It has a medium linear thermal expansion coefficient in the range of room temperature to 0℃. Non-magnetic, corrosion-resistant, with high resistance to scratching
High thermal sensitivity and high resistivity
High resistivity and medium thermal sensitivity
Transducer wire and coupling wire in mechanical filter, clock, timer spring and elastic element of instrument, various instruments requiring dimensional stability, instrument parts, thermal bimetallic passive layer, resonant cavity
Various instruments and instrument parts requiring dimensional stability, resonant cavity
Manufacturing various klystrons, micro-tube spectral resonator cavities, etc. in vacuum industry
In the electric vacuum industry and related Matching and sealing with corresponding soft glass
Matching and sealing with soft glass or corresponding ceramics in vacuum industry
Matching and sealing with hard glass in vacuum industry Matching and sealing with corresponding hard glass in vacuum industry
Matching and sealing with corresponding soft glass in vacuum industry
Dumet wire core
Matching and sealing with 95%A1,0, etc. ceramics requiring dimensional stability, etc.
Used as non-magnetic non-matching sealing material in gyroscopes and other vacuum devices
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.