High-Quality KCF Alloy Rods for Resistance Welding | Insulated KCF Material for Guide Pins & Sleeves
Product Overview
KCF Alloy is a special heat-treated metal material with a high-quality insulating skin generated on its surface. As a direct manufacturer, Bloom provides KCF rods that serve as the ideal raw material for making welding guide pins, locating pins, and insulating sleeves.
Unlike ceramic pins, KCF material offers superior toughness and resistance to thermal shock, ensuring it won't crack under the high-pressure and high-temperature environments of projection nut welding.
Technical Specifications
| Property |
Specification |
| Material Code |
KCF Alloy (Cr20, Al3, Fe Bal) |
| Insulation Layer |
8μm to 30μm (Stable Surface Layer) |
| Hardness |
≥ 200 HV (After special heat treatment) |
| Tensile Strength |
≥ 539 N/mm² |
| Yield Strength |
≥ 392 N/mm² |
| Elongation |
≥ 15% |
| Diameter Range |
Φ10mm to Φ45mm (Standard & Custom) |
| Standard Length |
1000mm (or customized sizes) |
Core Advantages
- Stable Insulation Skin: Bloom's unique heat treatment process creates a deep, black insulating layer that won't peel or flake off during heavy-duty welding.
- Superior Toughness: Compared to brittle ceramics, KCF material has the mechanical strength of an alloy, making it resistant to impact and cracking.
- High Wear Resistance: Designed for high-volume production lines, our KCF rods offer a long service life, reducing downtime and replacement costs.
- Excellent Machinability: Our KCF rods can be easily machined into various shapes (M4, M5, M6, M8, M10, M12 pins) according to your specific blueprints.
Application Scope
- Automotive Manufacturing: Widely used in Body-in-White (BIW) lines for projection nut and stud welding.
- Resistance Welding: Perfect for making guide pins, bushings, and sleeves that require electrical insulation.
- Brazing Jigs: High-temperature resistant components for specialized jig systems.
Customization & Service
At Bloom, we don't just sell rods. We understand the precision required in the automotive industry.
- Custom Shapes: We can provide both raw rods and finished KCF pins based on your drawings.
- Strict Quality Control: Every batch is tested for insulation resistance and surface hardness.
- Direct Factory Price: Save costs by sourcing directly from the production line.