Carbide for Oil Industry
Carbide Sleeves
Large carbide sleeves with drilled hole patterns including 176 hole and 82 hole designs
Product Detail
Carbide Tubes
Tungsten Carbide Tubes and Bushes
Ground bore and outside diameter for pump sleeves guide bushes and flow parts
- Concentric walls. Bore and outside diameter ground together so the wall thickness stays even.
- No galling. Carbide against a hardened shaft avoids the galling that seizes steel bushes.
- Manufacturable design. Wall thickness and length are reviewed at drawing stage so the part survives grinding.
Product Overview
Overview
Tungsten carbide tubes and bushes are used where a bore has to keep its size against abrasive flow or against a hardened sliding shaft. Bore and outside diameter are ground on the same setup which is what keeps the wall concentric on a thin walled part.
Application Scenarios
- Pump shaft sleeves and guide bushes
- Nozzle bodies and flow restrictors
- Drilling bushes in downhole assemblies
Problems It Solves
- Bores open up under abrasive flow and clearances go out of specification
- Steel bushes gall against hardened shafts and seize
- Thin wall carbide parts crack when they are ground without support
Key Benefits
Why Customers Specify This Product
Concentric walls
Bore and outside diameter ground together so the wall thickness stays even.
No galling
Carbide against a hardened shaft avoids the galling that seizes steel bushes.
Manufacturable design
Wall thickness and length are reviewed at drawing stage so the part survives grinding.
Same route as our sleeves
Produced with the same material and process as our oil field sleeve production.
Technical Features
Materials
Technical Features
- Ground bore and outside diameter
- Thread inside or outside on request for nozzle bodies
- Length and wall to drawing
- Sinter-HIP densified body
Material and Grade
Cemented tungsten carbide consisting of tungsten carbide grain in a cobalt binder. Binder content and grain size are chosen against your load case because hardness and toughness move in opposite directions. Our engineers propose a direction and explain the trade off rather than quoting a grade code you cannot verify. See the grade guide.
Specifications
Specification Sheet
| Product form | Carbide tube bush or sleeve |
|---|---|
| Material | Cemented tungsten carbide (WC with cobalt binder) |
| Densification | Sinter-HIP |
| Bore | Ground to drawing tolerance |
| Outside diameter | Ground |
| Threads | Inside or outside thread on request |
Dimensions tolerances and grade are confirmed on the approved drawing before production. Figures that are not listed here were not published by the factory and will be confirmed with your enquiry.
How It Is Made
Manufacturing Process and Quality Control
Every part follows the same production route. Critical dimensions are agreed on the drawing so both sides measure the same thing.
1. Powder PreparationBall milling and spray drying to a uniform granulate
2. PressingBlank pressed with machining stock where required
3. Sinter-HIPDensified under isostatic pressure to reduce porosity
4. MachiningGrinding EDM and lapping to the approved drawing
5. InspectionCritical dimensions checked before packing
6. Export PackingProtected packing for air or sea freight
Certifications
Certificate copies and material documentation are supplied on request with your order. We do not publish certificate claims that we cannot show you so ask for exactly what your import or QA process requires and we will confirm what can be provided.
Customization Options
- Dimensions to your drawing
- Grade direction matched to the load case
- Surface condition as sintered ground or lapped
- Part marking on request
- Packing adapted to air or sea freight
Compared With Other Options
- Versus hardened tool steel — far better wear resistance but more brittle so mounting matters
- Versus other carbide in this range — see the related products below for the closest alternative form
- Versus a fabricated assembly — a one piece carbide part removes joints and alignment work
Use Guide
Fitting and Service Guide
- Check the seat is clean and undamaged before fitting. Uneven support is the most common cause of early failure.
- Use even pressure. Never drive a carbide part into a holder by impact.
- Follow the interference fit agreed on the drawing rather than adjusting the carbide.
- Store parts separated and supported. Carbide chips carbide when parts knock together.
- Log the run time achieved so replacement becomes planned maintenance.
Photographs of carbide tubes and bushes and related parts from our own production.
Related
All Product Categories
Related Products
Related Reading
Related Application Case and Guide
Petroleum and Gas
Sleeves seats valve pairs and flow parts
Read MoreCarbide Sleeve With 176 Holes
A carbide sleeve of OD 268 mm x ID 228.6 mm x H 160 mm carrying 176 holes produced for oil field service equip…
Read MoreTungsten Carbide Grade Guide
How cobalt content and grain size move hardness against toughness and how to describe your application so a su…
Read More
FAQ
Carbide Tubes and Bushes FAQ
What is the thinnest wall you can produce?
Wall thickness is reviewed together with diameter and length before we quote because thin walls are the limiting factor in grinding. Send the drawing and we will comment.
Can you supply threaded carbide nozzle bodies?
Threads inside and outside are produced for nozzle applications such as spraying and shot blasting. Confirm the thread form on the drawing.
Do you supply tubes as blanks?
Yes. Tubes can be supplied as blanks with grinding stock or finish ground on bore and outside diameter.
Next Step
Request a Quotation for Carbide Tubes and Bushes
Send the drawing quantity and application. If you only have a worn sample send photos with measured dimensions and we will prepare a drawing for your approval.
Send a drawing or a sample photo on WhatsApp or by email. Files are reviewed by our production engineers, not by a form.