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WC-Co Cemented Sintered Carbide Welding Rod
Design and Construction — a VPOINT tungsten carbide composite hardfacing rod for oil drilling and mining wear protection. The specification and performance tables below list dims, duty and inspection points; the FAQ covers selection, use and service. ISO 9001 production, batch-verified, custom sizes from drawings.
Design and Construction
A WC-Co rod loaded with sintered carbide grit: sintered fragments carry their edge geometry through the braze window better than crushed fragments, whose micro-edges can round at heat.
How It Works
Sintered grit keeps its designed shape through the braze; the deposit retains the fragment edges that crushed grit loses at temperature.
Applications
Edge-critical hardfacing, cutting-tool skins, precision wear edges.
Field Cases
- Edge-critical skin: sintered grit kept the working edge geometry after braze.
- Cutting-tool line: the sintered route preserved edge sharpness.
- Precision wear edges: geometry retention became the selling spec.
Performance Data
| Metric | Value / Observation |
|---|---|
| Grit | Sintered WC-Co fragments |
| Edge retention | Better than crushed at braze heat |
| Deposit character | Edge geometry preserved |
| Matrix | Standard composite |
Suitable Materials
Edge-critical steel parts.
Material Comparison: Sintered Grit vs Crushed Grit Through the Braze
What each grit survives – typical industry data:
| Factor | Sintered Grit (this rod) | Crushed Grit |
|---|---|---|
| Edge geometry at heat | Sintered – designed shape holds | Crushed – micro-edges round |
| Best deposit | Edge-critical skins | Mass wear surfaces |
| Sharpness after braze | Retained | Reduced |
| Cost | Premium | Standard |
| Choice rule | Edge critical → sintered | Volume wear → crushed |
Delivery Scope
Rod in tube; grit spec included.
Why Choose VPOINT
Sintered grit for the edge-critical route.
Precision & Quality Control
Grit type and edge retention sampled per batch.
Specifications
Grit information:
| Item | Specification |
|---|---|
| Grit | Sintered WC-Co |
| Edge retention | At braze heat |
| Matrix | Standard composite |
| Spec | Grit sheet |
Frequently Asked Questions
Why sintered grit?
Sintered fragments keep their edge geometry through the braze heat – crushed edges round.
Edge-critical work?
The designed route.
Volume wear?
Crushed grit is the economy choice there.
Matrix?
Standard composite.
Grit spec?
Ships with the rod.
Related Search Terms
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＋Key words: tungsten carbide pellets, crushed tungsten carbide, carbide hardfacing, oil drilling hardfacing, drill tool wear protection, KY3 grade pellets, KY4 grade pellets, 90-91.5 HRA carbide, milling shoe hardfacing, grinding shoe hardfacing, stabilizer hardfacing, drill pipe protection, bucket teeth hardfacing, auger flight protection, mining wear parts, carbide composite rod, flux coated hardfacing rod, copper matrix rod, CuZnNi matrix, 70% tungsten carbide loading, hardfacing overlay, re-overlay restoration, tungsten carbide mesh sizes, tungsten carbide grit, snow plow blade protection, well service tools
Sources & standards: ISO 9001 quality management · UNSPSC commodity codes · eClass product classification
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