Why Tungspire
Four reasons procurement teams standardize on us
Full Industry Chain
The world's only full tungsten carbide industry chain group — powder metallurgy, blank pressing & sintering, and precision machining under one roof. Everything except the mine.
World-Leading Sphericity
Precision valve ball roundness that sets the global benchmark — the single biggest factor in metal-to-metal sealing and pump run life.
Proven in North America
80% of output exported to the USA & Canada. A Weatherford-qualified fixed supplier, with Tungspire parts running in projects across 126 countries.
API OEM Manufacturing
Custom manufacturing per API SPEC 11AX / 6A / 7 from your drawings or samples, with full material traceability and dimensional reports.
Product Lines
Five carbide product families, one qualified source
Valve Balls & Seats
No.1 worldwide in capacity, quality and margin — API 11AX valve balls up to Ø107.95 mm
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Bushings & Sleeves
No.2 in China — 3,000,000 pcs/year for electric submersible pumps (ESP)
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Custom Carbide Parts
22 grades, made to your drawing — from powder to finished precision part
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Cold Heading Dies
11 grades engineered for the fastener industry — longer die life, stable dimensions
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Plungers & Pump Parts
P21 / P22 / P23 plunger series + G11 / C21 / C17 / S11 / S13 pump parts — full API 11AX coverage
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Qualified & Trusted
Certifications and references that survive your audit
Certifications
Thailand API certification program launching 2026.
Reference Customer
Weatherford
Qualified fixed supplier of carbide valve balls & seats to one of the world's largest oilfield service companies.
Material Envelope
- WC 77–94% · Co/Ni 6–23%
- Hardness HRA 82–92.7
- TRS 1950–3500 N/mm²
- Density 9–14.95 g/cm³
Engineering Blog