1、 CEN EN*LO*Zb5 95 m 3404589 OL29156 974 BRITISH STANDARD Magnetic materials - Specification for steel sheet and strip with specified mechanical properties and magnetic permeability The European Standard EN 10265 : 1995 has the status of a British Standard ICs 29.040.10; 77.140.50 NO COPYING WITHOUT
2、BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 10265 : 1996 CEN EN*L0*2b5 75 m 3404589 OL29L57 800 m Amd. No. Date BS EN 10265 : 1996 Text afected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technid Committee ISEYNW5, Magnetic
3、 alloys and steels, upon which the following bodies were represented Association of Manufacturers AlJied to the Electrical and Electronic Industry (BEAMA Ltd.) Steel Industry Department of Ti.ade and Industry (National Physical Laboratory) Electricity Supply Industry in England and Wales GAMBICA (BE
4、AMA Ltd.) Institute of Physics Rotating Electrical Machhes Association (BEAMA Ltd.) Sunderland Polytechnic (Magnet Centre) I1.ansmission and Distribution Association (BEAMA Ltd.) Wolfson Centre for Magnetics Technology Co-opted members This British Standard, having been prepared under the direction
5、of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1996 O BSI 1996 The following BSI references relate to the work on thii standard Committee reference ISE/NFE/5 Draft for comment 87/40325 DC ISBN O 680 25546 8 CEN EN*LO*Zh5 95
6、m 3404589 !3l129L58 747 m BS EN 10265 : 1996 Contents Committees responsible National foreword Page Inside front cover ii Foreword Text of EN 10265 2 3 O BSI 1996 i CEN EN* 1200 Page 5 EN 10266 : 1995 e 5 1,5 1,5 1200 f 0,17 f 0,23 f 0,21 f 0,19 * 0,22 * 0,24 f 0,24 f 0,24 f 0,24 0,27 f 0,31 * 0,35
7、f 0,36 f 0,39 f 0,44 * 0,26 f 0,29 * 0,31 f 0,32 * 0,36 f 0,43 3 1200 1 f0,22 1 +o25 1 +0,28 1 +0,29 I*0,31 1 1 iii) Grades with a proof stress greater than 400 N/m2. The following table gives the permitted tolerances as a function of the nominal width of the material: Nominal width 2 (mm) I Permitt
8、ed tolerances for nominal thickness e (mm) b) Cold-dkd materiah The following table gives the permitted tolerances for all grades: I Nominal width 1 (mm) 15600 600 1200 Permitted tolerances for nominal thickness e (mm) I O BSI 1996 CEN EN*LO*2b5 75 = 3404587 OL29Lb5 787 Nominal thickness e (mm) e 5
9、1,5 e 1,5 Page 6 EN 10265 : 1995 Permitted difference for width 1 (mm) 160 5 1 5 600 600 1200 0,05 0,07 - 0,06 0.08 o. 10 7.3.1.2 The variation in thickness within a sheet or a length of coil of 2 m in a direction parallel to the direction of rolling shall not exceed 8 % of the nominal value for the
10、 thicknesses e 5 1,5 mm; 5 % of the nominai value for the thicknesses e 1,5 m. 450 7.3.1.3 The variation in thickness in a direction perpendicular to the direction of rolling shall not exceed the values in the tables below: a) Hot-rolled material e 5 1,5 o, 10 o, 12 - e 1,5 o, 12 O, 14 0,16 Proof st
11、ress 40,2 (N/m2 I 450 Nominal thickness e (mm) Permitted difference for width 1 (mm) 160 5 15 600 1600 1200 Nominal width 1 (mm) Proof stress %0,2 (N/mm2 Permitted tolerances (mm) Hot-rolled products e 5 0,7 0,04 0,05 07% I e 0,7 0,06 0,07 0,08 Cold-rolled products for thickness e (mm) e 5 1,5 1,6 i
12、 e 5 3,26 2,6 1200 I +oO + 7,O + 6,O + 5,O O O + 8,O + 7,O + 7,O O O O O 100 22) 7.3.3 Length The following tolerances shall apply to the length of the sheets cut from coils: Grade I Length L (mm) I Permitted tolerances (mm) I Maximum distance for nominal thickness e (mm) e 5 0,7l) I 0,7 1,23) 250 3
13、00 350 400 250 - 350 0,006 X L 0,005 X L 0,007 X L 400 - 500 0,007 x L 0,006 x L 0,008 x L For lengths L 5 .-TG 180 1.0270 Page 9 EN 10265 : 1995 stress- RpO,z (N/mm2) R, (N/mm2) 1 strength 1 A (%) Lo = 80 mm 250 1 350 122 hble 1. Mechanical and magnetic characteristics of hot-rolled products 30 .-T
14、G 180 350-.-TG 179 iteel grade 1.0271 I300 I400 I 2o 1.0272 I350 I 450 I 18 Minimum Minimum Minimum percentage Minimum magnetic flux 0,2 % proof tensile elongation after fracture density (teslas) for a 24 1 1160 22 I 1,55 1,80 1,79 magnetic field strength I (Nm of 19 I 455 17 I 1-54 Lo = 5,65 dSo) I
15、 5000 115000 26 1 1,60 1 1,80 1,79 1.79 I 400-.-TG 179 1 1.0273 I400 1 500 450- .- TG 179 I 1.0274 I450 I 550 I 14 300-.-TG 179 I 1.0275 I500 1600 I 12 14 I 453 I 1,79 I l2 350-.-TG 178 I 1.0276 I550 1 650 60 .-TG 178 1 1.0277 I600 I700 I 10 I lo 700- .- TG 178 1 1.0279 1 700 1800 I 10 65 .-TG 178 I
16、 1.0278 I650 I 750 1 These values are related to proportional test pieces with a rectangular cross-section of 80 mm2. For other cross-sections, the values shall be derived from the values for Lo= 80 mm in accordance with IS0 2566-1. 2, It has been common practice for many yeas to give values of magn
17、etic flux density in tables such as the one above. In fact the Epstein frame is used to detennine magnetic polarization (intrinsic flux density) which is defined as J = B - c$ where: J = magnetic polarization i3 = magnetic flux density ,uo = magnetic constant H = magnetic field strength in accordanc
18、e with IEC 50 (221) hable 2. Mechanical and magnetic characteristics of cold-rolled products steel grade Minimum magnetic flux density (teslas) for a magnetic field strength (Min) of percentage elongation after fracture A (%) Vame I Number 250- .-TF 183 1 1.0280 300- .-TF 182 I 1.0281 250 1 325 300
19、I375 350- .-TF 181 1 1.0282 400- .- TF 180 1 1.0283 ) It has Epstein where: been common practice for many years to give values of magnetir flux density in tables such as the one above. In fact the frame is used to determine magnetic polarization (intrinsic flux density) which is defined as J = B - ,
20、u$ J = magnetic polarization B = magnetic flux density po = magnetic constant H = magnetic field strength in accordance with IEC 50 (221) O BSI 1996 Page 10 EN 10265 : 1995 Figure 1. Wave factor in the case of a length of strip I Figure 2. Flatness in the case of a sheet I Figure 3. Verification of
21、the edge camber O BSI 1996 CEN EN*L0*265 95 W 3404589 OL29LO 244 = BS EN 10265 : 1996 List of references See national foreword. O BSI 1996 CEN EN*II0*2bS 95 3qOq589 0II29L7II II80 BS EN 10265 : 1996 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent n
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