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1 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF NEVNON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV To be a sincere and reliable partner for our customers in providing electrical steels and solutions to achieve win-win collaboration for sustainable EVI EVI (Eearly Vendor Involvement) Philosophy in Baosteel Customer Thinking From customer, Serve customer, Achieve customerSynergy Thinking Same target, Net-working, One voiceEnterprising Thinking Professional, Sincere dedication, Exceed expectation2 EVI EVI Culture in Baosteel Baosteel could offer a variety of specialized services and technical support from material selection in design stage to traction motor iron core manufacturing, including.

2 3 EVI4 Steel s EVI in Baosteel for Traction Motor of NEVS teel Product System for Traction Motor of NEV To support customers in electrical steel grade selection for motor design, in order to achieve excellent performance and cost control. To support customers in optimization of material and structure of motor core to achieve performance improvement or cost reduction. To support customers in iron core manufacturing to achieve a good match between material and working facilities. To recommend customers with new products and new technology to improve the competency of their new Electrical Non-oriented Electrical 01 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF NEV02 Permanent magnet synchronous machine (PMSM) is the mainstream of traction motor of NEV, requiring high efficiency, high torque, high reliability, compact volume, and etc. Non-oriented electrical steel series in Baosteel could meet the requirements from all kinds of high performance motors with features of low iron loss at mid and high frequency, high induction density and high strength.

3 Low loss series: low iron loss, high strength; High efficiency series: low iron loss, high induction; High efficiency-Higher strength series: excellent overall performance in loss, induction, and strength; Super induction series: high induction density to satisfy the needs for high torque and compact design of motors; High strength series: high strength for high speed rotor of high speed Product Tree of Non-oriented Electrical Steels for Traction Motors of NEV B35AV1700 B35AV1800 B35AV1900 B35AV2000B35AV210030 WGP1500 30 WGP1600 30 WGP1700 30 WGP1800B25 AHV1300MB35 AHS500B35 AHS450B30 APV1500B27 APV1400B35 APV1700B35 AHS550B27 AHV1300M35 WGP1700 35 WGP1800 35 WGP1900 35 WGP210020 WTGH1300 20 WTGH1500 27 WGPH1500 27 WGPH1800 B20AV1200 B20AV1300 B25AV1300 B27AV1400B30AV150020 WTG1300 20 WTG1500 27 WGP1400 27 WGP1500B20 AHV1200 B20 AHV1300 B27 AHV1400 B30 AHV1500 35 WGPH170035 WGPH1900 30 WGPH150030 WGPH1800 B35 AHV1700B35 AHV1900 High efficiency-high strengthHigh efficiencySuper inductionHigh strengthLow lossB35 APV1900 NON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV Properties of NOES for Traction motors of

4 Magnetic and Mechanical Properties Baoshan base AV Low loss AV series TypeMagnetic polarization(T)Grade B20AV1200B20AV1300B25AV1300B27AV1400B30A V1500B35AV1700B35AV1800B35AV1900B35AV200 0B35AV2100B20 AHV1200B20 AHV1300B27 AHV1400B30 AHV1500B35 AHV1700B35 AHV1900B25 AHV1300MB27 AHV1300MB27 APV1400B30 APV1500B35 APV1700B35 APV1900 AHV High efficiencyAHV seriesHigh efficiency-Higher strength AHV-M series APV High inductionAPV series AHV-M Density(g/cm3)Guarantee value Guarantee value Typical valueTypical value Typical value Core loss(W/kg)Core loss(W/kg) Typical Yield strength(MPa) J P 5000 High strength series TypeMagnetic polarization(T)Grade B35 AHS500 AHS Density(g/cm3)Guarantee value Guarantee valueGuarantee value Typical valueTypical value Typical value Core loss(W/kg) strength AHS seriesYield strength(MPa) J 500003 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF WGPH High induction WGPH series WGP Low loss WGP series J TypeMagnetic polarization(T)Grade20 WTG130020 WTG150027 WGP140027 WGP150030 WGP150030 WGP160030 WGP170030 WGP180035 WGP170035 WGP180035 WGP190035 WGP210020 WTGH130020 WTGH150027 WGPH150027 WGPH180030 WGPH150030 WGPH180035 WGPH170035 WGPH1900 Density(g/cm3)Guarantee value Guarantee value Typical value Typical value PCore loss(W/kg) PCore loss(W/kg) Typical Qingshan base 5000 Typical valueYield strength(MPa) Note.

5 The typical values are not for ELECTRICAL STEELS for Traction Motor of NEV Coating Properties (10 ) 15mm 5% 50 C 95% 14 180 C ( 6 ATF + ) 504hr 5 % 120A Th-W 100kg/cm2 DIN IEC 60404-12 Above are test data under certain condition in laboratory repre-senting typical properties of coating but not guarantee valuesNote: inter-lamination resistance (10 head, toal area ) STD11, F15mm round sample, clearance 5% of thick-ness, with stamping oil 50 C, 95% humidity,14 days In mixed liquid ( METALUB atf dexron (VI)+ water) at 180 C for 504hr: no bubble, now-inkle, nopeeling off, and quality difference<5% Protective Ar gas; welding current 120A; F Th-W electrode; welding torch interval ; pressure 100kg/cm2 DIN IEC 60404-1205 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF NEV065 of Non-oriented Electrical Steel for Traction Motor of NEVT otal Solutions Electrical SteelDatabaseElectrical Steel Lamination Technical SupportMagnetic Simulation PlatformPrototype Iron Core Build &Test PlatformA A Covering all Baosteel grades, including the magnetic, mechanical and coating properties of the cutting machine, and wire-electrode cutting machine for prototype core making.

6 Iron loss tester, motor testing platform Analysis of motor performance ( , efficiency, torque) with simulation softwareManufacturing problem solvingsolutions accumulated for reference guidance to quick trouble shooting in punching, laminating, welding, assembling processCBDEVI EVI Capability BuildingBCDNON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV An updating and complete database of non-oriented electrical steel for traction motor of NEV provides our customers a strong support with data of mechanical properties, magnetic properties under normal and special working conditions. Data could be in format of performance index or original test curves points ac-cording to customers Complete Material Database SupportMagnetic simulation for motor design DC &AC magnetization curves AC magnetization curves under special waveforms Stress analysis in rotorYield strength, tensile strength, fatigue strength, elastic modulusSafety design Changes in mechanical property with temperature Changes in magnetic performance with temperature Cooling system design Heat coefficient, expansion coefficient Typical magnetic properties Other physical properties Tensile strength Expansion coefficient20Hz~10kHz 20Hz~10kHz AC Core loss Curves Yield strength Heat coefficient Elongation ( )Fatigue strength(ambient temperature)

7 Elastic modulus Number of bends Magnetization Curves20Hz~10kHz (-40 C~150 C)20~10kHz Magnetization Curves at various temperatures (-40 C~150 C) (-40 C~250 C)Mechanical properties at various temperatures (-40 C~250 C) Non-oriented Electrical Steel Database for NEV AC iron loss curves under special waveform 20Hz~10kHz ~100kA/m J-P J-H H-v With complete material properties test platform, Baosteel could provide customers with magnetic properties data at any fre-quency between 20Hz and 10kHz and magnetic flux density up to 100kA/m, the measurement of B-P, B-H and B- and other forms of magnetic properties curves, to fully make use of the ma-terial properties to the greatest Magnetic Properties Test Platform07 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF Magnetic Property Curves of Typical GradesB25 AHV1300M B25 AHV1300M iron loss curvesCore loss P (W/kg)Magnetic Polarization J (T)Exciting force H (A/m)Magnetic Polarization J (T)

8 B25 AHV1300M B25 AHV1300M AC magnetization curvesNON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV Core loss P (W/kg)Magnetic Polarization J (T)Exciting force H (A/m)Magnetic Polarization J (T)30 WGP1500 30 WGP1500 iron loss curves30 WGP1500 30 WGP1500 AC magnetization curves09 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF NEV10 DC magnetization Mechanical Property Curves of Typical ProductB30 AHV1500 B30 AHV1500 strain-stress curve at ambient temperature Exciting force H (A/m) Exciting force H (A/m) Exciting force H (A/m)Strain(%)Magnetic Polarization J (T)Magnetic Polarization J (T)Magnetic Polarization J (T)Stress (MPa)Permeability (mH/m)Permeability (mH/m)Permeability (mH/m)NON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV B30 AHV1500 B30 AHV1500 yield strengths and tensile strengths at various Magnetic Property Curves Under Special ConditionB30 AHV1500 B30 AHV1500 magnetic properties along various directionsTemperature ( C)Strength (MPa)Core Loss P10/400 (W/Kg)Magnetic Polarization J50 (T)11 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF NEV12B30 AHV1500 B30 AHV1500 iron loss under various stress along rolling directionB30 AHV1500 B30 AHV1500 AC magnetization curves under various stress along rolling directionMagnetic Polarization J (T)Magnetic Polarization J (T) Core Loss P (W/Kg) Exciting force H (A/m)

9 NON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV B30 AHV1500 B30 AHV1500 iron loss curves under various temperaturesB30 AHV1500 B30 AHV1500 AC magnetization curves under various temperaturesMagnetic Polarization J (T)Magnetic Polarization J (T) Core Loss P (W/Kg) Magnetic Polarization J (T)13 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF NEV1435 WGP1800 35 WGP1800 iron loss curves under various processes35 WGP1800 35 WGP1800 AC magnetization curves under various processesMagnetic Polarization J (T)Magnetic Polarization J (T) Core Loss P (W/Kg) Exciting force H (A/m)NON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV Magnetic path analysis for material selection Motor efficiency cloud map analysis for material selection; Stress distribution analysis for safety Simulation Analysis CapabilityTorque (Nm )Speed(k rpm)Initial Global Optimization With Mechanical loss15 NON-ORIENTED ELECTRICAL STEELS FOR TRACTION MOTOR OF Punching And Lamination Process Support Lamination factors Good quality of punching and lamina-tion process is the prerequisite to the stable excellent traction motor performance.

10 Mechanical properties of material Difference in thickness in lateral direction Shape & Size tolerance Slitting factors Properties of circle shear material Gap & overlap of circl eshear Punching factors Assembling factors Material factors Welding process Riveting process Bonding process Magnitude of interference between stator and shell Air gap between rotor and stator Die material Gap of die Punching process Punching speed lubircation Stator winding Turning of stator Coiling tension stator Flatness of steel strip BurrNON-ORIENTED ELECTRICAL STEELS for Traction Motor of NEV Prototype Iron Core Build & Test PlatformTechnical service platform for electrical steel application technology: prototype iron core cutting and testing.