Our Pure Iron Rivets?
Unmatched Material Purity
Unlike standard steel rivets, our pure iron rivets are made from DT4 series electromagnetic iron with ultra-low carbon content. This composition delivers:
Superior magnetic permeability for applications involving magnetic circuits
Excellent ductility for cold or hot heading without cracking
Consistent mechanical properties batch after batch
Custom Sizes for Any Industrial Connection
We understand that standard sizes don't always fit unique designs. That's why we offer full dimensional customization:
Diameter range: From 1mm to 50mm (custom diameters available)
Length options: Any length based on your specifications
Head styles: Flat head (standard), countersunk, round head, or custom profiles
Tolerance control: Strict adherence to ISO, DIN, or GB/T standards
Certified Quality and Traceability
Every order includes comprehensive documentation:
Mill Test Certificate (MTC) verifying chemical composition
Magnetic property analysis for electromagnetic applications
Dimensional inspection reports upon request
Batch traceability ensuring consistent performance
Technical Specifications
| Property | Value |
|---|---|
| Material | DT4, DT4A, DT4C, DT4E (Pure Iron) |
| Carbon Content | ≤0.025% |
| Coercivity | ≤80 A/m (annealed) |
| Tensile Strength | 250-350 MPa (depending on processing) |
| Elongation | ≥30% |
| Hardness | 70-110 HB (as forged) |
Surface Treatment Options
To suit your environmental requirements, we offer various surface finishes:
Zinc Plating: Blue/white or color passivation for corrosion resistance
Phosphating: Improves lubrication and serves as paint base
Oiling: Temporary protection during storage and transport
Black Oxide: Decorative finish with mild corrosion protection
No Treatment: For applications requiring pure iron surface characteristics
Work With Us – A Pure Iron Manufacturer
Factory-Direct Advantages
Complete process control: From raw material decoiling to final punching
Competitive pricing: No middlemen, direct manufacturer pricing
Flexible MOQ: Small trial orders accepted for qualification
Fast turnaround: Extensive raw material inventory ensures quick production
Applications
Our custom pure iron rivets are widely used in:
Electromagnetic equipment: Relays, solenoids, magnetic cores
Automotive assemblies: Brake systems, engine components
Industrial machinery: Heavy equipment assembly, structural connections
Electrical engineering: Grounding connections, busbar assemblies
General fabrication: Wherever reliable metal joining is required
Frequently Asked Questions
Q: How do I order custom size pure iron rivets?
A: Simply provide us with your drawing, sketch, or detailed dimensions (diameter, length, head type, and any special requirements). We'll confirm feasibility and provide a quotation within 24-48 hours.
Q: What is the typical lead time for custom orders?
A: For standard sizes and quantities, lead time is 7-10 working days. For large custom orders, typically 15-20 working days after sample approval.
Q: Can you provide samples before bulk production?
A: Yes, we offer sample production for qualification. Sample cost and shipping are negotiable based on complexity and quantity.
Q: How do I ensure the material meets my magnetic property requirements?
A: We provide a Mill Test Certificate with each batch showing chemical composition and magnetic properties. For critical applications, we can perform additional magnetic testing upon request.
Q: What is the difference between pure iron and mild steel rivets?
A: Pure iron has significantly lower carbon content (<0.025% vs 0.15-0.25% for mild steel), resulting in better magnetic permeability, higher ductility, and softer magnetic properties. It's ideal for electromagnetic applications where mild steel would cause magnetic hysteresis.
Q: Do you offer annealed rivets for maximum softness?
A: Yes, we can supply rivets in the annealed condition for maximum ductility and lowest coercivity. Please specify if you require annealed state.
Q: What packaging do you use for export?
A: Standard export packaging includes cartons on pallets, with options for wooden crates for large orders. Anti-rust protection (VCI paper, oil coating) is applied based on your preference.
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