Tel: +86-183-6744-7977 E-mail: info@ei-jr.com
English
- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
Views: 0 Author: Site Editor Publish Time: 2026-03-18 Origin: Site
Performance Indicator | Oriented Silicon Steel (GO) | Non-Oriented Silicon Steel (NGO) | Application Tip |
Iron Loss (P1.5/50, W/kg) | 1.1-1.55 W/kg （common product） | 3.2-7 W/kg （common grade） | Lower loss for high-efficiency transformers |
Magnetic Permeability (μ, H/m) | 18000-48000 H/m (up to 6 times that of non-oriented silicon steel) | 3000-8000 H/m (based on IEC60404, GB/T 3655 standards and industrial test data) | High permeability for power transformers |
Thickness (mm) | 0.23-0.35 mm | 0.35-0.50 mm | Thinner for lower iron loss |
Silicon Content (%) | 2.9-3.3% | 1.5-3.0% | Higher silicon for lower loss but poorer ductility |
Cost (relative value) | More than 2 times | 1.0 | Balanced with performance requirements |
Highly aligned crystal structure (grain orientation parallel to rolling direction), featuring high magnetic permeability (18000-48000 H/m, up to 6 times that of non-oriented silicon steel) and iron loss (P1.7/50: 1.1-1.55 W/kg for common products).
It is mainly used in high-efficiency power transformers, distribution transformers, and high-precision EI silicon steel laminations. Although its cost can reach more than 2 times that of non-oriented silicon steel, it can reduce transformer iron loss by 30-50%, ensuring superior performance for long-term continuous operation. The magnetic permeability ratio of oriented to non-oriented silicon steel can reach 6:1, which is a key feature of oriented silicon steel.
Random crystal orientation, with balanced magnetic properties in all directions. Its iron loss (P1.5/50: 3.2-7 W/kg for common grade) and magnetic permeability (3000-8000 H/m, based on IEC60404, GB/T 3655 standards and industrial test data) are moderate, but it has lower cost, better ductility, and easier processing.
It is widely used in toroidal cores, general-purpose EI laminations, motor cores, and other products, suitable for cost-sensitive projects with no strict requirements on iron loss. Common non-oriented silicon steel grades in industrial applications have stable magnetic properties and wide adaptability.
Based on the above data, the selection principle is as follows:
① Choose oriented silicon steel for high-efficiency, low-loss transformers (e.g., power transformers with efficiency level 1-2) and high-precision EI laminations;
② Choose non-oriented silicon steel for cost-saving, balanced-performance applications (e.g., toroidal cores, general-purpose EI laminations, small and medium-sized motors).
The choice between oriented and non-oriented silicon steel depends on customer’s performance requirements, cost budget, and application scenarios. Our factory provides custom EI silicon steel laminations and toroidal cores, covering common grades of oriented (0.23/0.27/0.30 mm) and non-oriented (0.35/0.50 mm) silicon steel to meet global demand for different scenarios.
☞ ➤Contact Us
