Primary process: Powder Metallurgy. The full route, materials, tolerances and design tips for a valve guide, with an indicative cost.
Powder MetallurgyPrimary process
PowderFamily
8Route steps
+/-0.05mmTypical tol.
A valve guide is primarily made by Powder Metallurgy. Powder metallurgy presses metal powder into a die to a green shape, then sinters it below melting so the particles bond into a solid part. Below is the full route to make a valve guide, the materials it suits, the tolerances to expect and the main design points. The route is free, from the finder.
Step by step
How a valve guide is made
The usual route, raw material to finished part. The amber step is where the valve guide gets its basic shape.
Powder and tooling
Blend the metal powder and make the compaction die or mould.
Powder Metallurgy
Press the powder in the die to a green valve guide.
Tooling High (die) Tolerance ±0.05 to 0.3mm Lead 10 to 20 weeks
Sintering
Fuse the particles below melting point so the valve guide reaches full strength.
Sizing
Coin or re-press for final dimensions.
Secondary machining
Machine any features the die could not form.
Tooling None Tolerance ±0.125mm, to ±0.025mm Lead 1 to 10 days
Heat treatment
Harden or steam-treat to the needed properties.
Tooling n/a Tolerance can distort Lead days
Finish
Plate or impregnate for corrosion resistance or sealing.
Tooling Low Tolerance adds microns Lead days
Inspection
Check density, dimensions and hardness.
Need the real cost for a valve guide? The free route above is yours. Unlock the full dossier to quote and source it.
Where this process typically lands. Tighter is possible with extra operations like grinding, at higher cost.
Materials
Materials for a valve guide
Grade
Why it suits this
Iron/steel powder (FC-0208)
Cheap, strong enough
Bronze (self-lubricating)
Porous bearing
Stainless 316L powder
Corrosion
Design
Design tips
General pointers. The full design-for-manufacturing list for a valve guide is in the dossier.
Undercuts / side holes.Design for axial pressing.
Thin walls.Respect PM minimums.
Cost
What a valve guide should cost
Small net-shape metal parts (gears, bushings) at volume; die-driven, excellent material utilisation.
PER-PART COST vs VOLUME
Per-part cost drops as volume spreads tooling and setup over more parts. The exact figures for a valve guide at your volume, in your currency, are in the dossier.
MODEL EST.
$0.5 to 1.1per part at 1,000 off
A rough ballpark only. The dossier gives should-cost at your exact volume and currency, with the full breakdown.
GET THE FULL DOSSIER
Everything you need to quote and source it
The free route above is yours. To actually put a number on a valve guide and buy it well:
Should-cost at your exact volume in 12 currencies, with the material, processing, tooling and overhead breakdown
Who to source from, typical MOQ and lead time, and the exact RFQ checklist to send
A quote checker that tells you if a supplier quote is fair, and the red flags to watch
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A valve guide is primarily made by powder metallurgy. The route is: Powder and tooling; Powder Metallurgy; Sintering; Sizing; Secondary machining; Heat treatment; Finish; Inspection.
What does a valve guide cost?
It depends on size, tolerance and volume. As a rough ballpark it starts around $0.5 to 1.1 per part at 1,000 off and falls with quantity. The dossier gives should-cost at your exact volume and currency. A model estimate, not a quote.
What material is a valve guide made from?
Common choices are Iron/steel powder (FC-0208); Bronze (self-lubricating); Stainless 316L powder.
What is the main process for a valve guide?
Powder Metallurgy. Small, complex net-shape parts in high volume, like gears, bushings and carbide tooling.
See the exact route and should-cost for your part
The free finder maps your part to its process and full route. Pro adds should-cost at your volume, sourcing and an RFQ draft.
