GOST 10160 75 - high quality steel from the supplier Evek GmbH / Evek

1. GRADES AND CLASSIFICATION

1.1 Depending on the basic properties, alloys are made of the following groups and grades, listed below.

Group	Grade	Basic properties
1	79NM, 80NHC, 81HMA, 83NF	Highest magnetic permeability in weak fields
2	50NCHS	High magnetic permeability and higher electrical resistivity.
3	45H, 50H	Higher magnetic permeability and increased induction of technical saturation
4	50NP, 68NMP, 34NKMP, 35NKHSP, 40NKMP, 79NMP, 77NMDP	Rectangular hysteresis loop. The alloys exhibit anisotropy of magnetic properties
5	27KX, 49KF, 49K2F, 49K2FA	High technical magnetic induction
6	47NC, 64N, 40NCM	Low residual magnetic induction and constant magnetic permeability. The alloys possess anisotropy of magnetic properties
7	79N3M, 68NM	High magnetic permeability under unipolar magnetization. The alloys possess anisotropy of magnetic properties.
8	16CR, 36NKM	High corrosion resistance

2. SORTMENT

Cold-rolled steel strip dimensions and thickness tolerances shall be as specified below

Thickness, mm	Thickness tolerance, mcm, at rolling accuracy		Width, mm	Strip length, m minimum
	normal	high		in rolls	in strips
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, 70-100	10	-
0,01	±1,0	-	70-100	20	-
0,02	-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	-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

Limit deviations in width (in mm) of unedged strips should correspond to the specified in Table 3, edged strips - in Table 4.
Table 3

Band thickness	Sliver width tolerance limit for width
	up to 100	110 to 140	over 150
	Not more
Less than 0,05	+4	-	-
From 0,05 to 2,5	+5	+7	+10

Table 4

Belt thickness	Limit deviation in belt width at width
	up to 100	over 100
	Not 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

It is allowed to produce sheets with width less than 500 mm. Dimensions of hot-rolled sheets and their limiting deviations shall be as follows

-Table 5

Thickness	Thickness tolerance	Width	Length, not less
From 3 to 5	±0,2		800
" 8	±0,4	Multiples of 100,	500
" 8 "14	±0,5	not more than 600
" 14 "22	±0,7		300

As agreed with the manufacturer, sheets can be made up to 800 mm wide and up to 32 mm thick.

Table 6

Magnetic properties of alloys with highest magnetic permeability in weak fields

Grade of alloys	Type products	Class	Thickness or diameter, mm	Initial permeability permeability		Maximum permeability		Coercive force		Technical saturation induction
				mGn/m	Gs/E	mGn/m	Gs/E	A/m	Э	(10Gs)
				Not less				Not less		Not less
79NM	Cold-rolled belts	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
	Cold 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
	Rods		8-100	25	20000	100	80000	3,2	0,04
79HM	Cold rolled belts	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
79HM	Cold rolled belts	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
80HS	Cold rolled belts	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
	Rods		8-100	25	20000	88	70000	3,2	0,04
80HS	Cold rolled belts	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
80NHS		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

Table 7 Magnetic properties of 81NMA grade alloy when magnetized in constant and alternating fields

Product Type	Class	Thickness or diameter, mm	Magnetic permeability in the field 0,08 A/m (0,001 E)		Maximum magnetic permeability		Coercivity coercivity		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
			mGn/m	Gs/E	mGn/m	Gs/E	A/m	Э	T (10Gs)	mGn/m	Gs/E	mGn/m	Gs/E	mGn/m	Gs/E		mGn/m	Gs/E
			Not less				Not more		Not less
Cold-rolled belts	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	-	-	-	-	-		-	-	-
Rods		10-50	50	40000	190	150000	1,6	0,020	0,50	-	-	-	-	-		-	-	-
Cold-rolled belts	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	-		-	-	-
Cold drawn wire		0,05	12,5	10000	63	50000	4,8	0,06	0,50	-	-	-	-	-		-	-	-
Cold rolled belts	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
Cold drawn wire		0,05	25	20000	94	75000	3,2	0,04	0,5

Table 8 Magnetic properties of 83NF grade alloy at magnetization in constant and alternating fields

Product Type	Class	Thickness, mm	Magnetic permeability in the field 0,08 A/m (0,001 E) for frequency						Temperature coefficient of permeability % °С, in the temperature range, °С			Induction of technical induction of technical saturation T (10Gs)	Coercivity coercivity
	0 Hz		1 kHz		15 kHz
			mGn/m	Gs/e	mGn/m	Gs/E	mGn/m	Gs/E	-20 to +80	-20 to +20	from -40 up to +20		А/m	Э
			Not less						Not less			Not less	Not less
Cold-rolled tapes belts	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		-	-

Table 9 Magnetic properties of 50HXS alloy with high magnetic permeability and increased electrical resistivity

Product Type	Class	Thickness, mm	Initial magnetic permeability		Maximum permeability		Coercivity coercive force		Induction of technical saturation
			mGn/m	Gs/E	mGn/m	Gs/E	A/m	Э	(10Gs)
			Not less				Not more		Not less
Cold-rolled belts	I	0,005	1,25	1000	10	8000	56	0,70	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 with high magnetic permeability and increased induction of technical saturation

Mark alloy	Product Type	Class	Thickness or diameter, mm	Initial magnetic permeability		Maximum permeability		Coercive force		Induction of technical saturation (10Gs)
				mGn/m	Gs/E	mGn/m	Gs/E	A/m	Э
				Not less				Not less		Not less
50Н	Cold-rolled belts	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
	Rods		8-100	3,1	2500	25	20000	24	0,30
50Н	Cold-rolled belts	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	Cold rolled belts	III	0,05 0,10 0,20	12,5*	10000*	75	60000	4,0	0,05	1,52
45Н	Cold rolled belts	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
	Rods		8-100	2,5	2000	23	18000	24	0,30

Table 11 Magnetic properties of alloys with rectangular hysteresis loop

Mark alloy	Product Type	Class	Thickness thickness on mm	Maximum magnetic permeability		Coercive force			Induction of technical saturation, (10Gs)	Rectangularity coefficient in a field of 800 A/m (10 E)
				mGn/m	Gs/e	A/m	Э
				Not less		Not less			Not less
50NP	Cold-rolled belts	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	0,94
			0,02	95	75000	13		0,16		0,94
			0,05	100	80000	11		0,14		0,94
34NKMP	Cold rolled belts	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
35NKHSP	Cold rolled belts	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	Cold rolled belts	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	Cold rolled belts	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

Table 12 Magnetic properties of 0.003 mm alloys with rectangular hysteresis loop

Mark alloy	Product Type	Class	Coercive force (Ns)		Residual induction, (10Gs)	Coefficient of rectangularity in a field of 5 Ns A/m
			A/m	Э
			No more than		Not less
79NMP	Cold-rolled belts	I	9,6	0,12	0,6	0,90
77NMDP	Cold rolled belts	I	7,2	0,09	0,5	0,90

Table 13 Magnetic properties of alloys with high induction technical saturation

Mark alloy	Type products	Class	Thickness thickness or dia- metre, mm	Induction (10Gs), at magnetic field strength, A/cm			Specific loss, W/kg			Coercivity coercive force		Magnetic permeability permeability		Magnet- strick- saturation saturation
										Automobile	Э	mGn/m	Gs/E
				Not less			Not more			Not less		Not less
27KH	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	2,05	-	-	-	-	-	-	-	-
49K2FA	Tapes and sheets	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	-	-	39	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	Tapes and sheets	I	0,1-0,7	-	-	2,25	-	-	-	160	2,0	-	-	60-10
		II	0,1-0,7	-	-	2,25	-	-	-	160

Table 14 Magnetic properties of alloys with low residual induction and constant magnetic permeability

Mark alloy	Product Type	Class	Thickness, mm	Initial permeability permeability		Ratio of maximum permeability to initial permeability	Rectangularity coefficient, permeability in the field 800 A/m (10 Э)	Temperature coefficient of permeability in the temperature range from -60 to +120 °С, %/°C
				mGn/m	Gs/e			initial- initial	maximum maximum
				Not less			Not more than
47NK	Cold-rolled belts	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
64Н	Cold rolled belts	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	Cold rolled belts	I	0,01 0,02 0,10	2,3	1800	1,2	0,07

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GOST 10160 75 - High-quality and high-quality steel. Calibrated steel

1. GRADES AND CLASSIFICATION

2. SORTMENT

Magnetic properties of alloys with highest magnetic permeability in weak fields

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