GBN 198-1988 Technical requirements for iron-nickel soft magnetic alloys
Some standard content:
National Standard of the People's Republic of China
Technical Conditions for Iron-Nickel Soft Magnetic Alloys
GBn 198-88
Replaces GBn198-83
This standard applies to cold-rolled strips, cold-drawn wires, cold-drawn (rolled) pipes, hot-rolled (forged) flats and bars of iron-nickel based soft magnetic alloys 1J46, 1J50, 1J54.1J76, 1J77, 1J79, 1J80, 1J85 and 1J86 with high permeability and low coercivity in weak magnetic fields, and cold-rolled strips of 1J34, 1J51, 1J52, 1J65, 1J67, 1J83 and 1J403. 1 Dimensions and appearance
1.1 Dimensions
The dimensions and allowable deviations of alloy materials shall comply with the relevant provisions of GBn197-88 "General provisions for dimensions, appearance, surface quality, test methods and inspection rules for soft magnetic alloys". 1.2 Appearance
The appearance of alloy materials shall comply with the relevant provisions of GBn197--88. 2 Technical requirements
2.1 Grade and chemical composition
The grade and chemical composition of the alloy shall comply with the provisions of Table 1. When the magnetic properties of the alloy comply with the provisions of Tables 2 to 6, the chemical composition is allowed to deviate from the range specified in Table 1.
2.2 Smelting method
The alloy is smelted in a vacuum induction furnace, and other smelting methods that can meet the requirements of this standard can also be used, but this should be indicated in the quality certificate.
2.3 Delivery status
The alloy materials are delivered without heat treatment. According to the requirements of the purchaser, they can also be delivered in semi-soft or soft state. Its magnetic properties and mechanical properties shall be subject to the agreement between the supplier and the buyer.
2.4 Magnetic properties
2.4.1 The magnetic permeability μo.4, μo.02, μm, correction H. and square coefficient B:/Bm of the alloy sample after heat treatment shall comply with the provisions of Tables 2 to 6. The saturation magnetic induction intensity B and the magnetic properties of thin strips with a thickness less than or equal to 0.01mm are only provided with data and are not used as a basis for judgment. The elastic magnetic permeability μi and iron loss values P1/400, P1/1000 can also be provided if the buyer requires it. 2.4.2 According to the buyer's requirements, magnetic temperature stability inspection can be carried out, and its indicators shall be subject to the agreement between the two parties. 2.4.3 When ordering according to the magnetic properties of Grade II and Grade III alloys and requiring elastic magnetic permeability μ1 and iron loss values P1/400, P1/1000 as assessment values, it should be indicated in the contract.
2.5 Surface quality
The surface quality of alloy materials shall comply with the relevant provisions of GBn197-88. Test methods
GBn198-88
The test methods of alloys shall be carried out in accordance with the provisions of GBn197-88. Inspection rules
The inspection rules of alloys shall be carried out in accordance with the provisions of GBn 19798. Packaging, marking and quality certificate
The packaging, marking and quality certificate of finished alloy products shall comply with the relevant provisions of GBn11281 "General provisions for packaging, marking and quality certificates of precision alloys". Table 1
Chemical composition%
High magnetic permeability
High saturation magnetic induction
Stress strength soft magnetic
High initial magnetic permeability
Soft magnetic alloy
Moment magnetic alloy
Alloy grade
Not more than
0.0200.60~
0.0200.30~
0.0200.60~
0.0200.30~
00200.30~
0.0200.60~
0.0200.60~
0.0200.30~
0.020/0.30~
0.0200.30~
《0.3080.5~
0.020/0.30~
0.0200.30
0.0200.30~
0.0200.30~
0.020/0.30~
Product Type
Cold Rolled Strip
Hot Rolled (Forged) Flats
Hot Rolled (Forged) Bars
Cold Rolled Strip
Hot Rolled (Forged) Flats
Hot Rolled (Forged) Bars
Cold Rolled Strip
Hot Rolled (Forged) Flats
Hot Rolled (Forged) Bars
GBn 198--88
The DC magnetic properties of high permeability and high saturation magnetic induction soft magnetic alloys are in 0.4A/m magnetic field
Thickness or diameter
0.02~0.04
0.05~0.09
0.10～~0.19
0.20~0.34
0.35~2.50
3～22||tt| |8～100
0.05~0.09
0.10~0.19
0.20~0.34
0.35~0.50
0 .51~1.00
1.10~2.50
0.10~0.19
0.20~0.34
0.35~0.50
0.51~1.00
0.05~0.20
0.02~0.04
0.05~0.09
0.10~0.19||tt ||0.20~0.34
0.35~0.50
0.51~1.00
0.02~0.04
0.05~0.09||t t||0.10~0.19
0.20~0.34
0.35~0.50
3～22
8～100
Magnetic permeability in intensity
Maximum magnetic permeability
Coercive force (under saturation magnetic
not less than
Note: Saturation magnetic induction intensity B is measured with an external magnetic field intensity of 2000~2400A/m. Under induction intensity) H.
not greater than
saturation magnetic induction
intensity B,
product type
cold rolled strip
product type
cold rolled strip
cold rolled strip
cold rolled strip
GBn 198-88
Table 3 AC magnetic properties of soft magnetic alloys with high magnetic permeability and high saturation magnetic induction intensity When the peak value of the magnetic field intensity is 0.4A/m, the elastic magnetic permeability μ
at different frequencies is not less than
Table 4. DC magnetic properties of high initial permeability soft magnetic alloys Magnetic permeability in 0.08A/m magnetic field strength
Thickness or diameter
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.50
0.05~0.09
0.10~0.19
0.20~0.34
0.35~0.50
0.02~0.04
0.05~0.09
0 .10~0.19
0.20~0.34
0.35~1.00
1.10~2.50
2.51~3.00
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.35~1.00
1.10~2.50
maximum magnetic permeability
not less than
coercive force (under saturation magnetic
induction intensity) H.
Not greater than
saturation magnetic induction
intensity B,
product type
cold-rolled strip
hot-rolled (forged) flat
cold (forged) bar
cold-rolled strip
hot-rolled (forged) flat
hot-rolled (forged) bar
cold-rolled strip
thickness or diameter
0.02~0.04
0.05~0.09||tt| |0.10~0.19
0.20~0.34
3~22
0.02~0.04
0.05~0.09
0.10~0.19||tt ||0.20~0.34
0.35~0.50
0.51~1.00
1.10~2.50
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.35~0.50
0.10~0.34
0.35~0.50
0.005~0.01
0.02 ~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.35~1.00
1.10~2.50
2.51~3.00
GBn 198--88
Continued Table 4
Magnetic permeability in 0.08A/m magnetic field
intensity
Maximum magnetic permeability
is not less than
coercive force (under saturation magnetic
induction intensity) H.
is not greater than
saturation magnetic induction!
Strength B
Product Type
Cold Rolled Strip
Hot Rolled (Forged) Flat
Hot Rolled (Forged) Bar
Cold Rolled Strip
Thickness or Diameter
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.35~1.00
GBn 198--88
Continued Table 4
The magnetic permeability in the maximum magnetic permeability
in the magnetic field strength of 0.8A/m is not less than
Note: ①Saturation magnetic induction intensity B, measured under the external magnetic field strength of 800A/m. μm
Coercive force (under saturation magnetic induction intensity) H.
Not greater than
Saturation magnetic induction intensity B
②According to the agreement between the supply and demand parties, when one of the 1J79, 1J80, 1J85 alloys of grades II and III meets the standard, delivery is allowed, but other parameters cannot be worse than grade 1.
Table 5 AC magnetic properties of high initial permeability soft magnetic alloy
Product type
Cold rolled strip
Cold rolled strip
When the peak value of the magnetic field intensity is 0.1A/m,
The elastic permeability at a certain frequency, μ400Hz
is not less than
Alloy grade
1367 :
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.20
0.02~9.09||tt| |0.02~0.04
0:05~0.09
0.02~0.04
0.02~0.04
0.05~0.10
0.005~ 0.01
0.02~0.04
0.05~0.09
0.10~0.50
0.02~0.04
0.05~0.09||t t||0.10~0.19
0.20~0.50
0.005~0.01
0.02~0.04
0.05~0.09
GBn 198--88
Table 6 Magnetic properties of magnetic alloys
In 0.8A/m
magnetic field strength
The magnetic permeability
Maximum magnetic permeability
is not less than
coercive force
! (Under saturation
square coefficient
magnetic induction intensity
degree) H.
Pa/aoo
Pa/3000
not more than
35～65
35～65
saturation magnetic induction
Note: ① Saturation magnetic induction intensity B is measured under an external magnetic field of 2000～2400A/m for 1J34, 1J51, 1J52 and 1J403 alloys, and under an external magnetic field of 800A/m for
1J65, 1J67 and 1J83 alloys. ② Iron loss P1/00 and Pi/3000 respectively represent the iron loss when the frequency is 400Hz and 3000Hz and the peak value of magnetic induction intensity is 1T. ③ The Bm in the square coefficient B./Bm is the magnetic induction intensity when the external magnetic field intensity is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of alloys in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloys Curie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10) Cold hardened
Tensile strength
Cold hardened
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature ranges Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloyThe magnetic permeability in the 08A/m magnetic field
intensity and the maximum magnetic permeability
are not less than the
coercive force (under the saturation magnetic
induction intensity) H.
is not greater than the
saturation magnetic induction!
Strength B
Product Type
Cold Rolled Strip
Hot Rolled (Forged) Flat
Hot Rolled (Forged) Bar
Cold Rolled Strip
Thickness or Diameter
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.35~1.00
GBn 198--88
Continued Table 4
The magnetic permeability in the maximum magnetic permeability
in the magnetic field strength of 0.8A/m is not less than
Note: ①Saturation magnetic induction intensity B, measured under the external magnetic field strength of 800A/m. μm
Coercive force (under saturation magnetic induction intensity) H.
Not greater than
Saturation magnetic induction intensity B
②According to the agreement between the supply and demand parties, when one of the 1J79, 1J80, 1J85 alloys of grades II and III meets the standard, delivery is allowed, but other parameters cannot be worse than grade 1.
Table 5 AC magnetic properties of high initial permeability soft magnetic alloy
Product type
Cold rolled strip
Cold rolled strip
When the peak value of the magnetic field intensity is 0.1A/m,
The elastic permeability at a certain frequency, μ400Hz
is not less than
Alloy grade
1367 :
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.20
0.02~9.09||tt| |0.02~0.04
0:05~0.09
0.02~0.04
0.02~0.04
0.05~0.10
0.005~ 0.01
0.02~0.04
0.05~0.09
0.10~0.50
0.02~0.04
0.05~0.09||t t||0.10~0.19
0.20~0.50
0.005~0.01
0.02~0.04
0.05~0.09
GBn 198--88
Table 6 Magnetic properties of magnetic alloys
In 0.8A/m
magnetic field strength
The magnetic permeability
Maximum magnetic permeability
is not less than
coercive force
! (Under saturation
square coefficient
magnetic induction intensity
degree) H.
Pa/aoo
Pa/3000
not more than
35～65
35～65
saturation magnetic induction
Note: ① Saturation magnetic induction intensity B is measured under an external magnetic field of 2000～2400A/m for 1J34, 1J51, 1J52 and 1J403 alloys, and under an external magnetic field of 800A/m for
1J65, 1J67 and 1J83 alloys. ② Iron loss P1/00 and Pi/3000 respectively represent the iron loss when the frequency is 400Hz and 3000Hz and the peak value of magnetic induction intensity is 1T. ③ The Bm in the square coefficient B./Bm is the magnetic induction intensity when the external magnetic field intensity is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of alloys in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloys Curie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10) Cold hardened
Tensile strength
Cold hardened
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature ranges Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloyThe magnetic permeability in the 08A/m magnetic field
intensity and the maximum magnetic permeability
are not less than the
coercive force (under the saturation magnetic
induction intensity) H.
is not greater than the
saturation magnetic induction!
Strength B
Product Type
Cold Rolled Strip
Hot Rolled (Forged) Flat
Hot Rolled (Forged) Bar
Cold Rolled Strip
Thickness or Diameter
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.19
0.20~0.34
0.35~1.00
GBn 198--88
Continued Table 4
The magnetic permeability in the maximum magnetic permeability
in the magnetic field strength of 0.8A/m is not less than
Note: ①Saturation magnetic induction intensity B, measured under the external magnetic field strength of 800A/m. μm
Coercive force (under saturation magnetic induction intensity) H.
Not greater than
Saturation magnetic induction intensity B
②According to the agreement between the supply and demand parties, when one of the 1J79, 1J80, 1J85 alloys of grades II and III meets the standard, delivery is allowed, but other parameters cannot be worse than grade 1.
Table 5 AC magnetic properties of high initial permeability soft magnetic alloy
Product type
Cold rolled strip
Cold rolled strip
When the peak value of the magnetic field intensity is 0.1A/m,
The elastic permeability at a certain frequency, μ400Hz
is not less than
Alloy grade
1367 :
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.20
0.02~9.09||tt| |0.02~0.04
0:05~0.09
0.02~0.04
0.02~0.04
0.05~0.10
0.005~ 0.01
0.02~0.04
0.05~0.09
0.10~0.50
0.02~0.04
0.05~0.09||t t||0.10~0.19
0.20~0.50
0.005~0.01
0.02~0.04
0.05~0.09
GBn 198--88
Table 6 Magnetic properties of magnetic alloys
In 0.8A/m
magnetic field strength
The magnetic permeability
Maximum magnetic permeability
is not less than
coercive force
! (Under saturation
square coefficient
magnetic induction intensity
degree) H.
Pa/aoo
Pa/3000
not more than
35～65
35～65
saturation magnetic induction
Note: ① Saturation magnetic induction intensity B is measured under an external magnetic field of 2000～2400A/m for 1J34, 1J51, 1J52 and 1J403 alloys, and under an external magnetic field of 800A/m for
1J65, 1J67 and 1J83 alloys. ② Iron loss P1/00 and Pi/3000 respectively represent the iron loss when the frequency is 400Hz and 3000Hz and the peak value of magnetic induction intensity is 1T. ③ The Bm in the square coefficient B./Bm is the magnetic induction intensity when the external magnetic field intensity is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of alloys in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloys Curie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10) Cold hardened
Tensile strength
Cold hardened
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature ranges Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloy08 or μm meets the standard, delivery is allowed, but other parameters cannot be worse than 1 grade.
Table 5 AC magnetic properties of high initial permeability soft magnetic alloy
Product type
Cold rolled strip
Cold rolled strip
When the peak value of the magnetic field intensity is 0.1A/m,
The elastic permeability at a frequency of 400Hz
is not less than
Alloy grade
1367 :
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.20
0.02~9.09||tt| |0.02~0.04
0:05~0.09
0.02~0.04
0.02~0.04
0.05~0.10
0.005~ 0.01
0.02~0.04
0.05~0.09
0.10~0.50
0.02~0.04
0.05~0.09||t t||0.10~0.19
0.20~0.50
0.005~0.01
0.02~0.04
0.05~0.09
GBn 198--88
Table 6 Magnetic properties of magnetic alloys
In 0.8A/m
magnetic field strength
The magnetic permeability
Maximum magnetic permeability
is not less than
coercive force
! (Under saturation
square coefficient
magnetic induction intensity
degree) H.
Pa/aoo
Pa/3000
not more than
35～65
35～65
saturation magnetic induction
Note: ① Saturation magnetic induction intensity B is measured under an external magnetic field of 2000～2400A/m for 1J34, 1J51, 1J52 and 1J403 alloys, and under an external magnetic field of 800A/m for
1J65, 1J67 and 1J83 alloys. ② Iron loss P1/00 and Pi/3000 respectively represent the iron loss when the frequency is 400Hz and 3000Hz and the peak value of magnetic induction intensity is 1T. ③ The Bm in the square coefficient B./Bm is the magnetic induction intensity when the external magnetic field intensity is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of alloys in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloys Curie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10) Cold hardened
Tensile strength
Cold hardened
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature ranges Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloy08 or μm meets the standard, delivery is allowed, but other parameters cannot be worse than 1 grade.
Table 5 AC magnetic properties of high initial permeability soft magnetic alloy
Product type
Cold rolled strip
Cold rolled strip
When the peak value of the magnetic field intensity is 0.1A/m,
The elastic permeability at a frequency of 400Hz
is not less than
Alloy grade
1367 :
0.005~0.01
0.02~0.04
0.05~0.09
0.10~0.20
0.02~9.09||tt| |0.02~0.04
0:05~0.09
0.02~0.04
0.02~0.04
0.05~0.10
0.005~ 0.01
0.02~0.04
0.05~0.09
0.10~0.50
0.02~0.04
0.05~0.09||t t||0.10~0.19
0.20~0.50
0.005~0.01
0.02~0.04
0.05~0.09
GBn 198--88
Table 6 Magnetic properties of magnetic alloys
In the magnetic field strength of 0.8A/m
, the magnetic permeability
and the maximum magnetic permeability
are not less than
coercive force
! (Under the saturation
square coefficient
magnetic induction intensity
degree) H.
Pa/aoo
Pa/3000
not more than
35～65
35～65
saturation magnetic induction
Note: ① Saturation magnetic induction intensity B is measured under an external magnetic field of 2000～2400A/m for 1J34, 1J51, 1J52 and 1J403 alloys, and under an external magnetic field of 800A/m for
1J65, 1J67 and 1J83 alloys. ② Iron loss P1/00 and Pi/3000 respectively represent the iron loss when the frequency is 400Hz and 3000Hz and the peak value of magnetic induction intensity is 1T. ③ The Bm in the square coefficient B./Bm is the magnetic induction intensity when the external magnetic field intensity is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of alloys in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloys Curie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10) Cold hardened
Tensile strength
Cold hardened
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature ranges Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2bzxz.net
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloy/Bm is the magnetic induction intensity when the external magnetic field strength is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference parts)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of the alloy in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloysCurie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10)Cold hardened state
Tensile strength
Cold hardened state
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature range Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloy/Bm is the magnetic induction intensity when the external magnetic field strength is 80A/m. The iron loss of 1J403 alloy grade 1 products should be measured at ~40℃, +20℃ and +100℃. 126
GBn 198--88
Appendix A
Basic physical parameters and typical mechanical properties of alloys (reference parts)
Basic physical parameters and typical mechanical properties of alloys are shown in Table A1. 2. The average linear expansion coefficient of the alloy in different temperature ranges is shown in Table A2. A2
Alloy brand
Resistivity
Alloy brand
100℃
Basic physical parameters and typical mechanical properties of alloysCurie point
Brinell hardness
Saturation magnetostrictive
Stretching coefficient
×10)Cold hardened state
Tensile strength
Cold hardened state
Average linear expansion coefficient of alloys
Linear expansion coefficient in the following temperature range Coefficient of expansion, 20~
200℃
300℃
400℃
500℃
Yield strength
.N/mm2
Cold hardened state
×10-6/℃
600℃
700℃
Elongation
Cold hardened state
800℃
900℃
GBn 198--88
Appendix B
Magnetic properties of alloys when magnetized in different states (reference)
High magnetic respect and high saturation magnetic induction intensity alloys that meet the requirements of Class B magnetic properties under a DC magnetic field, their typical AC magnetic characteristics curves are shown in Figures B1 to B7. In the figure: μpo.
I is the peak magnetic permeability when the peak magnetic field strength is 0.4A/m. Pg., P1.- are the specific iron losses when the magnetic induction strength is 0.5T and 1.0T respectively. B, H are the peak values of the magnetic induction strength and magnetic field strength when magnetized in an AC magnetic field. 1800
8/）0
406089100200
4006001000200040008000
Frequency (Hz)
Figure B11Typical curve of iron loss and frequency of J50 alloy (u/H)Micro
GBn 198--88
4006001000
Frequency (Hz)
40008000
600010000
1J50 alloy peak permeability and frequency curve1.62.t4
Bian Tang strength H (A/m)
160240400300
0.02mm thick 1J50 alloy magnetization curve
GBn 198—88
Magnetic field strength H (A/m)
160240400800
Figure B4Magnetization curve of 0.05mm thick 1J50 alloy0.8
162440
Magnetic field strength H (A/m)
160240400
：Magnetization curve of 0.1mm thick 1J50 alloy
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