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The specialist with the highest permeability
isovac® is the electrical steel made by voestalpine and stands for highest energy efficiency. With its
excellent attribute profile, isovac® provides a higher level of quality that will help you remain a step
ahead of the competition.
This non-grain-oriented, full-finished isovac® grade is produced on one of the world‘s most modern
continuous annealing lines and features a specially adjusted microstructure and texture achieved by a
special annealing process that increases both flux density and magnetizability across the entire range
of the magnetic field. The higher permeability of isovac HP 350-65 A makes it possible to reduce
machine size while maintaining the same amount of torque.
Convincing advantages p Production in one of the world‘s most modern continuous
annealing lines with widths of up to 1650 mm
p Higher rotational speeds/torques with increased output based on higher magnetizability (up to 0.06 T at J25/50/100)
p Machine downsizing for reduced material consumption, lower weight and minimized space requirements
Electrical steel
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voestalpine Steel Division
www.voestalpine.com/isovac
isovac high-perm 350-65 AData sheet • February 2015
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5voestalpine supplies isovac HP 350-65 A, an electrical steel of the highest quality. We offer you a customer-focused overall package of products, service and logistics in addition to all the advantages of our integrated metallurgical facility and Steel Service Centers.
Mechanical properties
Tensile test according to DIN EN ISO 6892-1 and hardness according to DIN EN ISO 6507-1 (Typical values); Test direction: Transverse
Grade named according to isovac®
Yield strength ReH
[MPa]
0.2 %-Yield strength Rp0.2
[MPa]
Tensile strength Rm
[MPa]
ElongationA80 [%]
HardnessHV5[-]
isovac HP 350-65 A 365 355 500 30 185
Magnetic properties
in as-delivered condition (Typical values) Test direction: Mean value from longitudinal and transverse measurements at 50 Hz (60 Hz), single-sheet test
Grade named according to isovac®
Specific total loss Magnetic polarization Relative Permeability
1.0 T P10
1.5 TP15
2500 A/mJ25
5000 A/m J50
10000 A/m J100
1.5 T μr
50 Hz [W/kg]
60 Hz [W/lb]
50 Hz [W/kg]
60 Hz [W/lb] [T] [T] [T] [-]
isovac HP 350-65 A 1.35 0.80 3.10 1.80 1.62 1.71 1.82 2400
Physical properties
(Typical values)
Grade named according to isovac®
Density
[g/cm3]
Specific electrical resistances
[μΩcm]
Thermal conductivity
[W/mK]
isovac HP 350-65 A 7.68 52.0 25
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0.0
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1.0
10.0
100.0
1000.0
0 500 1000 1500
P S [W
/kg]
J [mT]
50 Hz
60 Hz
200 Hz
400 Hz
500 Hz
Characteristics Ps/J loss curve and characteristics J/H magnetization curve
Test direction: Mean value from longitudinal and transverse measurements at indicated frequencies, single-sheet test
Characteristics μr/J permeability curve
Test direction: Mean value from longitudinal and transverse measurements at 50 Hz, single-sheet test
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
0 500 1000 1500 2000
µ r
J [mT]
50 Hz
0
200
400
600
800
1000
1200
1400
1600
1800
10 100 1000 10000
J [mT]
H [A/m]
50 Hz
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5Frequency dependence of magnetic properties
Test direction: Mean value longitudinal and transverse at indicated frequencies and polarizations, single-sheet test
50 Hz
J[mT]
H[A/m]
Ps
[W/kg]μr
[-]
100 29 0.02 2996150 33 0.06 3549200 38 0.10 4095250 43 0.15 4628300 47 0.19 5140350 52 0.24 5624400 56 0.30 6074450 61 0.36 6483500 65 0.42 6843550 69 0.50 7151600 73 0.58 7408650 77 0.66 7619700 82 0.75 7789750 86 0.85 7922800 91 0.95 8023850 96 1.05 8095900 101 1.16 8139
1000 114 1.40 81401050 121 1.53 80941100 130 1.67 80011150 140 1.81 78351200 152 1.96 75361250 170 2.12 70531300 194 2.29 63941350 230 2.47 55771400 292 2.67 45951450 408 2.89 34721500 656 3.12 23711550 1129 3.37 14591600 1929 3.61 8101650 3118 3.86 4481700 4592 4.10 292
200 Hz
J[mT]
H[A/m]
Ps
[W/kg]μr
[-]
100 33 0.14 2597150 40 0.41 2950200 47 0.69 3297250 55 0.98 3631300 61 1.29 3946350 68 1.63 4234400 75 2.00 4491450 82 2.42 4709500 89 2.89 4882550 96 3.41 5005600 103 3.99 5084650 110 4.63 5123700 117 5.33 5130750 125 6.09 5111800 133 6.92 5073850 141 7.81 5020900 151 8.77 4957
1000 170 10.93 48111050 181 12.14 47331100 192 13.43 46481150 204 14.81 45571200 216 16.31 44771250 227 17.94 44111300 244 19.69 42711350 275 21.57 39801400 325 23.54 35891450 419 25.60 31351500 653 27.76 24981550 1140 30.03 16131600 1984 32.47 7911650 3244 35.11 3441700 4809 37.91 208
60 Hz
J[mT]
H[A/m]
Ps
[W/kg]μr
[-]
150 35 0.08 3469200 41 0.13 3986250 45 0.18 4491300 50 0.24 4980350 55 0.30 5447400 60 0.37 5886450 64 0.44 6292500 68 0.53 6659550 72 0.61 6984600 76 0.71 7265650 80 0.82 7505700 84 0.93 7704750 88 1.05 7864800 92 1.17 7985850 96 1.30 8070900 101 1.44 8122
1000 112 1.74 81391050 119 1.90 81071100 126 2.07 80241150 135 2.26 78781200 145 2.46 77221250 158 2.67 75701300 177 2.89 72151350 207 3.13 64521400 268 3.40 52991450 390 3.68 38801500 649 3.99 25081550 1137 4.31 14731600 1968 4.63 7991650 3215 4.95 4321700 4768 5.27 278
400 Hz
J[mT]
H[A/m]
Ps
[W/kg]μr
[-]
100 39 0.42 2171150 48 1.13 2423200 57 1.87 2668250 66 2.66 2900300 75 3.52 3113350 85 4.47 3301400 95 5.55 3456450 105 6.77 3572500 116 8.16 3644550 128 9.74 3666600 139 11.53 3647650 152 13.53 3595700 166 15.77 3521750 180 18.26 3433800 195 21.01 3342850 211 24.03 3254900 229 27.34 3171
1000 267 34.94 30071050 288 39.27 29241100 310 43.98 28431150 332 49.09 27661200 357 54.60 26881250 383 60.52 26051300 408 66.93 25411350 429 73.83 25021400 464 81.09 24051450 543 88.56 21661500 754 96.43 17721550 1198 104.93 12601600 2002 114.33 7811650 3249 124.81 4761700 4823 136.08 315
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5Frequency dependence of magnetic properties
Test direction: Mean value longitudinal and transverse at indicated frequencies and polarizations, single-sheet test
500 Hz
J[mT]
H[A/m]
Ps
[W/kg]μr
[-]
150 50 1.55 2278200 61 2.56 2474250 71 3.65 2658300 82 4.85 2825350 93 6.20 2969400 105 7.74 3084450 117 9.51 3164500 130 11.55 3203550 144 13.88 3199600 159 16.54 3157650 175 19.54 3089700 192 22.91 3002750 210 26.65 2907800 230 30.80 2813850 250 35.37 2727900 272 40.40 2648
1000 321 52.04 24981050 347 58.71 24231100 374 65.96 23511150 402 73.75 22851200 432 82.13 22191250 464 91.14 21501300 494 100.84 20981350 520 111.24 20681400 560 122.16 19901450 643 133.55 18041500 812 146.07 1561
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5Available dimensions
Grade named according to isovac®
Delivery form Width[mm]
Length[mm]
isovac HP 350-65 AWide strip/Slit strip 19 – 1600 -
Cut-to-length sheets 300 – 1600 300 – 6000
Deliverable coating systems
Grade named according to isovac® Uncoated C-3 Backlack C-5 C-6 Blue
isovac HP 350-65 A X X On request X X -
The information and product properties contained in this printed material are non-binding and serve the exclusive purpose of technical orientation. They do not replace individual con-sultation provided by our sales and customer service teams. The information and product properties contained in this brochure are guaranteed only when specifically and contractually stipulated. All rights reserved. Not responsible for printing errors or technical changes. Duplication in part or in whole is subject to explicit written permission by voestalpine Stahl GmbH.
Please find further information and downloadable files atwww.voestalpine.com/isovac
voestalpine Steel Divisionvoestalpine-Straße 34020 Linz, AustriaT. +43/50304/[email protected]/isovac