Pure Iron Rivet for Furnace Lining
High Purity, High Temperature Stability for Anchor Fixing in Industrial Furnaces
Product Overview
Industrial furnace linings are subjected to extreme thermal cycling, mechanical vibration, and corrosive atmospheres. Traditional carbon steel rivets or anchors can oxidize rapidly at high temperatures, react with refractory components, or lose strength – leading to lining collapse.
Our pure iron rivets (also known as refractory anchors, lining studs, or furnace rivets) overcome these issues:
High purity iron (Fe ≥ 99.9%) contains no alloying elements that could contaminate refractory bricks or cause embrittlement.
Ultra‑low carbon minimizes scaling and decarburization at elevated temperatures (up to 900°C continuously).
Excellent ductility allows the rivet to absorb thermal expansion stresses without cracking.
As the actual manufacturer, we produce these rivets by cold heading or machining from hot‑rolled pure iron wire/bar, then de‑burr and package for easy installation. We offer factory‑direct pricing and custom head styles (flat, countersunk, round, or T‑head) to match your anchoring system.
Key Features
| Feature | Benefit for Furnace Lining |
|---|---|
| High purity (≥99.9%) | No reactive alloys – prevents brick discoloration or slagging |
| Ultra‑low carbon (≤0.003%) | Resists scaling and decarburization up to 900°C |
| Low sulfur & phosphorus | Reduces hot shortness and cracking during thermal cycling |
| Good ductility | Absorbs thermal expansion mismatch between lining and shell |
| Customizable dimensions | Diameter 3–16 mm, length 20–200 mm, various head types |
| Oxide‑resistant surface | As‑formed or lightly oiled – no loose scale to contaminate lining |
| Factory direct | Cost‑effective alternative to imported anchors, short lead times |
Comparison: Pure Iron vs. Carbon Steel vs. Stainless Steel for Furnace Anchors
| Property | Pure Iron (our rivet) | Carbon Steel (e.g., Q235) | Stainless Steel (304/310) |
|---|---|---|---|
| Carbon content | ≤0.003% | 0.12‑0.20% | 0.08% |
| Scaling resistance up to 850°C | Good | Poor (spalls heavily) | Excellent |
| Reaction with refractories | None | May cause brick staining | Possible chrome migration |
| Cost | Medium | Low | High |
| Ductility at high temp | Excellent | Good (becomes brittle) | Moderate |
| Best for | Clean, high‑purity linings | Low‑cost, non‑critical | High temp >900°C, corrosive |
Packaging & Delivery
Standard packaging: Small rivets in polybags + cardboard boxes; large rivets in steel‑strapped bundles or wooden crates.
Rust protection: Light oil coating + VCI paper + moisture‑proof outer.
Lead time: 7‑10 days for standard sizes (3‑10 mm diameter, 20‑100 mm length); 12‑15 days for custom designs.
Shipping: Sea freight (LCL/FCL), air freight, or express courier.
Factory location: Hebei Province, China – direct loading, quality audit welcome.
Frequently Asked Questions
Q: Why use pure iron instead of stainless steel for furnace rivets?
A: Pure iron is chemically inert with most refractory oxides, while stainless steel can react with silica or alumina in bricks at high temperatures, causing discoloration and weakening of the lining. Pure iron also has better ductility to absorb thermal expansion.
Q: How do I prevent rust before installation?
A: Our rivets are lightly oiled and packed with VCI paper. Store in a dry environment. For long term storage, vacuum packaging is available.
Contact Us
Request factory‑direct pricing for pure iron rivets – high purity, high temperature stability, custom sizes for furnace lining anchoring.
Your trusted China manufacturer of refractory anchoring solutions.
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