GOST 10160-75

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  ГОСТ 10160-75

GOST 10160−75 Alloys are magnetically soft. Technical specifications (Changes No. 1−4, adjusted)

GOST 10160−75

Group B30

INTERSTATE STANDARD

ALLOY MAGNETICALLY SOFT

Specifications

Off volume control dimension soft precision alloys.
Specifications

ISS 77.080.20
OKP 09 6600, 09 8900, 09 9000, 12 6600, 12 6700

Date of introduction 1976−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of metallurgy of the USSR

2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from 09.04.75 N 894

3. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

The designation of the reference document referenced	The item number, app
GOST 8.377−80	5.7, 5.9
GOST 9.014−78	6.4
GOST 166−89	5.4
GOST 427−75	5.4
GOST 1133−71	2.12
GOST 1341−97	6.3
GOST 1760−86	6.3
GOST 2590−88	2.12
GOST 2771−81	2.2, 2.13
GOST 2991−85	6.3, 6.5
GOST 3560−73	6.3, 6.5
GOST 4381−87	5.4
GOST 4526−75	Annex 1
GOST 4986−79	2.3
GOST 5949−75	3.5
GOST 6009−74	6.3, 6.5
GOST 6507−90	5.4
GOST 7470−92	5.3
GOST 7502−98	5.4
GOST 7565−81	5.1
GOST 7566−94	4.14, 6.1
GOST 8828−89	6.3, 6.5
GOST 9569−79	6.3, 6.5
GOST 10354−82	6.3
GOST 10396−84	6.3, 6.5
GOST 10877−76	6.4
GOST 10994−74	3.1
GOST 12119.0−98 — GOST 12119.8−98	5.7
GOST 12344−2003	5.2
GOST 12345−2001	5.2
GOST 12346−78	5.2
GOST 12347−77	5.2
GOST 12348−78	5.2
GOST 12349−83	5.2
GOST 12350−78	5.2
GOST 12351−2003	5.2
GOST 12352−81	5.2
GOST 12353−78	5.2
GOST 12354−81	5.2
GOST 12355−78	5.2
GOST 12356−81	5.2
GOST 12357−84	5.2
GOST 12358−2002	5.2
GOST 12359−99	5.2
GOST 12360−82	5.2
GOST 12361−2002	5.2
GOST 12362−79	5.2
GOST 12363−79	5.2
GOST 12364−84	5.2
GOST 12365−84	5.2
GOST 14192−96	6.12
GOST 15150−69	6.7
GOST 16272−79	6.3
GOST 17811−78	6.5
GOST 19903−74	6.4
GOST 20799−88	6.3, 6.4
GOST 21616−91	5.9
GOST 21650−76	6.13
GOST 24597−81	6.13
GOST 28473−90	5.2
GOST 28836−90	5.9

4. Limitation of actions taken by Protocol No. 5−94 of the Interstate Council for standardization, Metrology and certification (ICS 11−12−94)

5. EDITION with Amendments No. 1, 2, 3, 4, approved in July 1980, August 1983, December 1985, may 1990 (IUS 10−80, 12−83, 4−86, 8−90)


AMENDED, published in the IUS N 7, 2012

An amendment made by the manufacturer of the database

This standard applies to soft magnetic-alloy and alloy iron-double, zhelezomargantsevye and Fe-and triple gelezinkelieciu alloys with high magnetic permeability and low coercive force.

1. GRADES AND CLASSIFICATION

1.1. Depending on the basic properties of alloys manufactures of the following groups and grades specified in table.1.

Table 1

Group	Mark	Basic properties
1	79NM, 80NKHS, 81HMA, 83NF	Highest magnetic permeability in weak fields
2	50NKHS	High magnetic permeability and high specific electrical resistivity
3	45N, 50N	The increased magnetic permeability and enhanced induction of technical saturation
4	50NP, 68NMP, 34NKMP, 35NKKHSP, 40NKMP, 79NMP, 77NMDP	Rectangular hysteresis loop. Alloys have anisotropic magnetic properties
Five	27KKH, 49KF, 49K2 °F, 49K2FA	High magnetic induction of technical saturation
6	47NK, 64N, 40NKM	Low residual magnetic induction and the constancy of magnetic permeability. Alloys have anisotropic magnetic properties
7	79N3M, 68NM	High magnetic permeability, for a unipolar magnetization. Alloys have anisotropic magnetic properties
8	16X, 36НКМ	High corrosion resistance

Notes:

1. The grades 35NKKHSP, 40NKMP, 40NKM, 64N, 79N3M not allowed to use in the newly created and upgraded technology with 01.01.91. Alloy brand 36KNM not recommended for use in new development with 01.01.91.

2. The grades 79NMP and 77NMDP produce a thickness of 0.003 mm (3 microns) or less.

3. The letter P in the designation of the brand refers to alloys with rectangular hysteresis loop.


(Changed edition, Rev. N 3, 4).

1.2 a. Products are divided as follows:

mind:

cold-rolled steel strip — tape;

sheet cold-rolled sheet;

sheet, HR sheet, G. K.;

rod hot — rod, G. K.;

rod forged rod.;

cold drawn wire — wire;

on the accuracy of rolling tape:

normal — N;

high.

on the edges of the belt:

cut — O;

unedged Board;

on the magnetic properties of classes:

with a normal magnetic — I;

with high magnetic properties — II;

with high magnetic properties — III.

(Added, Rev. N 4).

1.2. Properties of alloys are mainly provided: class I — open method of smelting, for the class II — smelting in vacuum furnaces or the method of selection and for class III — special melting techniques (vacuum-induction, vacuum-arc, electron beam, plasma, or combinations thereof, is melted on a fresh charge materials).

Products of class III are made by agreement between manufacturer and consumer.

(Changed edition, Rev. N 3, 4).

2. ASSORTMENT

2.1. The alloys are made in the form of cold rolled strips, cold rolled and hot rolled sheets, hot rolled and forged bars and wire. The range for each alloy is given in table.6−16.

2.2. The dimensions of cold strip and limit deviations on thickness shall be as specified in table.2.

Table 2

Thickness, mm	Maximum deviation in thickness, microns with precision rolling		Width, mm	Tape length, m, not less
	normal	high		in rolls	in segments
0,0015	±0,15	-	20, 30, 40	10	-
0,002	±0,20	-	20, 30, 40	10	-
0,003	±0,30	-	20, 30, 40	10	-
0,005	±0,50	-	30, 40, 70 and 100	10	-
0,01	±1,0	-	70−100	20	-
0,02	Is 3.0	-	5−100	30	-
0,05	-8,0	-	5−250	30	-
0,08	-10,0	-	5−250	20	-
0,10	-20,0	-10,0	5−250	20	-
0,15	-20,0	-10,0	10−250	20	-
0,20	-30,0	-15,0	10−250	20	2
0,25	-30,0	-15,0	10−250	20	2
0,27	-40,0	-20,0	10−250	10	2
0,35	-40,0	-20,0	10−250	10	2
0,50	-50,0	-25,0	10−250	10	2
0,70	-60,0	-	20−25	10	1
0,80	Seal at -70.0	-	20−250	10	1
0,90	-90,0	-	100−250	10	1
1,0	-90,0	-	100−250	10	1
1,3	-110,0	-	100−250	5	1
1,5	-110,0	-	100−250	5	1
2,0	-130,0	-	100−250	5	1
2,5	-160,0	-	250	5	1

Notes:

1. Tape high precision rolling produce on demand of the consumer. Belt width high precision rolling up to 480 mm inclusive.

2. Strip width 5−69 mm are made with a gradation of 1 mm; a width of 70−150 mm with gradation of 10 mm; a width of 150−480 mm with gradation of 50 mm.

3. At the request of the consumer tape is made of intermediate thickness in accordance with GOST 4986 extreme deviations on the nearest higher thickness.

2.3. By agreement between the consumer and the manufacturer of the tape produce:

thickness greater than 2.5 mm;

with a more stringent limit deviations on thickness;

intermediate, larger and smaller width according to GOST 4986;

greater length (in the manufacture of tape rolls).

2.2, 2.3. (Changed edition, Rev. N 3, 4).

2.4. Tape is manufactured in rolls and cuts in the weld rolls.

(Changed edition, Rev. N 4).

2.5. Ribbon are made with cut and uncut edge. In the absence of instructions in the order the tapes are made with mill edge. Tape with a thickness of 2.5 mm and less than 0.02 mm are made with mill edge.

2.6. Maximum deviations in width of the edging strips shall be as specified in table.3, edging tape — in table.4.

Table 3

mm

The thickness of the strip	The ultimate deviation in the width of the tape with a width of
	up to 100	from 110 to 140	St. 150
	No more
Less than 0.05	+4	-	-
From 0.05 to 2.5	+5	+7	+10

Table 4

mm

The thickness of the strip	The ultimate deviation in the width of the tape with a width of
	up to 100	over 100
	No more
From 0.05 to 0.50	-0,3	-0,5
«0,55» 1,0	-0,4	-0,6
SV. 1,0	-0,6	-0,8

2.7. Dimensions and limit deviations of cold rolled sheets should correspond to GOST 19904. It is possible to produce sheets of a width less than 500 mm.

2.8. Sizes of hot-rolled sheets and tolerances for them shall be as specified in table.5.

Table 5

mm

Thickness	Limit deviation on thickness	Width	Length, not less than
From 3 to 5	±0,2		800
«8	±0,4	Multiple of 100	500
«8» 14	±0,5	not more than 600
«14» 22	±0,7		300

2.9. By agreement between the consumer and the manufacturer sheets are produced up to a width of 800 mm and a thickness of 32 mm.

2.10. Hot rolled sheets are produced without editing and trimming.

2.11. Maximum deviations in width of hot-rolled sheets should correspond to GOST 19903.

(Changed edition, Rev. N 4).

2.12. Dimensions and limit deviations of forged and hot-rolled bars shall meet the requirements of GOST and GOST 2590 1133.

Depending on the diameter of the rods are made long, at least:

with a diameter of 8 to 13 mm — 1000 mm;

«" over 13 up to 80 mm — 500 mm;

«"" 80 «120 mm — 250 mm.

By agreement between the consumer and the manufacturer produce rods of shorter length.

Note. For the alloy 49KF the permissible deviations in diameter hot-rolled and forged bars must be:

mm — at diameter 10 to 12 mm

mm «"" 13 to 25 mm

±1.5 mm «"" 26 to 30 mm

±2.0 mm «"" 31 to 38 mm

±2.0 mm «"" 40 to 50 mm

±3.0 mm «"" 55 to 80 mm

The curvature of the rods should be not more than 50 mm to 1 m.

2.13. Wire produced with a diameter of 0.05−5.0 mm. wire Diameters should correspond to GOST 2771 for some 20 extreme deviations:

	for diameters from 0.05 to 0.08 mm	7;
	«" from 0.1 to 0.9 mm	9; 10;
	«" from 1.0 to 5.0 mm	10; 11.

(Changed edition, Rev. N 2).

2.14. By agreement between manufacturer and consumer tape is manufactured with a normalized deviation from flatness.

(Added, Rev. N 2).

Examples of symbols

Cold-rolled strip with neobreznye edges, thickness 0.10 mm, width 150 mm, class I, grade 80NKHS normal accuracy of rolling:

Tape 0,10х150−1-80NKHS-N-GOST 10160−75

Same with obraznymi edges, thickness 0.20 mm, width 400 mm, of alloy 79NM brand, high precision rolling, with a maximum permeability for the II class and the rest of the parameters are not worse than class I:

Tape On-0,20х400-II — max. permeability -79NM-IN-the GOST 10160−75

Cold-rolled sheet with neobreznye edges, thickness 1.0 mm, width 300 mm, length 500 mm, class I, grade alloy 79NM:

Sheet 1,0х300−500-I-79HM-GOST 10160−75

Same with obraznymi edges, thickness 0.5 mm, width 300 mm, length 600 mm, class I, grade 79HM:

Sheet O-0,5х300−600-I-79HM-GOST 10160−75

Hot rolled sheet mill edge thickness 5.0 mm, width 400 mm, length 500 mm, class I, grade 45N:

Leaf, G. K. 5,0х400−500-I-45N-GOST 10160−75

Same with cut edges, thickness 3 mm, width 300 mm, length 800 mm, grade I, from grade 80NKHS:

Sheet G. K. O-3х300−800-I-80NKHS-GOST 10160−75

Hot-rolled rod with diameter 10 mm, length 1500 mm, class I, grade 50N:

Rod G. K. 10х1500-I-50H-GOST 10160−75

Forged bars diameter 20 mm, length 500 mm, class I, grade 36KNM:

Rod K. 20х500-I-36KHM-GOST 10160−75

Cold drawn wire diameter of 0.05 mm — 10, class II, grade 81NMA:

Wire 0,05-II-10−81NMA-GOST 10160−75

Tape with obraznymi edges with a thickness of 0.35 mm, a width of 200 mm, class II, grade 50N, normal accuracy of rolling, vacuum-induction melting:

Tape On-0,35х200-II-50N-N-VI-GOST 10160−75

(Changed edition, Rev. N 3).

3. TECHNICAL REQUIREMENTS

3.1. The chemical composition of the alloys shall conform to GOST 10994.

3.2. Sheets, strip, rods, and wire produced without heat treatment.

3.3. On the surface of cold rolled strips, sheets and wire are allowed separate local defects in the form of small prisoner, nicks, fingerprints, rabini, scratches and traces of Stripping sandpaper, if the depth or the height of their occurrence does not exceed extreme deviations in thickness.

On the ribbon thickness 0.01 mm (10 µm) and permitted individual plots with regularly spaced along the length of the punctures with the intervals of at most 5 mm.

The coil is allowed to delete individual defects (slivers, flaws, inclusions, sink) if they are located on the site of a width not exceeding 5 mm and not more than 10 m in length and defective welds.

On the edges of the cut strips and sheets are not allowed burrs in excess of the maximum deviations in thickness and other defects of sizes more than half of the limit deviations on width.

On the edges of the edging strips are not allowed flaw, bringing the tape beyond the minimum width.

Note. Allowed refinement of surface characteristics of the tape samples, agreed in the prescribed manner, indicating the type and number of allowable defects per unit area.


(Changed edition, Rev. N 3, 4).

3.4. Hot rolled sheets are produced without etching. On the surface of the sheet is not allowed defects in the form of captured, flaws and cracks. Allowed without Stripping defects in the form of grooves, scratches, minor captivity, nicks, and fingerprints to a depth of not more than the amount of limit deviations for thickness. Individual defects should be removed by Stripping. Cleanup shouldn’t print the sheets for the limit deviation on thickness.

On the edges of the edging leaves are allowed vices, not bringing the leaves for the limit deviations on width.

3.5. The surface of hot-rolled and forged bars shall conform to the requirements of GOST 5949 depending on the purpose, specified in the order.

(Changed edition, Rev. N 4).

3.6. The magnetic properties of the alloys are defined on the control samples after heat treatment, must conform to the table.6−16.

Table 6

Magnetic properties of alloys with high magnetic permeability in weak fields

Brand alloys	View products	Class	Thickness or diameter, mm	The initial permeabilit- the cost		The maximum permeability		The coercive force of		Induction of technical saturation
				mH/m	GS/E	mH/m	GS/E	Vehicles	E	(10GS)
				Not less than				No more		Not less than
79NM	The cold strip	I	0,005	8,8	7000	38	30000	8,0	0,10	0,75
			0,01	17,5	14000	75	60000	5,6	0,07
			0,02	20	16000	88	70000	4,0	0,05
			0,05 0,08	20	16000	110	90000	3,2	0,04
			0,10 0,15	25	20000	150	120000	2,4	0,03
	Cold-rolled sheets and strips		0,20 0,25	28	22000	160	130000	1,6	0,02
			0,35 0,50 0,8 1,0	31	25000	190	150000	1,6	0,02
			1,5 2,0 2,5	28	22000	160	130000	1,6	0,02
	Hard drawn wire		0,05 0,10	6,3	5000	50	40000	6,4	0,08
	Hot-rolled sheets		3−22	25	20000	100	80000	3,2	0,04
	Bars		8−100	25	20000	100	80000	3,2	0,04
79NM	The cold strip	II	0,005	12,5	10000	44	35000	6,4	0,08	0,73
			0,01	20	16000	110	90000	3,2	0,04
			0,02	25	20000	125	100000	2,4	0,03
			0,05 0,08	25	20000	150	120000	1,6	0,02
			0,10 0,15	28	22000	190	150000	1,2	0,015
			0,20 0,25	31	25000	230	180000	1,2	0,015
			0,35 0,5 0,8 1,0	38	30000	280	220000	1,0	0,012
			1,5; 2,0	31	25000	230	180000	1,2	0,015
79NM	The cold strip	III	0,01	25	20000	150	120000	2,4	0,03	0,73
			0,02	31	25000	190	150000	1,6	0,02
			0,05	38	30000	250	200000	1,2	0,015
			0,10	38	30000	250	200000	1,2	0,015
			0,20 0,25	38	30000	280	220000	1,0	0,012
			0,35	44	35000	310	250000	1,0	0,012
80NKHS	The cold strip	I	0,005	10	8000	38	30000	8,0	0,10	0,63
			0,01	17,5	14000	65	50000	5,6	0,07
			0,02	23	18000	88	70000	4,0	0,05
			0,05 0,08	25	20000	110	90000	3,2	0,04
			0,10 0,15	28	22000	150	120000	2,4	0,03
			0,20 0,25	35	28000	160	130000	1,6	0,02
			0,35 0,50	44	35000	190	150000	1,2	0,015
			0,8 1,0	38	30000	210	170000	1,0	0,012
			1,5 2,0 2,5	31	25000	190	150000	1,2	0,015
	Hot-rolled sheets		3−22	25	20000	88	70000	3,2	0,04
	Bars		8−100	25	20000	88	70000	3,2	0,04
80NKHS	The cold strip	II	0,02	28	22000	125	100000	3,2	0,04
			0,05 0,08	38	30000	190	150000	1,6	0,02
			0,10 0,15	40	32000	200	160000	1,2	0,015
			0,2 0,25	44	35000	200	160000	1,2	0,015
			0,35 0,50	44	35000	250	200000	1,0	0,012
80NKHS		III	0,01	31	25000	110	90000	3,2	0,04
			0,02	38	30000	150	120000	1,6	0,02
			0,05 0,08	50	40000	250	200000	1,0	0,012
			0,10	56	45000	250	200000	1,0	0,012
			0,35 0,50	63	50000	310	250000	0,8	0,01

Note. Wire of alloy 79NM with a diameter of 0.2−5.0 mm comes in chemical composition.

Table 7

The magnetic properties of the alloy grade 81NMA when the magnetization in the fixed and variable fields

Product	Class	Thickness or diameter, mm	Magnetic permeability in a field of 0.08 A/m (0,001 e)		The maximum magnetic permeability		Coercitive- Naya force		Induction of technical saturation	Magnetic permeability in the field 0.1 A/m (0,00125 e) at frequencies
				1 kHz		10 kHz		100 kHz			1 MHz
			mH/m	GS/E	mH/m	GS/E	Vehicles	E	T (10GS)	mH/m	GS/E	mH/m	GS/E	mH/m	GS/E		mH/m	GS/E
			Not less than				No more		He less
The cold strip	I	0,02 0,05 0,1 0,2	63	50000	-	-	-	-	0,50	-	-	-	-	-		-	-	-
		0,35 0,5	88	70000	310	250000	1,2	0,015	0,50	-	-	-	-	-		-	-	-
		0,0* 1,5 2,0	63	50000	250	200000	1,2	0,015	0,50	-	-	-	-	-		-	-	-
Bars		10−50	50	40000	190	150000	1,6	0,020	0,50	-	-	-	-	-		-	-	-
The cold strip	II	0,02	63	50000	190	150000	2,0	0,025	0,50	-	-	56	45000	23		18000	3,8	3000
		0,05	63	50000	250	200000	0,8	0,01		-	-	23	18000	5		4000	1	800
		0,1								44	35000	11	9000	-		-	-	-
		0,2	88	70000	310	250000	0,64	0,008		19	15000	5	4000	-		-	-	-
Hard drawn wire		0,05	12,5	10000	63	50000	4,8	0,06	0,50	-	-	-	-	-		-	-	-
The cold strip	Ill	0,02	88	70000	210	170000	1,6	0,020	0,50	88	70000	75	60000	25		20000	4,4	3500
		0,05	125	10000	380	300000	0,56	0,007		100	80000	28	22000	6		4500	1,2	1000
		0,1	150	120000	440	350000	0,4	0,005		56	45000	14	11000	-		-	-	-
		0,2								25	20000	7	5500
Hard drawn wire		0,05	25	20000	94	75000	3,2	0,04	0,50	-	-	-	-	-		-	-	-

________________
* Consistent with the original. — Note the CODE.

Table 8

The magnetic properties of the alloy grade 83NF when the magnetization in the fixed and variable fields

Product	Class	Thickness, mm	Magnetic permeability in the field 0.08 A/m (0,001 e) for the frequency						Temperature coefficient of permeability % °C temperature range, °C			Induction technical sky saturation T (10GS)	Coercitive- Naya force
			0 Hz		1 kHz		15 kHz
			mH/m	GS/E	mH/m	GS/E	mH/m	GS/E	-20 to +80	from -20 to +20	-40 to +20		Vehicles	E
			Not less than						No more			Not less than	No more
Holodnokatny- nye tapes	I	0,02	63	50000	-	-	44	35000	-	-	-	0,60	2,0	0,024
		0,05	75	60000	-	-	-	-	-	-			1,6	0,020
		0,10	88	70000	56	45000	-	-	-	-	-		1,2	0,015
	II	0,02	44	35000	-	-	31	25000	0,3	0,5	0,7		-	-
		0,05	50	40000	-	-	-	-	0,5	0,5	0,8		-	-
		0,10	63	50000	38	30000	-	-	0,5	0,5	0,8		-	-
	III	0,02	63	50000	-	-	44	35000	0,5	-	0,8		-	-
		0,05	75	60000	-	-	-	-	0,5	-	0,8		-	-
		0,10	88	70000	56	45000	-	-	0,5	-	0,8		-	-

Notes to the table.6−8:

1. (Deleted, Rev. N 2).

2. (Deleted, Rev. N 3).

3. At the customer’s request is possible to supply the alloys 79NM, 80NKHS and 81NMA classes II and III with a normalization of one of the parameters — initial permeability permeability in the field of strength 0.08 A/m or maximum permeability; however, other parameters should be not worse than specified for class I. Standard specify in the order.

4. The grades 81NMA and 83NF manufactured by vacuum melting.

5. In coordination with the consumer the number of indicators of the magnetic properties can be reduced.

Table 9

The magnetic properties of the alloy grade 50NKHS high magnetic permeability
and with high specific electric resistance

Product	Class	Thickness, mm	Initial magnetic permeability		The maximum permeability		Coercitive- Naya force		Induction of technical saturation
			mH/m	GS/E	mH/m	GS/E	Vehicles	E	(10GS)
			Not less than				No more		Not less than
The cold strip	I	0,005	1,25	1000	10	8000	56	0,70	Of 1.00
		0,01	1,6	1300	12,5	10000	40	0,50
		0,02	1,9	1500	19	15000	20	0,25
		0,05 0,08	2,5	2000	25	20000	16	0,20
		0,1 0,15	3,1	2500	31	25000	13	0,16
		0,2 0,25	3,8	3000	35	28000	10	0,12
		0,35 0,5	4,0	3200	38	30000	8	0,10
	II	0,8 1,0	3,8	3000	25	20000	10	0,12
		0,02 0,05	3,8	3000	31	25000	12	0,15
		0,1 0,2 0,25	3,9	3100	35	28000	10	0,12
		0,35 0,5	4,4	3500	44	35000	8	0,10

Table 10

Magnetic properties of alloys of high magnetic permeability
and increased technical saturation induction

Mark alloy	Product	Class	Thickness or diameter, mm	Initial magnetic permeability		The maximum magnetic permeability		The coercive force of		The technical saturation induction (10GS)
				mH/m	GS/E	mH/m	GS/E	Vehicles	E
				Not less than				No more		Not less than
50N	The cold strip	I	0,05 0,08	2,5	2000	25	20000	20	0,25	1,50
			0,10 0,15	2,9	2300	31	25000	16	0,20
			0,20 0,25 0,27	3,3	2600	38	30000	12	0,15
			0,35 0,50	3,8	3000	44	35000	10	0,12
			0,80 1,0	3,8	3000	38	30000	12	0,15
			1,5 2,0 2,5	3,5	2800	31	25000	13	0,16
	Hot-rolled sheets		3−22	3,1	2500	25	20000	24	0,30
	Bars		8−100	3,1	2500	25	20000	24	0,30
50N	The cold strip	II	0,10 0,15	3,8	3000	38	30000	14	0,18
			0,20 0,25	4,4	3500	44	35000	12	0,15
			0,35 0,50	5,0	4000	56	45000	10	0,12
			0,80 1,0	5,0	4000	50	40000	10	0,12
			1,5 2,0	3,8	3000	44	35000	12	0,15
50H	The cold strip	III	0,05 0,10 0,20	12,5*	10000*	75	60000	4,0	0,05	1.52 m
45N	The cold strip	I	0,10 0,15	2,5	2000	25	20000	24	0,30	1,50
			0,20 0,25	3,1	2500	29	23000	20	0,25
			0,35 0,50 0,8 1,0 1,5 2,0 2,5	3,5	2800	31	25000	16	0,20
	Hot-rolled sheets		3−22	2,5	2000	23	18000	24	0,30
	Bars		8−100	2,5	2000	23	18000	24	0,30

________________
* The value of magnetic permeability for cold-rolled strips of alloy grade 50N given for the field strength of 0.4 A/m (0,005 e).

(Changed edition, Rev. N 4).

Table 11

Magnetic properties of alloys with rectangular hysteresis loop

Mark alloy	Product	Class	Tol- soup- on mm	The maximum magnetic permeability		The coercive force of			Induction of technical saturation, (10GS)	The Squareness ratio in a field of 800 A/m (10 OE)
				mH/m	GS/E	Vehicles	E
				Not less than		No more			Not less than
50NP	The cold strip	I	0,005	19	15000	40		0,50	1,50	0,80
			0,01	25	20000	32		0,40		0,83
			0,02	50	40000	20		0,25		0,85
			0,05 0,10	50	40000	18		0,23		0,85
50NP		II	0,01	44	35000	20		0,25		0,87
			0,02	75	60000	15		0,18		0,92
			0,05 0,10	75	60000	15		0,18		0,90
50NP		III	0,01	75	60000	15		0,18	1.52 m	0,94
			0,02	95	75000	13		0,16		0,94
			0,05	100	80000	11		0,14		0,94
34NKMP	The cold strip	I	0,005	19	15000	80		1,0	1,50	0,90
			0,01	44	35000	24		0,30		0,92
			0,02	50	40000	16		0,20		0,90
			0,05	75	60000	12		0,15		0,87
			0,10	125	100000	8		0,10		0,85
			0,20 0,25 0,35 0,50	150	120000	6,4		0,08		0,85
		II	0,01	50	40000	16		0,20		0,92
			0,02	80	65000	11		0,14		0,94
			0,05	94	75000	10		0,12		0,92
			0,10	160	25000	6,4		0,08		0,90
			0,20 0,25 0,35 0,50	230	180000	6,4		0,08		0,90
35NKKHSP	The cold strip	I	0,005	19	15000	80		1,0	1,30	0,90
			0,01	38	30000	24		0,30		0,85
			0,02	50	40000	16		0,20		0,85
			0,05	75	60000	12		0,15		0,85
			0,10	125	100000	8		0,10		0,80
			0,20 0,25 0,35 0,50	150	120000	6,4		0,08		0,80
		II	0,01	63	50000	16		0,20		0,92
			0,02	100	80000	12		0,15		0,92
			0,05	250	200000	4,8		0,06		0,92
			0,10 0,20 0,25 0,35 0,50	380	300000	4,0		0,05		0,92
40NKMP	The cold strip	I	0,01	125	100000	6,4		0,08	1,35	0,93
			0,02	250	200000	4,0		0,05		0,93
			0,05	380	300000	3,2		0,04		0,92
			0,10	500	400000	2,4		0,03		0,93
		II	0,01	250	200000	4,8		0,06		0,94
			0,02	500	400000	2,4		0,03		0,94
			0,05	625	500000	1,6		0,02		0,94
			0,10	750	600000	1,6		0,02		0,94
68NMP	The cold strip	I	0,02	125	100000	8,0		0,10	1,15	0,90
			0,05	250	200000	5,6		0,07		0,90
		II	0,10 0,20	280	220000	4,0		0,05		0,90
			0,02	250	200000	4,0		0,05		0,90
			0,05	500	400000	3,2		0,04		0,92
			0,10	500	400000	2,4		0,03		0,93
			0,20	750	600000	2,4		0,03		0,93
		III	0,02	380	300000	3,2		0,04		0,92
			0,05	750	600000	2,4		0,03		0,93
			0,10	750	600000	1,6		0,02		0,93
			0,20	1000	800000	1,6		0,02		0,93

Notes:

1. (Deleted, Rev. N 2).

2. Alloy brand 40NKMP manufactured by vacuum melting.

3. The maximum magnetic permeability on an alloy 68NMP determined by the requirement of the user.

Table 12

The magnetic properties of the alloys with the thickness of 0.003 mm with rectangular hysteresis loop

Mark alloy	Product	Class	The coercive force (HC)		Residual induction, (10GS)	Squareness ratio in the field 5 Na vehicles
			Vehicles	E
			No more		Not less than
79NMP	The cold strip	I	9,6	0,12	0,6	0,90
77NMDP	The cold strip	I	7,2	0,09	0,5	0,90

Table 13

Magnetic properties of alloys with a high technical saturation induction

Mark alloy	View products	Class	Strata- on or dia- meter, mm	Induction (10Gauss), the magnetic field strength, A/cm			Specific losses in W/kg			Coercitive- Naya force		Magnetic permeabilit- the cost		Magnetic Strik- tion of the- niya
										Vehicles	E	mH/m	GS/E
				Not less than			No more			No more		Not less than
27KKH	Cold rolled sheets and strips	I	0,2	-	1,8	2,15	80	-	-	-	-	-	-	-
			0,35	-	1,8	2,15	110	-	-	-	-	-	-	-
			0,7	-	1,8	2,15	-	-	-	-	-	-	-	-
	Bars and forgings		10−100	-	1,75	Of 2.05	-	-	-	-	-	-	-	-
49K2FA	Ribbons and leaves	I										maximum
			0,1	-	2,2	-	-	-	-	140	1,75	6,9	5500	-
			0,2	-	2,2	-	-	-	-	120	1,5	6,9	5500	-
		II	0,1	1,8	2,2	-	-	35	45	80	1,0	-	-	-
			0,15−0,2	1,85	2,2	-	-	Thirty nine	55	48	0,6	-	-	-
			0,25−0,7	1,85	2,2	-	-	-	-	48	0,6	-	-	-
		III	0,05	1,8	2,1	-	-	24	29	40	0,5	-	-	-
			0,1	2,0	2,2	-	-	25	30	30	0,38	-	-	-
49KF	Bars and forgings	I	10−100	-	1,9	2,1	-	-	-	160	2,0	-	-	-
		II	10−100	-	2,0	2,2	-	-	-	160	2,0	-	-	-
49K2F	Ribbons and leaves	I	0,1−0,7	-	-	2,25	-	-	-	160	2,0	-	-	60·10
		II	0,1−0,7	-	-	2,25	-	-	-	160	2,0	0,88 in a field of 0.8 A/m	700 in a field of 0.01 e	-

Notes:

1. The numbers in the index of the specific losses means: the top — induction in lower — frequency in Hz.

2. (Deleted, Rev. N 3).

3. (Deleted, Rev. N 2).

4. (Deleted, Rev. N 3).

5. Alloy brand 49K2FA manufactured by vacuum melting.

6. (Deleted, Rev. N 3).

Table 14

The magnetic properties of the alloys with low residual induction and constancy of magnetic permeability

Mark alloy	Product	Class	Thickness, mm	The initial permeabilit- the cost		The ratio of the maximum permeability to the initial	The coefficient butto- activities in the field of 800 A/m (10 e)	Temperature coefficient of permeability in the temperature range from -60 to +120 °C %/°C
				mH/m	GS/E			primary Noah	Maxi maximum
				Not less than			No more
47NK	The cold strip	I	0,01 0,02 0,10	1,1	900	1,15	0,05	0,06	0,06
		II	0,01 0,02 0,10	1,4	1100	1,15	0,05	0,06	0,06
64N	The cold strip	I	0,01 0,02 0,10	2,5	2000	1,2	0,07	0,06	0,06
		II	0,01 0,02 0,10	2,7	2200	1,2	0,07	0,06	0,06
40NKM	The cold strip	I	0,01 0,02 0,10	2,3	1800	1,2	0,07	-	-

Notes:

1. Alloy brand 40NKM manufactured by vacuum melting.

2. (Deleted, Rev. N 3).

Table 15

Magnetic properties of alloys of high magnetic permeability
in unipolar pulsed magnetization

Mark alloy	Product	Class	Tol- ness, mm	Pulse permeability					Induction of technical saturation (10GS)	The coefficient butto- activities in the field of 800 A/m (10 e)	Tempera- temperature coefficient permeabilit- bridges in the temperature range from -60 to +60 °C %/°C
				in the field of 20 A/m (0,25 um)		in the field of 80 A/m (1 OE)
				mH/m	GS/E	mH/m	GS/E
				Not less than					No more
79N3M	The cold strip	I	0,005	6,5	5000	-		-	0,8	0,45	0,25
			0,01	8,8	7000	-		-		0,30	0,25
			0,02	10	8000	-		-		0,25	0,25
69НМ	The cold strip	I	0,02	-	-	7,5		6000	1,15	0,20	0,25

Notes:

1. Alloys are made by vacuum melting.

2. Temperature coefficient the manufacturer checks periodically at least once a year.

Table 16

Magnetic properties of alloys with high corrosion resistance

Grade	Product	Class	Thickness or diameter, mm	The maximum magnetic permeability		Induction (10Gauss) in magnetic field strength, A/cm				The coercive force of
				mH/m	GS/E					Vehicles	E
				Not less than						No more
16X	Cold-rolled sheets and strips	I	0,20 0,35 0,50 1,0 1,5	-	-	0,6	-	1,2	1,45	64	0,8
	Hot-rolled sheets		4−12
	Bars		10−120
	Bars	II	10−120	-	-	0,6	-	1,2	1,45	40	0,5
	Bars	III	10−120	-	-	0,6	-	1,2	1,45	24	0,3
36KNM	Bars	I	15−80	5,6	4500	-	1,3	1,45	-	56	0,7
	Bars	II	15−80	7,5	6000	-	1,3	1,45	-	40	0,5

Note. Alloy brand 16X manufactured by vacuum melting.


Magnetic properties of sheets and strips of intermediate thickness should comply with the nearest size, and in the case that the thickness of the strip corresponds to the arithmetic mean of the two closest sizes to the norms of the larger size.

The heat treatment of the samples is given in mandatory Appendix 1.

The magnetic properties of the tape thickness 0,0015 mm (1.5 µm) and 0.002 mm (2.0 µm) are established by agreement between the consumer and the manufacturer.

According to customer requirements is the definition of magnetic properties in alternating magnetic fields. Characteristics to be checked, norms and methods of control — in coordination with the consumer by the manufacturer.

(Changed edition, Rev. N 2, 3, 4).

3.7. The physical properties of the alloys is given in reference annexes 2 and 3.

3.8. Products from magnetically soft alloys must be manufactured in accordance with the requirements of this standard.

(Changed edition, Rev. N 4).

4. ACCEPTANCE RULES

4.1. (Deleted, Rev. N 3).

4.2. The alloys present to the acceptance of batches, consisting of products of the same thickness or diameter, one mark, one class, one swim trunks.

For cold rolled strips thickness 0.1−2.5 mm level of the magnetic properties of classes I and II, the party may consist of one weld coil, consisting of one or more heats.

4.2. Each batch is accompanied by a quality document containing:

a) names and (or) the trademark of the manufacturer;

b) the brand and grade alloy;

C) the room heats;

g) profile of products, size and weight, number of packing stations;

d) magnetic properties (in the case of the manufacture of welded coils melting point properties with the lowest level of magnetic properties) — at the request of the consumer. In the absence of instructions in the order in the document on quality indicates «match».;

e) the mode of heat treatment and materials used in prepodavanii or metal coating before heat treatment;

g) the chemical composition — at the request of the consumer;

h) the names of the present standard;

s) of the method of smelting in the manufacture;

K) alternative temporary protection or brand of oil (specify only when changing the variant or brand of oil).

(Added, Rev. N 4).

4.3. To determine the chemical composition of the alloy is taken one sample from melting.

(Changed edition, Rev. N 3).

4.4. The quality of the surface and size checked 100% of sheets, rods, coils (coil segments) tape reels (coils) of wire.

(Changed edition, Rev. N 4).

4.5. To measure the magnetic properties of selected:

for tape — single cut, the coil or roll from the party,

worksheets — one worksheet from the party,

wire — one coil or a coil from the party,

for hot rolled and forged bars — single bars from melting.

4.6. The amplitude magnetic permeability alloy grade 81HMA at frequencies of 1, 10, and 100 kHz; 1 MHz and alloy grade 83NF at frequencies of 1 and 15 kHz defines business-to-consumer. The manufacturer of the amplitude magnetic permeability is not defined.

(Added, Rev. N 3).

4.7. (Deleted, Rev. N 4).

4.8. Values for alloys of 27KKH, 49KF and 49K2 °F the manufacturer specifies periodically, but not less than once per year.

4.9. Specific losses for tapes and sheets thickness 0.15−0.2 mm brand 49K2FA class II the manufacturer determines the demand of the consumer.

4.10. Temperature coefficient of permeability alloys 47NK, 64N, 40NKM the manufacturer checks periodically, at least once a year.

4.11. The surface quality and the dimensions of the strip thickness of 2.5 mm the manufacturer checks when rolling.

4.12. The induction of technical saturation the manufacturer checks periodically, at least once a year.

4.13. Temperature coefficient of permeability in the temperature range from minus 20 to plus 20 °C tape thickness of 0.05 and 0.10 mm alloy brand 83NF class II is determined by the requirement of the user.

4.14. If unsatisfactory results of repeated tests are made according to GOST 7566.

4.8−4.14. (Added, Rev. N 3).

5. TEST METHODS

5.1. Samples for chemical analysis were taken in accordance with GOST 7565.

5.2. Chemical analysis of the alloys is carried out according to GOST 12344 — 12365 GOST, GOST 28473 or other methods providing the required accuracy.

(Changed edition, Rev. N 2).

5.3. The quality of the surface and the edges checked visually. If necessary, hot-rolled and forged products Svetla.

For cold rolled strips and wire, the surface is inspected for any area, except the ends of the coil or coil length less than coil.

If necessary, the depth of the defect is determined by the depth gauge micrometer according to GOST 7470 or other tool, to ensure the necessary accuracy, or Stripping prior to the removal of the defect. The location of the defect cleaned with sandpaper or a file with further comparative dimension to the stripped and unstripped areas. If you cannot determine the depth of the defect Stripping determination of the depth and nature of the defect is allowed to produce a metallographic method.

(Changed edition, Rev. N 3, 4).

5.4. The thickness of the tape and sheets are measured with a micrometer according to GOST 4381 or GOST 6507 or by other measurement means appropriate accuracy. The tape width is measured by caliper according to GOST 166.

The thickness of the tape and sheet are measured at a distance of not less than 5 mm from edges and not less than the length of the coil from end of the roll.

The diameter of the wire and rods are measured by Vernier caliper according to GOST 166, micrometer according to GOST 6507 (not less than the length of the loop from the end of a coil of wire), or other appropriate means of measurement precision in two mutually perpendicular directions of the same cross-section in at least three places.

The bar length is measured with a metal ruler according to GOST 427 or measuring tape according to GOST 7502.

(Changed edition, Rev. N 4).

5.5. Sampling for measurement of magnetic properties is carried out:

for cold rolled strips — from any location of the roll, except for the first and last turns;

for sheet — not less than 5 mm from the edge;

for bars — from anywhere, but not closer than 5 mm from the end;

wire — from any location roll.

Samples are made in the form of:

twisted rings — for tapes with a thickness of 0.2 mm or less, strips of alloy grade 50NP in all thicknesses and wire;

package recruited from the stamped rings, for strips of thickness 0.05−1.0 mm;

package, recruited from machined or forged rings, for strips and sheets with thickness more than 1.0 mm and rods with diameter more than 20 mm.

5.6. To control the magnetic properties of rolled strips manufacturer is allowed to determine the magnetic properties on the test samples of the same thickness made from each heat by the technology.

To control bars with diameter less than 20 mm and the wire is allowed to determine the magnetic properties for samples made of blanks of larger diameter.

5.7. Samples for measurements of magnetic properties in the permanent fields are made in accordance with the requirements of GOST 8.377; for measurement in variable fields according to normative-technical documentation.

Specific losses are determined on ring samples made in accordance with GOST 12119.0 — GOST 12119.8. The magnetostriction of saturation is determined on the tape samples 100х10 mm.

5.8. The magnetic properties of the alloys are measured for the samples thermally treated according to the regime specified in Annex 1.

The preparation of samples by the thermal treatment produced in accordance with Annex 1.

5.9. Magnetic properties of samples when the magnetization in constant fields define the ballistic method according to GOST 8.377.

The initial permeability is determined by extrapolation, and the minimum magnetic field strength in the measurement must be:

not more than 0.4 A/m (5·10e) for alloys with 34−65% Nickel;

not more than 0.04 A/m (0,5·10e) for alloys with 70−85% Nickel.

For the technical saturation induction attended induction, measured:

in the fields of tension 4000−4800 A/m (50−60 e) for alloys with 34−65% Nickel;

in the fields of tension And 640−800/m (8−10 e) for alloys with 70−85% Nickel.

Pulsed magnetic permeability determine the ballistic method as the average permeability on a private loop, the limited point of the residual magnetic induction, the limit hysteresis loop and the specified value a positive field.

The magnetostriction of saturation is determined in a magnetic field of 1.9·10A/m (240 e) method of measurement of electrical resistance strain gages of type II according to GOST 21616, GOST 28836 or other regulatory-technical documentation for potentiometric installing the DC At-309 and other, ensuring the necessary measurement accuracy.

For the value of the temperature coefficient of permeability (tap) alloy grade 83NF in the temperature range from -40 to +20 °C With the change of sign of TKP be the arithmetic mean of the values measured in the temperature range from 0 to +20°, -20 ° to +20 °C and from -40 to +20 °C.

5.10. Magnetic properties of samples when the magnetization in alternating fields is determined by normative-technical documentation.

5.7−5.10. (Changed edition, Rev. N 3)

5.11. The magnetic properties determined on one sample from the roll, cut, coil, coil, sheet, rod.

(Added, Rev. N 3).