Table of Contents
Market Insight: Crngo Material in Power Industry

Market Analysis: Sourcing High-Quality Silicon Steel (Electrical Steel)
CRGO vs CRNGO: Application-Specific Demand
| Parameter | CRGO (Grain Oriented) | CRNGO (Non-Grain Oriented) |
|---|---|---|
| Magnetic Anisotropy | High (directional) | Isotropic (uniform) |
| Typical Thickness | 0.23mm – 0.30mm | 0.35mm – 0.50mm |
| Core Loss (W/kg @ 1.5T, 50Hz) | 0.8 – 1.2 | 1.5 – 2.5 |
| Primary Applications | Power Transformers (HV/EHV) | Motors, Generators, Small Transformers |
CRGO is engineered for high-efficiency power transformers, leveraging directional grain structure to minimize core losses by 25–30% compared to CRNGO. CRNGO’s isotropic properties suit rotating machinery where magnetic fields change direction, such as industrial motors. Both grades demand precise manufacturing control to suppress hysteresis and eddy current losses—critical for grid stability and operational efficiency.
Material Quality: The Efficiency Imperative
Core losses constitute 70–80% of transformer no-load losses. Substandard electrical steel directly escalates energy waste and lifetime costs. For instance, a 0.1 W/kg reduction in core loss translates to $500,000+ in energy savings over a 30-year transformer lifespan. Luoyang Xinzhaohe enforces strict silicon content (3.0–3.5%) and grain refinement protocols, ensuring compliance with IEC 60404-8-7 standards. Our ISO 9001-certified production eliminates variability in magnetic properties, directly enhancing system efficiency and reducing CO₂ emissions.
Luoyang Xinzhaohe: Precision Supply Chain Partner
As a China-based manufacturer with 20+ years of expertise, we deliver CRGO and CRNGO grades optimized for global power applications. Our factory-direct model bypasses intermediaries, providing 15–20% cost savings versus European competitors while maintaining superior consistency. Advanced annealing processes and Epstein frame testing (IEC 60404-2) guarantee optimal magnetic performance for 50Hz/60Hz systems. We serve top-tier transformer OEMs and motor manufacturers across Asia, Europe, and the Americas—proving that high-performance electrical steel need not come at a premium price.
Technical Specs: Crngo Material Parameters

Critical Technical Specifications for CRNGO Material
Grade-Specific Performance Metrics
Our CRNGO materials are engineered for optimal transformer efficiency with precise control over critical electromagnetic parameters. Core loss values (measured per IEC 60404-3 using Epstein frame) directly impact energy dissipation and thermal performance. Magnetic flux density (B50) determines core saturation characteristics, enabling compact transformer designs. Lamination flatness tolerance of ±0.02mm ensures stacking factors >97%, minimizing no-load losses. Insulation coatings (C4/C5 types) provide dielectric strength (>200V) and thermal stability in transformer oil environments. Key specifications across common grades are detailed below:
| Grade | Core Loss (W/kg @1.5T/50Hz) | Magnetic Flux Density (B50, T) | Lamination Flatness (mm) | Insulation Coating Type |
|---|---|---|---|---|
| 35ZH100 | ≤1.00 | ≥1.78 | ±0.02 | C4 (2.0–2.5 g/m²) |
| 30ZH120 | ≤1.20 | ≥1.76 | ±0.02 | C5 (2.0–2.5 g/m²) |
| 23ZH100 | ≤0.90 | ≥1.80 | ±0.02 | C4 (2.0–2.5 g/m²) |
Compliance & Quality Assurance
All products strictly conform to IEC 60404-8-7 and ASTM A677 standards. Our manufacturing process includes:
Continuous annealing under nitrogen-hydrogen atmosphere for controlled grain growth
In-line Epstein frame testing for core loss validation at production speed
Laser interferometry for lamination flatness verification (±0.02mm tolerance)
XRF coating thickness monitoring and tape adhesion tests per IEC 60404-8-7
Full traceability via batch-specific material certifications and digital quality logs
All processes are governed by ISO 9001:2015-certified Statistical Process Control (SPC) systems, with annual third-party audits by TÜV and SGS. As a factory-direct supplier with 20+ years of expertise, Luoyang Xinzhaohe delivers OEM-grade CRNGO materials at 15–20% lower total cost of ownership versus European/Japanese competitors, ensuring consistent electromagnetic performance for high-efficiency transformer cores.
Factory Tour: Manufacturing Crngo Material

Manufacturing Process & Quality Control
Precision Manufacturing Process
Our CRNGO production follows a tightly controlled sequence optimized for transformer-grade performance:
Slitting: High-precision slitting machines with tension control (±0.05N) eliminate edge burrs and ensure width consistency (±0.1mm).
Annealing: Continuous annealing line maintains ±2°C uniformity in N₂/H₂ atmosphere, achieving optimal grain orientation and minimizing core loss.
Insulation Coating: C4/S2-type coatings applied via roll-coating with 99.5% uniformity, ensuring dielectric strength >2.5kV/mm.
Precision Cutting: CNC-guided shearing achieves ±0.05mm dimensional accuracy for laminations, critical for core stacking efficiency.
Rigorous Quality Control Protocols
Every batch undergoes multi-stage validation against international standards:
Tensile Testing: Per ASTM A343, yield strength consistency (CV ≤2%) exceeds industry averages (CV ≤5%).
Dimensional Checks: Thickness tolerance ±0.01mm (vs. ±0.02mm market standard), width ±0.1mm.
Surface Inspection: Automated optical scanning detects micro-defects (e.g., scratches, inclusions) at 0.01mm resolution.
Coating Adhesion: 100% pass rate in ASTM D3359 tape tests, eliminating delamination risks during core assembly.
Magnetic Validation: Core loss (P1.5/50) verified per IEC 60404-2, ensuring ≤0.85W/kg for 0.23mm grade.
Quality Benchmark Comparison
| Parameter | Luoyang Xinzhaohe | Typical Market | Advantage |
|---|---|---|---|
| Thickness Tolerance | ±0.01mm | ±0.02mm | 50% tighter control |
| Tensile Strength CV | ≤2% | ≤5% | 60% higher uniformity |
| Coating Adhesion Pass | 100% | 90% | Zero delamination risk |
| Core Loss Consistency | ±3% | ±5% | 40% better efficiency stability |
By integrating Industry 4.0 monitoring systems and 20+ years of metallurgical expertise, we deliver global-class CRNGO at 15–20% lower cost than Western brands. Our process ensures predictable transformer performance—reducing energy losses while extending equipment lifespan. For projects demanding reliability without premium pricing, our factory-direct solution is engineered for success.
Packaging & Global Logistics

Export Packaging & Logistics Protocol for CRNGO Materials
Precision Packaging Structure
Xinzhaohe’s CRNGO packaging adheres to ISO 18578 and ASTM A680 standards, ensuring structural integrity during global transit. Our multi-component system is engineered for zero material degradation:
| Component | Specification | Purpose |
|---|---|---|
| Wooden Pallets | 1000×1200mm, 25mm thickness, ISPM-15 certified | Prevents ground moisture ingress and stabilizes coil loads |
| Moisture-Proof Film | 200μm PE + 50g/m² desiccant packets | Blocks salt spray, humidity, and condensation |
| Steel Strapping | 19mm width, 0.5mm thickness, 1500kg tension | Eliminates lateral movement during vibration |
| Wooden Cases (Optional) | 22mm plywood, corner reinforcements | Enhanced protection for high-value or long-duration shipments |
Moisture Protection Standards
CRNGO’s susceptibility to oxidation demands rigorous humidity control. All packages undergo pre-shipment testing to maintain internal relative humidity <30% RH. Integrated humidity indicator cards provide visual validation, while desiccant packets absorb residual moisture. This protocol exceeds industry benchmarks, ensuring zero corrosion during 30+ day sea voyages.
Sea Freight Execution Protocol
Shipments are loaded into 40ft High Cube containers with optimized coil stacking patterns (max 25 tons/container). Each container is sealed with tamper-evident security seals and equipped with real-time GPS trackers. Pre-shipment inspections verify door gasket integrity, internal temperature (<25°C), and humidity levels. Our logistics partners guarantee 98.7% on-time delivery to global ports (2019–2023 data), with route optimization for monsoon-prone regions.
Quality Assurance & Global Compliance
Xinzhaohe’s packaging and shipping processes comply with ISO 9001/14001 and destination-specific customs regulations. With 20+ years exporting to 50+ countries, we eliminate hidden costs through:
Standardized packaging that reduces container space waste by 12%
Direct factory-to-port coordination, avoiding third-party handling fees
15–20% lower total landed cost vs. global brands without compromising material integrity
Trust Xinzhaohe for CRNGO delivery that meets engineering-grade reliability at competitive pricing.
Sourcing from Luoyang Xinzhaohe

Why Partner with Luoyang Xinzhaohe Aluminum CO., Ltd.?
With over 20 years of dedicated experience in electrical steel production, Luoyang Xinzhaohe specializes in high-performance CRGO materials. Our technical team possesses deep expertise in optimizing magnetic properties, including core loss (P1.5/50), magnetic induction (B50), and permeability, ensuring compliance with international standards such as IEC 60404-8-7. We serve global transformer manufacturers with consistent, application-specific solutions tailored to meet stringent performance requirements. Our production facilities in Luoyang, China, are equipped with advanced rolling mills and annealing lines to produce CRGO grades with precise grain orientation, critical for minimizing hysteresis losses in transformer cores.
Unmatched Factory-Direct Cost Efficiency
As a direct manufacturer, we eliminate intermediary markups, offering competitive pricing without compromising quality. Our integrated production chain—from raw material sourcing to final inspection—ensures cost-effective solutions. Clients typically realize 15-25% savings compared to global brands while maintaining equivalent or superior magnetic performance metrics. By leveraging local raw material suppliers and optimized logistics, we maintain cost advantages while ensuring reliable delivery schedules. This vertical integration minimizes overhead and delivers transparent pricing structures with no hidden fees.
Rigorous Quality Assurance & Compliance
All products undergo rigorous testing per ISO 9001:2015 protocols. Our in-house labs measure critical parameters including core loss (P1.5/50), magnetic induction (B50), and thickness tolerance (±0.01mm). We adhere strictly to IEC 60404-8-7 and ASTM A677 standards, providing full material traceability and certification for every batch. Each shipment includes a Material Test Certificate (MTC) with detailed test results, ensuring transformers operate at peak efficiency with minimal energy loss.
| Criteria | Luoyang Xinzhaohe | Global Brands |
|---|---|---|
| Cost Efficiency | 15-25% lower pricing | Premium pricing (20-30% higher) |
| Technical Consistency | ±1% core loss tolerance across batches | Comparable specs, higher cost |
| Lead Time | 15-20 days for standard orders | 30-45 days (international logistics) |
| Certifications | ISO 9001, IEC 60404-8-7, ASTM A677 | Same standards, but higher cost |
For precise technical specifications and a competitive quote tailored to your project requirements, contact our engineering team directly at cathy@transformerstrip.com. We provide prompt responses, material selection guidance, and on-time delivery commitments to optimize your transformer manufacturing process.
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