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The iCARe® Save product family comes with guaranteed losses at 400Hz and indicative maximum values at 700Hz. These values are representative of the steel’s behaviour at high frequencies.
Save grades enable you to reduce the iron losses from the stators of synchronous machines. They are particularly useful for reducing iron losses in high-speed hybrid and electric traction machines, and generators which extend the range of electric vehicles.
The iCARe® grades offer better losses than those of the materials described in the standards (see the brand correspondence table below).
Save grades are most effective at reducing iron losses from machine parts which are subject to high base frequencies and additional harmonics. Save thus helps to improve machine efficiency, which leads to an increase in power density. Power density can be tuned to create a lighter, smaller machine, or a more powerful machine for a given weight. Driving range is extended as Save reduces machine weight and costs and saves battery energy.
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ArcelorMittal name | EN 10303: 2015 | ASTM A1086: 2013 | IEC/CEI 60404-8-8: 2017 |
Save 20-13 | NO 20-13 | NO 20-13 | |
Save 20-15 | NO 20-15 | 20T680 (15,0) | NO 20-15 |
Save 25-14 | NO 25-14 | NO 25-14 | |
Save 25-16 | NO 25-17* | 25T730 (16,0) | NO 25-17* |
Save 27-15 | NO 27-15 | ||
Save 27-17 | NO 27-18* | 27T770 (17,0) | |
Save 30-14.5 | |||
Save 30-15 | NO 30-16* | NO 30-16* | |
Save 30-17 | NO 30-19* | 30T820 (18,0)* | NO 30-19* |
Save 35-18 | |||
Save 35-19 | NO 35-19 | NO 35-19 | |
Save 35-20 | NO 35-22* | NO 35-22* |
* Closest equivalent. The iCARe® grades offer better losses than those of the materials described in the standards.
This brand correspondence above is based on loss level at 1T/400 Hz. Regarding magnetic polarisation, Save grades are at the same level as, or better than, the standard requirements.
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ArcelorMittal name | Conventional density (kg/dm3) | Max. loss (W/kg) at 400 Hz at 1T [Guaranteed] | Max. loss (W/kg) at 700 Hz at 1T [Indicative] | Min. polarisation (T) at 2,500 A/m [Guaranteed] | Min. polarisation (T) at 5,000 A/m [Guaranteed] | Min. polarisation (T) at 10,000 A/m [Indicative] | Max. anisotropy of loss (±%) at 400 Hz at 1T [Guaranteed] | Min. number of bends [Guaranteed] | Min. stacking factor [Guaranteed] |
Save 20-13 | 7.6 | 13 | 29 | 1.49 | 1.60 | 1.70 | 15 | 5 | 0.93 |
Save 20-15 | 7.6 | 15 | 32 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.93 |
Save 25-14 | 7.6 | 14 | 34 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.94 |
Save 25-16 | 7.6 | 16 | 37 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.94 |
Save 27-15 | 7.6 | 15 | 37 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.94 |
Save 27-17 | 7.6 | 17 | 40 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.94 |
Save 30-14.5 | 7.6 | 14.5 | 37 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.95 |
Save 30-15 | 7.6 | 15 | 38 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.95 |
Save 30-17 | 7.6 | 17 | 41 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.95 |
Save 35-18 | 7.6 | 18 | 44 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.95 |
Save 35-20 | 7.6 | 20 | 48 | 1.49 | 1.6 | 1.7 | 15 | 5 | 0.95 |
The data in the following table is provided for information purposes only.
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ArcelorMittal name | Direction | Re (MPa) | Rm (MPa) | Re/Rm | A80 (%) | HV |
Save 20-13 | L | 410 - 450 | 520 - 560 | 0.78 - 0.83 | 10 - 20 | 200 - 230 |
T | 425 - 465 | 535 - 575 | 0.78 - 0.83 | 10 - 20 | 200 - 230 | |
Save 20-15 | L | 390 - 430 | 510 - 550 | 0.76 - 0.81 | 15 - 30 | 195 - 225 |
T | 410 - 450 | 540 - 580 | 0.76 - 0.81 | 15 - 30 | 195 - 225 | |
Save 25-14 | L | 410 - 450 | 520 - 560 | 0.78 - 0.83 | 12 - 25 | 200 - 230 |
T | 425 - 465 | 535 - 575 | 0.78 - 0.83 | 12 - 25 | 200 - 230 | |
Save 25-16 | L | 390 - 430 | 510 - 550 | 0.76 - 0.81 | 15 - 30 | 195 - 225 |
T | 410 - 450 | 540 - 580 | 0.76 - 0.81 | 15 - 30 | 195 - 225 | |
Save 27-15 | L | 410 - 450 | 520 - 560 | 0.78 - 0.83 | 12 - 25 | 200 - 230 |
T | 425 - 465 | 535 - 575 | 0.78 - 0.83 | 12 - 25 | 200 - 230 | |
Save 27-17 | L | 390 - 430 | 510 - 550 | 0.76 - 0.81 | 15 - 30 | 195 - 225 |
T | 410 - 450 | 540 - 580 | 0.76 - 0.81 | 15 - 30 | 195 - 225 | |
Save 30-14.5 | L | 410 - 450 | 520 - 560 | 0.78 - 0.83 | 12 - 25 | 200 - 230 |
T | 425 - 465 | 535 - 575 | 0.78 - 0.83 | 12 - 25 | 200 - 230 | |
Save 30-15 | L | 410 - 450 | 520 - 560 | 0.78 - 0.83 | 12 - 25 | 200 - 230 |
T | 425 - 465 | 535 - 575 | 0.78 - 0.83 | Dec-25 | 200 - 230 | |
Save 30-17 | L | 390 - 430 | 510 - 550 | 0.76 - 0.81 | 15 - 30 | 195 - 225 |
T | 410 - 450 | 540 - 580 | 0.76 - 0.81 | 15 - 30 | 195 - 225 | |
Save 35-18 | L | 410 - 450 | 520 - 560 | 0.78 - 0.83 | 10 - 20 | 200 - 230 |
T | 425 - 465 | 535 - 575 | 0.78 - 0.83 | 10 - 20 | 200 - 230 | |
Save 35-20 | L | 390 - 430 | 510 - 550 | 0.76 - 0.81 | 15 - 30 | 195 - 225 |
T | 410 - 450 | 540 - 580 | 0.76 - 0.81 | 15 - 30 | 195 - 225 |
Save grades can be used immediately after lamination punching. The punching effect can be eliminated by performing a stress relief annealing. This optimises their performance in applications with fine teeth, and enables a substantial part of the lower frequency area to be exploited. A C5-type coating is recommended.
Save stacks can be produced using existing assembly techniques such as interlocking or welding.