Non-oriented (CRNGO) silicon steel is an isotropic electrical steel for motors, generators and transformers, supplied by GNEE STEEL in thin cold-rolled gauges. The listed 50HW600 / 50HW800 / 50HW1000 grades show maximum iron loss around 4.2–7.5 W/kg with magnetic induction near 1.67–1.74 T and stacking factor about 97.5%. Note the page title says 0.65 mm while the data table shows 0.5 mm nominal thickness - confirm the exact gauge with GNEE STEEL.
Non-Oriented CRNGO Silicon Steel 50HW
Non-oriented electrical steel, also called CRNGO (cold-rolled non-grain-oriented silicon steel), is a low-carbon ferrosilicon alloy used where magnetic properties must be similar in all directions. GNEE STEEL supplies non-oriented silicon steel in thin cold-rolled gauges for motors, generators and small transformers. The material typically contains silicon in the range of roughly 0.8%–4.8%; adding silicon raises electrical resistivity and permeability while lowering coercivity, core loss and magnetic aging, which is exactly what rotating electrical machines need to run efficiently.
non grain oriented silicon steel
Unlike grain-oriented steel, which is optimized along one rolling direction, non-oriented steel has randomly distributed grains after deformation and annealing, so its magnetic behavior is nearly isotropic. That makes it the correct choice for stator and rotor laminations, where the magnetic field rotates with the machine rather than staying fixed. The steel is delivered as tightly rolled coil or slit strip, then punched or laser-cut into laminations and stacked to form the core. Stacking factor - how much of the stack is actual steel versus insulation gaps - directly affects core performance.
Specifications
| Product | Non-oriented cold-rolled silicon steel (CRNGO) |
| Grades listed | 50HW600, 50HW800, 50HW1000 |
| Standard (confirm) | China system shown; align to GB/T 2521 or EN 10106 equivalent with GNEE STEEL |
| Nominal thickness (note) | Data table shows 0.5 mm; page title states 0.65 mm - confirm exact gauge with GNEE STEEL |
| Theoretical density | 7.75–7.85 g/cm³ (by grade) |
| Max iron loss (typical) | 50HW600 ≈ 4.20 W/kg; 50HW800 ≈ 5.80 W/kg; 50HW1000 ≈ 7.50 W/kg (confirm test condition with GNEE STEEL) |
| Min magnetic induction | 1.67–1.74 T (by grade) |
| Min bending number | 12–15 (by grade) |
| Min stacking factor | ≈97.5% |
| Silicon content | Approximately 0.8%–4.8% (typical for the family) |
Applications
Non-oriented silicon steel is the iron core material for a wide range of rotating and static electrical equipment. The largest volumes go into the stators and rotors of AC motors (small fan motors up to industrial drives), generators, pumps and compressors, plus the cores of distribution transformers, reactors and inductors. Its isotropic magnetic behavior keeps losses predictable as the field rotates, while the thin gauge reduces eddy-current loss at higher frequencies. For high-efficiency motor designs, select a grade with lower iron loss (e.g., the 50HW600 end of the range); for cost-sensitive or lower-duty parts, a higher-loss grade may be acceptable. Final grade selection should follow the machine design and standard, confirmed with GNEE STEEL.
Procurement & Ordering
When ordering, specify the grade (50HW600/800/1000 or equivalent), thickness, width (coil or slit strip), insulation coating class and packing. GNEE STEEL exports electrical steel with Mill Test Certificates and can arrange third-party inspection. Incoterms FOB, CIF, CFR and EXW are supported, with shipping arranged through the company's freight agents. Because silicon steel is supplied in coil form and often slit to width, provide your lamination dimensions so GNEE STEEL can quote the right coil width and minimize offcut. Lead time and minimum tonnage are confirmed per specification.
FAQ
Q: What does 50HW600 mean?
A: In the China grade system, "50" denotes nominal thickness near 0.50 mm, "W" full-process non-oriented, and "600" the maximum iron-loss figure. Confirm the exact coding and standard with GNEE STEEL.
Q: Is non-oriented the same as grain-oriented steel?
A: No. Non-oriented has similar magnetic properties in all directions for rotating machines; grain-oriented is optimized along the rolling direction for transformers.
Q: How is iron loss affected by frequency?
A: Loss rises with frequency and flux density; the page lists both 50 Hz and 60 Hz values, so select per your supply frequency and confirm the test condition with GNEE STEEL.
Q: What is stacking factor?
A: It is the fraction of a core stack that is actual steel versus insulation/air; higher is better. The listed value is about 97.5%.
Q: Which grade should I choose?
A: Lower iron-loss grades (50HW600) for efficiency-critical motors; higher-loss grades for cost-sensitive use. GNEE STEEL can help match grade to design.
Q: Do you provide MTC?
A: Yes, Mill Test Certificates are supplied; request third-party inspection if required.
GNEE
GNEE STEEL
Since 2008, Gnee has provided quality steel products to more than 600 customers in more than 70 countries around the world. We have established long-term cooperative relationships with dozens of factories in China to ensure that our products are manufactured using high-quality materials and in sync with various international standards, with an annual export volume of more than 80,000 tons. The current main products are: shipbuilding steel plate, wear resistant steel plate, corten steel plate, pressure vessel steel plate, alloy steel plate, low alloy steel plate and so on. Gnee Steel Group is committed to becoming the world's most internationally competitive supply chain group, meeting the different needs of different customers, and truly realizing: One Stop Service Selection Easier.
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