Shanxi Jurun Technology: China's Premier Pure Iron Supplier
In procurement at Pacific Transformer Industries, Marcus Chen's team was investigating fresh pure iron vendors that would supply to their high-efficiency core production within their manufacturing plants when they ran into known frustrations. While three undertook to offer the DT4C material, they offered only raw coils-none would allow slitting to its intended width of 25mm. None provided the annealing needed to maximize magnetic properties, nor could guarantee good inter-batch consistency vitally important for advanced automated winders. So, this trailed a predicament whereby Marcus's team could find itself managing four vendors when the requirement should be a streamlined chain.Find more info now.
Then Shanxi Jurun found its potential clients. One source supplies the entire range of DT grades. They perform accurate in-house slitting. As an addition to the hydrogen annealing, the magnetic properties of the given product have to be checked. The trail of quality records goes from raw material up till checking coil by coil. As a result, lead times have been shortened from eight weeks to four weeks. The inventory plasticity improved up to 60%. And the consistent core loss figure improved 4%.
This is the caliber difference between simply delivering material shipment and allowing the engineering of a solution.
This guide will introduce you to Shanxi Jurun Technology Co., Ltd., what we can do, and how we bring to the market seamless pure iron supplies from the leading industrial material market of China.
About Shanxi Jurun Technology

Company Overview
The Shanxi Jurun Technology Co., Ltd. has been serving the clients all over the globe and maintaining its position as a leading pure iron supplier in China. This enterprise forms a unique set of integrated material manufacturing, precision engineering, and quality assurance capabilities. Alongside raw iron processing and product optimization, we serve mainly electromagnetic equipment manufacturers, transformer producers, electric motor OEMs, and research institutions.
Our endeavor carries a simple message: Provide highly engineered solutions in pure iron that deliver the highest magnetic performance and increase the simplicity of clients' supply chains. To this end, three primary capabilities define us:
Material Supply: All standard forms of full DT series (DT3-DT9) grade coverage in products
Integrated Processing: Cutting/slitting, annealing, and customized fabrication under a single quality system
Application Engineering: The technical personnel support the choice of material for desired electromagnetic performance.
Strategic Location: Taiyuan, China's Iron Production Hub
Local positioning is a critical factor in the provision of industrial raw materials. Taiyuan has certain unique locational advantages to offer due to its setting in Shanxi Province:
1. Access to Raw Materials: The mountains in the eastern part of the province hold some of the highest-quality iron ore reserves found in China. Being close to mature steel production infrastructure guarantees stable feedstock supplies and competitive basic material pricing. Furthermore, it allows low environmental and health risks.
2. Industrial Ecosystem: No less important is the dense supporting industries linked to iron and steel, comprising equipment suppliers, technical services, and logistics providers, as well as a skilled workforce. Interestingly, the existing ecosystem provides room for swift problem-solving and production flexibility.
3. Logistics: Taiyuan forms one railway and highway connections through Henan province to Tianjin and Qingdao ports for import/export. Overland travel will take all major Chinese industrial centers about 48 hours.
Global is where cost competitiveness exerts its power regardless of quality or reliability; do only prepare for packing. So ebullient and resolute in bringing the same chains of supply that have so marvellously served domestic industry in China for its now dues serving global export.
Core Capabilities

Pure Iron Material Supply
As a specialized electromagnetic pure iron supplier, we maintain comprehensive inventory across the full DT-series specification:
| Grade | Max Coercivity (Hc) | Min Permeability (μmax) | Typical Applications |
|---|---|---|---|
| DT3 | ≤72 A/m | ≥7.5 mH/m | General magnetic applications |
| DT4 | ≤48 A/m | ≥10.0 mH/m | Transformers, motors |
| DT4A | ≤40 A/m | ≥12.0 mH/m | High-efficiency cores |
| DT4E | ≤36 A/m | ≥13.0 mH/m | Precision instruments |
| DT4C | ≤32 A/m | ≥15.0 mH/m | Premium electromagnetic devices |
| DT8 | ≤16 A/m | ≥20.0 mH/m | Ultra-high permeability applications |
| DT9 | ≤10 A/m | ≥25.0 mH/m | Research, specialized instruments |
Product Forms Available:
Cold Rolled Coils:Thickness from 0.3 to 3.0mm; and width from 20 to 1250mm.
Hot Rolled Bars:From 6mm to 200mm diameter, according to clients' preference
Wire and Rods: Diameters from 0.5 to 20mm supplied as long length coils
Tubing:From an OD of 10mm up to 300mm, wall thickness varies between 2mm and 25mm Seamless and welded.
Forgings:Custom-designed shapes per drawing; varying in size.
Cut-to-Length: Sheets, blanks, and precision-cut pieces
All material comply with the Chinese National Standard GB/T6983-2008 for electromagnetic pure iron. Certificates of Conformance are provided along with every shipment.
Integrated Processing Services
One of the things that set Shanxi Jurun apart from regular wrought iron suppliers is the fact that all processing is done in-house - customers receive finished components rather than raw materials.
Precision Slitting:
Width Tolerance: ±0.1mm
Edge Quality: Free from burrs, free from camber
Camber: ≤1.5 mm/m
Strip Width Range: 5-400mm from master coil
Applications: Transformer lamination strips, motor core manufacturing
Precision Cutting:
Shearing: ±0.5mm in length, 0.3mm/m in squareness
Saw Cutting: Bars and rods cut to specific lengths
Laser/Plasma: Sheet and plate cutting with the most complicated geometries
Applications: Stator and rotor lamination applications, structural components
Cold Drawing:
Wire Diameter Reduction with Intermediate Annealing
Surface Finish: Ra ≤1.6μm
Dimensional Tolerance: h9 std./h7 on request
Applications: Relay cores, Solenoid plunger, Precision rod
Annealing and Heat Treatment:
Hydrogen atmosphere annealing for maximum magnetic softness
Vacuum annealing for complex ring geometries
Temperature range: 600–950 °C
Quench and temper:
Testing for coercivity and permeability
Applications: Post-machining tempering, stress relief, property optimization.
Forging and forming:
Hot-press forging into shaped deposits
Enhancement of mechanical properties through working
Applications: Structural magnetic components, flux return paths
Quality Assurance Systems
Quality is a no-compromise game when it comes to electromagnetic materials. Inconsistent magnetic properties lead to variations in fields, losses of efficiency, and system failures. Our quality system ensures that each batch meets the specifications.
Incoming Material Verification:
Chemical composition analysis (carbon, silicon, manganese, sulphur, phosphorous)
Inclusion rating as per ASTM E45
Dimensional inspection and review of their certification
Supplier audit, and raw material sources qualification
In-process Monitoring:
Plot width and edge-quality checks
Annealing temperature profiling
Condition of surface inspection
Dimensional conformity at each processing step
Final properties regarding magnetic testing:
Coercivity measurement according to GB/T 3656
Determination of maximum permeability (μmax)
Hysteresis loop analysis
Test data processing and batch certifications.
Each coil, bar, or component has an identification linked to the heat number, the processing history, and the results of the tests. Full documentation will come with the shipment.
Industries and Applications

Transformer and Power Equipment
For the operation of an electric transformer, the interested core materials should ensure minimal hysteresis and reliable magnetic properties within the range of temperature.
We offer the following services:
- Laminated strip sized to desired width for a stacked-core assembly
- Annealed coil with confirmed low coercivity is prepared for the toroidal cores
- Cutting to customer-defined profiles for specialized setups
Volume-production support is provided to corporate partners in the production of transformers for the power utility.
A significant transformer manufacturing and design company from Southeast Asia patronizes us significantly every year. DT4C slit strip is sourced mainly through an integrated program amidst upstream material providers at a usual rate of 200+ tons or more. The companies' coercivity-feature components can accelerate by as much as ±20 percent until 40%.
Electric Motors and Generators
The quality of the core materials is what affects motor efficiency. Our materials are applied to:
industrial motor motors, including stator and rotor laminations for high-efficiency designs,
automobile applications, with traction motor cores for electric cars,
generator applications, where stator cores are used in power generation equipment, and
servo motor applications, where precision laminations are required in motion control systems.
However properly annealed DT4C has a high permeability, which reduces the magnetizing current load. This means that a properly annealed DT4C could improve directly the efficiency rating of the motor.
Electromagnetic Components
Every precision electromagnetic device requires materials with predictable and repeatable magnetic behaviors:
Relays and solenoids: High-inertia stripes for faster decisions.
Solenoid valves: Bar and tube annealing ensures constant effective tension force.
Magnetic separators: Mineral processing uses high-field saturation materials.
Sensors: Low-remanence materials to detect well-precise fields.
Among others, the capabilities of our programs to create pure iron ensure near-net-shape components, inputting the constraint on working material and eliminating further machining costs for the customer.
Scientific and Research Applications
Laboratories and equipment companies specializing in various fields often require low-volume, specially engineered materials with exact specifications:
Physics: Beamtube conductors, mu-metal shields
MRI devices: Shielding apparatus; magnetic core
Aerospace: Specialty magnetic systems
Metrology: Or magnetic properties samples; calibration material
We supply small-run deliveries (from as low as 50 kg) up to bulk-production standards.
Why Choose Shanxi Jurun

vs. Trading Companies
Trading companies offer convenience but lack technical depth and quality control. When you source through Shanxi Jurun:
| Factor | Trading Company | Shanxi Jurun |
|---|---|---|
| Technical Support | Limited product knowledge | Application engineering available |
| Quality Control | Third-party, inconsistent | Direct oversight, batch testing |
| Processing Integration | None (resale only) | Full in-house capabilities |
| Problem Resolution | Delayed (multiple parties) | Immediate, direct communication |
| Documentation | Variable quality | Complete traceability |
vs. General Steel Suppliers
Many steel suppliers are listing "pure iron" as an item in their catalogs while not having a special area of focus. The differences are quite important:
Material Focus: We specialize solely in high pure magnetic materials, ensuring that all processes are oriented for an optimized electromagnetic performance.
Magnetic Testing: It is rare for general suppliers to actually test for the magnetic behavior of their materials and perform coercivity and permeability tests on standard practice.
Application Knowledge: It is the knowledge of how material properties affect the efficiency of a transformer, the responsiveness of a relay, and the performance of a motor that we bring to the table. To such a general supplier, the focus would only be the mechanical specs.
Grade Range: We keep a comprehensive inventory and processing procedures for the complete DT-series (DT-3 through DT-9), with some general supplier stocking a mere few popular grades.
vs. Single-Product Manufacturers
There are businesses involved in coil form only or in bar form only. Whenever you are looking for application across several forms or stages of processing also, this scenario will only complicate procurement.
Shanxi Jurun has iron processing potential. That is integrated and consolidated under one roof:
Every order placed gets you products with different forms
One quality system allows for segregation of materials consistently
One person available for all your contact needs in technical terms
A coordinated delivery unit will reduce your inventory maintenance costs.
Global Supply and Logistics

Export Capabilities
Shanxi Jurun Technology has an active export market into Asia, Europe, North America, and elsewhere. Having profiles on GoldSupplier platform effectively presents guaranteed information of the company and dramatically simplifies inquiry management.
Documentation Provided:
Commercial Invoice and Packaging List
Certificate of Origin
Mill Test Certificates with details on Chemical and Magnetic Properties
GB/T 6983-2008 Compliance Certificate
Material Safety Data Sheets (MSDS)
Export Customs Declaration
Packing Options:
Standard Export Seaworthy Packing
VCI (Volatile Corrosion Inhibitor) wrapping in ocean freight
Moisture barrier bags with desiccant
Custom Crating for delicate machined components
Palletized for fork truck handling
Shipping Coordination:
FOB Tianjin or Qingdao Port
The option for CIF/CIP terms
Airfreight for urgent requirements
Courier services for samples and documentation
Service Standards
You know very well how much the failure might cost your production schedules. The terms of the service on offer from Euroenberg:
Quotation Response: Quotations shall be made within initial 24–48 hours unless complex and therefore requiring 72-hour engineering review.
Production Lead Times:
Standard stock items at 1–2 weeks of delivery
Custom slit/cut 3–4 weeks
Annealing additional 1–2 weeks
Complex fabrication at 4–6 weeks of delivery
Order Tracking: Communication updates on material allocation, processing completion, and shipment on a routine basis; container tracking for ocean freight challenges as well.
After-Sales Support: Technical counsel regarding material performance inquiries; documentation is arranged for import clearance; quality issues rectified through batch investigation and corrective action.
Contact and Next Steps

Requesting a Quotation
Customers should supply the following information in order to obtain a quotation:
Material quality: DT4, DT4C, or any other reasonable grade
Product form: Coil, round bar, wire, tube, or any custom application
Size: Thickness, width, diameter, and length or height if relevant
Quantity: Number of pieces per order and an estimate
Process requirements: Slitting, annealing, cutting, etc.
Application: Transformer, motor, relay, or other (it assists in providing recommendations)
Freight cost: to estimate delivery cost
Our technician reviews each inquiry carefully to ensure that the specification is accurate and suitable for a particular application.
Engineering Consultation
An array of technical feedback can be offered aside from the supply of materials:
1. Material Selection: Matching grade and specification to the application requirement
2. Processing Optimization: Recommending slitting patterns, annealing cycles, or various fabrication approaches
3. Design Review: Reviewing drawings for manufacturability and material efficiency
4. Problem solving: Investigation of magnetic performance issues and solution recommendation.
Frequently Asked Questions
What are the various grade types of pure iron marketed by Shanxi Jurun?
We offer the whole DT-series grades: DT3, DT4, DT4A, DT4E, DT4C, DT8, and DT9. Our most sought-after grade is DT4C, designed particularly for high-efficient electromagnetic applications, showing exceptionally low coercivity ≤32 A/m as well as high relative permeability ≥15 mH/m.
Does Shanxi Jurun do custom processing?
Integrated processing is naturally our core differentiator. From precision slitting, cutting, annealing, drawing, and machining services, we can serve a wide variety of shaped raw materials of any given thickness.
How do I ensure the quality of the material?
Every package carries test certificates with elemental analyses or magnetic strengths at coercion, or at least the two are documented. These tests are performed with calibrated hysteresisgraph, using GB/T 3656 methods. Therefore every batch shipping implies traceback to both its raw material source and processing specification.
Does Shanxi Jurun export overseas?
Yes, we are actively exporting to Asian, European, North American, and other sectors. Certificates of origin; certificates of material; and customs declarations generally form part of our documents; writing ensures that the goods are packed for air or ocean cargo in compliance with destination regulations.
What items are subject to conflict provisions?
As per the Chinese National Standard, all poles composed of electromagnetically pure iron must comply with the GB/T 6983-2008 convention. This standard addresses the chemical make-up and magnetic properties of industrial pure iron and methods of testing. Equivalent international standards are ASTM A848 (US) and JIS C 2504 (Japan).
How long will lead times typically take?
They can vary depending on the product and setting in the factories: standard stock items are made available for shipment within 1-and-a-half weeks; custom slitting takes 3–4 weeks; annealing services add 1–2 weeks. Actual shipping time will be agreed upon together with your firm delivery date for production on the order confirmation. Milestone dates for production will be communicated to you after your order request is processed.
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