WISCO cold rolled non-oriented silicon steel-Shandong Beishang Guangshen Metal Manufacturing Co., Ltd.

WISCO cold rolled non-oriented silicon steel

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PRODUCT DESCRIPTION

1. INTRODUCTION:

（1）Different in nature

Oriented silicon steel: Oriented silicon steel, also known as cold-rolled transformer steel, is an important ferrosilicon alloy used in the transformer (iron core) manufacturing industry.

Non-oriented silicon steel: Non-oriented silicon steel is a ferrosilicon alloy with very low carbon content, and its grains are distributed in random orientation in the steel plate after deformation and annealing.

（2）Different characteristics

Oriented silicon steel: The magnetism of oriented silicon steel has strong directionality, the iron loss value is the lowest in the rolling direction, the magnetic permeability is the highest, and it has a high magnetic induction value under a certain magnetization field. The silicon content of grain-oriented silicon steel is about 3%, and the content of oxide inclusions in the steel is required to be low, and it must contain some kind of inhibitor (MnS, A1N ).

Non-oriented silicon steel: Non-oriented silicon steel is a ferrosilicon alloy containing 0.8%-4.8% silicon, which is hot-rolled and cold-rolled into a silicon steel sheet with a thickness of less than 1mm. Adding silicon can increase the resistivity and maximum permeability of iron, and reduce the coercive force, core loss (iron loss) and magnetic aging.

（3）The production process is different

Oriented silicon steel: Oriented silicon steel is smelted in an oxygen converter. The billet is rolled into finished product thickness through hot rolling, normalization, cold rolling, intermediate annealing and secondary cold rolling, then decarburization annealing and high temperature annealing, and finally coated with an insulating layer.

Non-oriented silicon steel: pre-desulfurization of molten iron, secondary desulfurization by adding Ca0+CaF: flux or rare earth elements and calcium during converter blowing. The boiling molten steel is decarburized by vacuum treatment and then further desulfurized. Ferrosilicon with low titanium and zirconium content is selected for alloying.

2. APPLICATION:

Oriented silicon steel application	HiB steel	General Oriented Silicon Steel	Thin gauge grain oriented silicon steel
Large power transformer	✶	✶
Small and medium power transformer	✶	✶
distribution transformer	✶	✶
Regulator	✶	✶
Reactor and Magnetic Amplifier	✶	✶	✶
IF Transformer	✶	✶	✶
Transformer	✶	✶
TV transformer	✶	✶	✶
Radio transformer	✶	✶	✶
Welding transformer		✶
Large motor	✶	✶

3.Dimensions of Products：

Available thickness	Available width range	Inside diameter
mm	mm	mm
0.15、0.20	950-1000	508 ± 10
0.30、0.35、0.50、0.70、0.75、0.80、0.85	1000-1250	508 ± 10

4.Dimensional and Shape Tolerances：

Nominalthickness	Nominal thicknesstolerance	Traversethicknesstolerance	Widthtolerance	Flatness	Camber within 2m
mm	mm	mm	mm	0	mm
0.15	± 0.012	≤0.010	0~+1.5	≤1.5	≤1.0
0.20	± 0.012	≤0.010
0.30	± 0.015	≤0.012
0.35	± 0.015	≤0.012
0.50	± 0.020	≤0.015
0.70	± 0.030	≤0.025
0.75	± 0.030	≤0.025
0.80	± 0.040	≤0.030
0.85	±0.040	≤0.030

5.Typical Mechanical Properties：

Grade	Yield strengthN/mm²		Tensile strengthN/mm²		Elongation%		HV5 Hardness	Laminationfactor%
Grade	L	C	L	C	L	C
35WW230	415	435	520	540	16	18	195	98.0
35WW250	415	435	520	540	16	18	195	98.0
35WW270	415	435	520	540	16	18	195	98.0
35WW300	395	410	510	530	25	26	185	98.0
35WW360	380	400	490	505	27	29	170	98.0
35WW440	270	280	415	435	30	32	140	98.0
50WW250	420	440	520	540	16	18	195	98.5
50WW270	420	440	520	540	16	17	195	98.5
50WW290	420	440	520	540	16	18	195	98.5
50WW310	390	410	510	530	25	27	185	98.5
50WW350	390	410	510	530	25	27	185	98.5
50WW400	380	400	490	510	27	30	170	98.5
50WW470	265	275	420	440	30	32	140	98.5
50WW600	280	295	410	425	40	42	130	98.5
50WW800	255	265	380	390	45	46	105	98.5
50WW1300	230	240	350	360	50	50	100	98.5
20WTG1500	400	415	510	525	22	21	175	97.0
30WGP1600	420	430	520	530	16	18	190	98.0
30WGP1700	395	405	520	530	16	18	190	98.0
50WH470	300	315	440	452	33	34	150	98.5
50WH600	250	265	420	435	38	39	135	98.5

6.Standard Magnetic Properties：

Grade	Nominalthickness	Theoreticaldensity	Max.Core loss	Min.Induction	Min.Number ofbends	Min.Lamination factor
			P1550	50Hz
			P1550	5000
	mm	kg/dm³	W/kg	T		%
35WW230	0.35	7.60	2.10	1.62	3	96.0
35WW250		7.60	2.30	1.62	3
35WW270		7.60	2.50	1.62	3
35WW300		7.65	2.70	1.62	6
35WW360		7.65	3.30	1.63	6
35WW440		7.70	4.00	1.65	6
50WW250	0.50	7.60	2.30	1.62	3	97.0
50WW270		7.60	2.50	1.62	3
50WW290		7.60	2.70	1.62	3
50WW310		7.60	2.90	1.62	3
50WW350		7.65	3.10	1.62	6
50WW400		7.65	3.50	1.64	6
50WW470		7.70	3.30	1.70	10
50WW600		7.75	4.20	1.67	12	97.5
50WW800		7.80	5.80	1.70	15
50WW1300		7.85	7.50	1.74	15
50WH470	0.50	7.70	3.00	1.71	8	97.0
50WH600		7.75	3.50	1.72	10	97.0

Grade	Nominalthickness	Theoreticaldensity	Max.Core loss	Min. Induction		Min.Number ofbends	Min.Lamination factor
			P1.0400	50Hz	400Hz
			P1.0400	5000	2000
	mm	kg/dm³	W/kg	T			%
20WTG1500	0.20	7.65	15.0		1.40	-	93.0
30WGP1600	0.30	7.60	16.0	1.62		3	95.5
30WGP1700	0.30	7.60	17.0	1.62		5	95.5

Note:

a. Testing standard is GB/T3655.

b. Using as-sheared specimens one half longitudinal and one half transverse to the rolling direction.

7.Typical Magnetic Properties：

Grade	Nominalthicknessmm	Theoreticaldensitykg/dm³	Core lossW/kg				InductionT
			50Hz		60Hz
			1.0T	1.5T	1.0T	1.5T	2500A/m	5000A/m
35WW230	0.35	7.60	0.85	2.06	1.08	2.61	1.57	1.67
35WW250		7.60	0.92	2.20	1.16	2.74	1.58	1.67
35WW270		7.60	1.00	2.33	1.25	2.92	1.58	1.67
35WW300		7.65	1.00	2.45	1.26	3.07	1.60	1.68
35WW360		7.65	1.16	2.69	1.44	3.35	1.60	1.69
35WW440		7.70	1.20	2.82	1.51	3.53	1.64	1.72
50WW250	0.50	7.60	0.94	2.26	1.24	3.01	1.59	1.67
50WW270		7.60	1.01	2.45	1.27	3.06	1.59	1.67
50WW290		7.60	1.07	2.49	1.36	3.20	1.59	1.67
50WW310		7.60	1.16	2.68	1.47	3.44	1.59	1.69
50WW350		7.65	1.18	2.70	1.51	3.45	1.61	1.69
50WW400		7.65	1.23	2.83	1.56	3.62	1.61	1.68
50WW470		7.70	1.35	3.15	1.74	4.06	1.65	1.72
50WW600		7.75	1.71	3.79	2.16	4.82	1.64	1.72
50WW800		7.80	2.10	4.67	2.41	5.49	1.66	1.74
50WW1300		7.85	2.44	5.32	3.09	6.85	1.68	1.76
50WH470	0.50	7.70	1.27	2.86	1.61	3.63	1.65	1.73
50WH600	0.50	7.75	1.42	3.21	1.79	4.06	1.66	1.73

Grade	Nominalthicknessmm	Theoreticaldensitykg/dm³	Core lossW/kg					Induct ion T
			50Hz		60Hz		400Hz	Induct ion T
			1.0T	1.5T	1.0T	1.5T	1.0T	2500A/m	5000A/m
20WTG1500	0.20	7.65	1.06	2.50	1.29	3.08	13.06	1.55	1.65
30WGP1600	0.30	7.60	0.86	2.12	1.07	2.66	14.68	1.55	1.65
30WGP1700	0.30	7.60	0.85	2.12	1.07	2.66	14.81	1.54	1.64

8.Packing：

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1. INTRODUCTION:

2. APPLICATION:

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