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iCARe® Save

Properties

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.

Advantages

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.

Applications

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.

Recommendations for use

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.

Brand correspondance

 EN 10303 :2015ASTM A1086 :2013IEC/CEI 60404-8-8 :1991
Save 20-13NO 20-13  
Save 20-15NO 20-1520T680 (15,0)NO 20 (15,0)
Save 25-14NO 25-14  
Save 25-16 25T730 (16,0) 
 NO 25-17  
Save 27-15NO 27-15  
Save 27-17 27T770 (17,0) 
 NO 27-18  
Save 30-15   
 NO 30-16  
Save 30-17   
  30T820 (18,0) 
 NO 30-19  
Save 35-18   
 NO 35-19  
Save 35-20   
 NO 35-22  


This brand correspondence above is based on loss level at 1T/400 Hz. Regarding polarization, Save grades are at the same level or better than the standard requirements.

Magnetic properties

 Conventional density (kg/dm3)Max loss (W/kg)Min polarisation (T)Max anisotropy of loss (±%) at 400 Hz at 1TMin number of bendsMin stacking factor
At 400 Hz at 1TAt 700 Hz at 1TAt 2,500 A/mAt 5,000 A/mAt 10,000 A/m
  GuaranteedIndicativeGuaranteedGuaranteedIndicativeGuaranteedGuaranteedGuaranteed
Save 20-137.601329 1.491.60 1.70 1550.93
Save 20-157.6015321.491.601.701550.93
Save 25-147.6014341.491.601.701550.94
Save 25-167.6016371.491.601.701550.94
Save 27-15 7.6015371.491.601.701550.94
Save 27-177.6017401.491.601.701550.94
Save 30-157.6015381.491.601.701550.95
Save 30-177.6017411.491.601.701550.95
Save 35-187.6018441.491.601.701550.95
Save 35-207.6020481.491.601.701550.95

Mechanical properties

The data in the following table is provided for information purposes only.

 DirectionRe (MPa)Rm (MPa)Re/RmA80 (%)HV
Save 20-13 L410 - 450520 - 5600.78 - 0.8310 - 20200 - 230
T425 - 465535 - 5750.78 - 0.8310 - 20200 - 230
Save 20-15 L390 - 430510 - 5500.76 - 0.8115 - 30195 - 225
T410 - 450540 - 5800.76 - 0.8115 - 30195 - 225
Save 25-14 L410 - 450520 - 5600.78 - 0.8312 - 25200 - 230
T425 - 465535 - 5750.78 - 0.8312 - 25200 - 230
Save 25-16 L390 - 430510 - 5500.76 - 0.8115 - 30195 - 225
T410 - 450540 - 5800.76 - 0.8115 - 30195 - 225
Save 27-15 L410 - 450520 - 5600.78 - 0.8312 - 25200 - 230
T425 - 465535 - 5750.78 - 0.8312 - 25200 - 230
Save 27-17 L390 - 430510 - 5500.76 - 0.8115 - 30195 - 225
T410 - 450540 - 5800.76 - 0.8115 - 30195 - 225
Save 30-15 L410 - 450520 - 5600.78 - 0.8312 - 25200 - 230
T425 - 465535 - 5750.78 - 0.8312 - 25200 - 230
Save 30-17 L390 - 430510 - 5500.76 - 0.8115 - 30195 - 225
T410 - 450540 - 5800.76 - 0.8115 - 30195 - 225
Save 35-18L410 - 450520 - 5600.78 - 0.8310 - 20200 - 230
T425 - 465535 - 5750.78 - 0.8310 - 20200 - 230
Save 35-20 L390 - 430510 - 5500.76 - 0.8115 - 30195 - 225
T410 - 450540 - 5800.76 - 0.8115 - 30195 - 225


Further information

For more information about ArcelorMittal’s iCARe® range of electrical steels and the support we can provide, please visit: http://automotive.arcelormittal.com/automotive/icare.

For information about the packaging of our materials, please click here.

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