50WW470, B50A470 CRNO Non-Oriented Silicon Steel Coil & Sheet | Cold Rolled Electrical Steel

50WW470, B50A470 CRNO Non-Oriented Silicon Steel Coil & Sheet | Cold Rolled Electrical Steel

  1. Omni-directional stable magnetic performance for rotating motor cores
  2. Low core loss P15/50 ≤4.70 W/kg, reduces motor energy consumption
  3. Excellent ductility & punching property for high-speed stamping
  4. Uniform inorganic insulation coating to suppress eddy current loss
  5. Cost balanced grade, widely applicable for general industrial motors
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Product Overview

50WW470 and B50A470 are 0.5mm cold rolled non-oriented silicon steel (CRNO), these two grades are fully equivalent with identical magnetic and mechanical properties.

This grade features consistent magnetic property in all directions, low iron loss and great stamping performance. The surface is coated with uniform inorganic insulating coating to separate laminations and reduce eddy current loss. It is the mainstream material for standard industrial three-phase asynchronous motors, fan and water pump motors.

We supply raw coils and cut-to-size sheets, longitudinal slitting and stamping blanking services are available. Magnetic test certificates and factory mill reports can be provided for quality inspection.

Cold Rolled Non-Oriented Silicon Steel (CRNO) Sheet

Chemical & Mechanical Property Snapshot

Grade Si (wt%) C (wt%) Mn (wt%) Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Core Loss P15/50 (W/kg)
50WW470 2.4–2.8 ≤0.005 0.2–0.5 ≥420 ≥250 ≥24 ≤4.70
B50A470 2.4–2.8 ≤0.005 0.2–0.5 ≥420 ≥250 ≥24 ≤4.70

Detailed Technical Specifications

Item Specification
Product Cold Rolled Non-Oriented Silicon Steel (CRNO) Sheet
Alternative Name Non-Grain Oriented Electrical Steel
Standards GB/T2521.1, IEC 60404, EN 10106, JIS C2552, ASTM A677
Thickness 0.50 mm
Applicable Grades 50WW470, B50A470
Raw Coil Width 1000 / 1200 / 1250 mm
Surface Treatment Uniform inorganic insulating coating
Magnetic Structure Non-oriented grain structure
Processing Options Longitudinal slitting, fixed-size shearing, stamping blanking
Processing Performance Good ductility and punching performance
Quality Documents Magnetic test certificates and factory mill reports
MOQ 5 Ton
Payment Terms T/T, L/C at Sight
Delivery Time 7–15 working days after receiving deposit
Package Waterproof paper + plastic film + wooden pallet, seaworthy export packing

Product Comparison Table

Comparison Item 50WW470 B50A470
Thickness 0.50 mm 0.50 mm
Core Loss P15/50 (W/kg) ≤4.70 ≤4.70
Silicon Content 2.4–2.8 wt% 2.4–2.8 wt%
Type Wuhan Iron & Steel CRNO Baoshan Iron & Steel CRNO
Typical Applications Industrial three-phase motors, fan & pump motor cores Industrial three-phase motors, fan & pump motor cores
Interchangeability ✅ Fully equivalent, can replace each other ✅Fully equivalent, can replace each other

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FAQs

50 stands for thickness 0.50mm, WW means non-oriented silicon steel, 470 refers to max core loss P15/50 ≤4.70 W/kg.

Yes. These two grades are fully equivalent in chemical composition, mechanical and magnetic properties, interchangeable for motor core production.

Mainly for three-phase asynchronous industrial motors, fan motors, water pump motors and general household appliance motors.

We can provide longitudinal slitting, fixed-size shearing and stamping blanking according to customer drawings.

Magnetic performance test certificates and factory mill test reports will be supplied with each shipment.

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Why choose us?

  • ISO, SGS, TÜV, WTRUST, Lloyd’s Register, and DNV certifications

  • Customizable sizes, grades, and surface finishes

  • Full material traceability and inspection reports

  • Responsive support and fast global delivery


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