Can Zhongfu manufacture tungsten carbide parts from my drawing?

Yes. Custom carbide parts are our core business. Send a 2D/3D drawing with tolerances, surface finish and working conditions; our engineers recommend a grade and can optimize the powder formulation to match your wear, impact or corrosion requirements.

Which cemented carbide grades do you supply?

We supply standard WC-Co grades from YG6 to YG20, nano and ultrafine grain rod grades for end mills and drills, and nickel-bonded non-magnetic grades. Low-cobalt grades favor hardness and wear resistance; higher-cobalt grades favor toughness and impact resistance.

What makes non-magnetic carbide different from standard carbide?

Standard tungsten carbide uses a cobalt binder, which is ferromagnetic. Non-magnetic carbide replaces cobalt with a nickel-based binder, so parts can be used near magnetic sensors, in MWD/LWD downhole tools, magnetic molding dies and corrosive media.

How fast will I receive a technical reply?

Our engineering team replies to every inquiry within 8 hours, including grade suggestions and manufacturability comments on your drawing.

Which markets do you export tungsten carbide products to?

Our carbide products are exported to more than 20 countries, including the USA, Canada, Mexico, Australia and Germany.

China Oil And Gas Parts Factory & Factories

Next-Generation Tungsten Carbide & Superalloy Solutions for Downhole Drilling, Subsea Completion, MWD/LWD Telemetry, and High-Pressure Severe Cavitation Service.

Top-Tier Drilling & Machining Hardware

Engineered Carbide Parts & Tooling Inserts

Precision sintered, HIP consolidated, and micro-finished components tailored for downhole exploration, pipe machining, and severe wear environments.

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Global Industrial Landscape

Macro Solutions in Harsh Hydrocarbon Recovery

Navigating high pressure, high temperature (HPHT), corrosive sulfide stress cracking, and extreme hydraulic abrasive flows with specialized metallurgical engineering.

Total Cost of Ownership Optimization

In ultra-deep drilling and subsea extraction, premature component degradation triggers non-productive time (NPT) costing upwards of $250,000 per day. As an authoritative China oil and gas parts factory, Jiangxi Zhongfu delivers Hot Isostatic Pressing (HIP) cemented carbides and nickel-bonded non-magnetic matrices that extend mean time between failures (MTBF) by 300% to 500% compared to standard API alloy steels.

Corrosion-Erosion Synergy Control

Supercritical CO2, moist hydrogen sulfide (H2S), and chloride-laden formation brine accelerate degradation mechanisms. Standard cobalt-bonded hardmetals undergo binder leaching under acidic conditions. Our factory engineers custom nickel-chromium and tungsten-titanium carbide formulations to neutralize galvanic acceleration, passing ASTM G32 and ASTM G65 Class A erosion tests with industry-leading low loss rates.

End-to-End Vertical Supply Assurance

Located in Jiangxi, the global epicentre of tungsten resource reserves, our facility bypasses intermediate trading bottlenecks. From virgin ammonium paratungstate (APT) raw powder refinement to nano-grain wet milling, vacuum sinter-HIP cycles, and sub-micron 5-axis CNC diamond profile grinding, we ensure complete trace-to-mine lot tracking for high-reliability drilling and wellhead completion infrastructure.

24+

Years Metallurgical Experience

5,000m²

Advanced Production Floor

80+

National Patents Granted

<8h

Rapid Engineering Feedback

Compliance & Quality Architecture

Global Traceability, API & NACE Conformity

Delivering certified parts backed by thorough non-destructive examination (NDE), dimensional metrology, and metallographic validation.

NACE MR0175 / ISO 15156 Sour Gas Validation

Components exposed directly to wet sour service, including choke valve trim, stem seats, and downhole flow restrictors, are formulated and heat-treated to eliminate susceptibility to hydrogen-induced stress cracking (HIC) and sulfide stress corrosion cracking (SSCC), conforming strictly with NACE MR0175 material hardness criteria.

API Specification Alignment

Our manufacturing and quality assurance frameworks align seamlessly with API Spec 6A (Wellhead and Christmas Tree Equipment) and API Spec 16C (Choke and Kill Systems). Each manufactured batch undergoes full material traceability with EN 10204 Type 3.1 chemical analysis certificates and physical test logs.

Full Microstructural & Metrology Inspection

Equipped with advanced optical and scanning electron microscopy, ultrasonic non-destructive testing (UT), and coordinate measuring machines (CMM), we certify zero internal voids, grain boundary uniformity, magnetic saturation (Cobalt-magnetism), and sub-micron dimensional adherence across every production tier.

Downhole & Surface Deployment

Mission-Critical Hydrocarbon Flow Applications

From exploratory rotary drilling in the Permian Basin to high-pressure deepwater subsea trees across the North Sea and Gulf of Mexico.

Measurement & Logging While Drilling (MWD/LWD)

Directional drilling tools rely heavily on non-magnetic drill collars and pulsers. Standard cobalt matrices create electromagnetic interference. Zhongfu produces custom nickel-bonded, totally non-magnetic carbide wear sleeves, turbine impellers, and poppet-orifice pulser assemblies with relative magnetic permeability μr < 1.005, preserving sensor fidelity.

Hydraulic Fracturing & Slurry Pumping

High-volume slickwater frac operations involve pumping millions of pounds of 100-mesh sand proppant at velocities exceeding 30 m/s. Zhongfu manufactures extreme-wear tungsten carbide valve seats, plunge rings, and flow check inserts designed to prevent localized washouts, fluid tracking, and pressure drops across the manifold.

Wellhead Choke Valves & Flow Trims

Subsea and surface choke trims face severe hydrodynamic throttling, gas flashing, and acoustic cavitation. Our engineered solid tungsten carbide external sleeve and cage trims withstand high differential pressures (up to 15,000 PSI) with zero micro-cracking, preserving linear fluid control across the production lifecycle.

Material Science Matrix

Tungsten Carbide Grade Selection for Energy OEMs

Match downhole dynamic operational envelopes to our proprietary binder formulations, grain morphologies, and mechanical thresholds.

Carbide Grade	Binder Type & %	Density (g/cm³)	Hardness (HRA)	Transverse Rupture (MPa)	Target Hydrocarbon Application
ZF-OG06	6% Cobalt	14.95	91.5	2,300	Nozzles, orifice plates, sliding bearings with minimal shock loading.
ZF-OG10	10% Cobalt	14.50	89.0	2,900	Choke valve stems, flow trim cages, downhole casing centralizers.
ZF-NM08 (Non-Mag)	8% Nickel-Chrome	14.70	89.8	2,500	MWD/LWD telemetry pulser components, sour gas (H2S) trim sets.
ZF-OG15 (Tough)	15% Cobalt	14.05	86.8	3,400	Severe percussive drilling bits, jarring tools, casing scrapers.
ZF-UF08 (Fine)	8% Ultra-Fine Co	14.65	92.8	3,800	High-velocity sand slurry chokes, rotary steerable valve pads.

R&D Strategic Horizons

Next-Gen Materials: Geothermal, CCUS & Hydrogen

Adapting energy exploration hardware to meet future requirements in ultra-high temperature drilling and carbon capture infrastructure.

Deep Geothermal Drilling Resistance (>350°C)

As drilling depths exceed 6,000 meters into supercritical geothermal reservoirs, standard tools degrade rapidly. We are pioneering cobalt-free refractory binders incorporating molybdenum and tantalum carbide phases that retain room-temperature hardness up to 800°C without plastic deformation or thermal fatigue spalling.

Dense-Phase CO2 & Hydrogen Storage Valves

Carbon Capture, Utilization, and Storage (CCUS) projects inject high-pressure supercritical CO2, creating severe Joule-Thomson refrigeration cycles and acid formation. We engineer sub-micron poreless matrices with passive oxide layers that eliminate intergranular degradation under phase-changing fluids.

Additive Manufacturing & Near-Net Shapes

To reduce machining lead times for intricate internal hydraulic geometries, our factory is integrating Binder Jet 3D Printing with consolidated Sinter-HIP processing. This allows complex hydraulic swirler vanes and helical choke passages to be fabricated with virtually zero diamond-grinding waste.

Engineered Downhole & Surface Spares

Specialized Heavy-Duty Oil & Gas Parts

Explore round billets, nozzle seats, cutter blanks, and non-magnetic components built to standard and custom customer prints.

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Procurement & Technical FAQ

Frequently Asked Questions by Global Energy Engineers

Addressing material selections, drawing tolerances, QA audits, and export logistics for international buyers.

What specific qualities differentiate downhole-grade tungsten carbide from standard metalworking grades?

Downhole drilling and completion environments subject components to simultaneous shock impact, corrosive fluids (H2S, CO2, chlorides), and severe abrasion. Metalworking grades focus primarily on high hot-hardness and edge retention for chip shearing. Oil and gas grades, however, require optimized grain morphology (typically medium-to-coarse or bi-modal distributions) alongside Hot Isostatic Pressing (HIP) to eliminate micro-porosity (A02, B00 porosity ratings). Moreover, binder metallurgy is tailored: nickel-chromium binders replace cobalt for sour gas (NACE MR0175) applications, preventing rapid matrix leaching and catastrophic brittle fracturing.

How does your China factory handle tight dimensional tolerances on custom downhole components?

Our 5,000 m² facility features CNC surface grinders, centerless grinding lines, wire electrical discharge machining (WEDM), and high-precision diamond profile cylindrical grinders. We routinely produce custom components to tolerances within ±0.002 mm (±0.00008 inches) with surface finishes as fine as Ra 0.05 μm (mirror finish for mechanical face seals and flow seats). All dimensions are verified via automated Coordinate Measuring Machines (CMM) and optical profile projectors.

Why are non-magnetic tungsten carbide parts required in directional drilling (MWD/LWD)?

Measurement-While-Drilling (MWD) and Logging-While-Drilling (LWD) steerable tools utilize sensitive magnetic fluxgate magnetometers to determine toolface orientation and wellbore trajectory relative to the Earth's magnetic field. Traditional tungsten carbide contains cobalt, a ferromagnetic element that distorts telemetry signals. Zhongfu's proprietary nickel-bonded alloys achieve a relative magnetic permeability (μr) of less than 1.005, making them functionally invisible to navigation sensors while providing unmatched erosion resistance against high-pressure drilling mud.

What documentation and testing reports accompany each international consignment?

Every production lot ships with comprehensive quality dossiers, including EN 10204 Type 3.1 Material Test Reports (MTR), raw powder chemical assay documentation, physical test results (density, hardness HRA, transverse rupture strength), microstructure metallographic photographs (showing pore distribution and carbide grain distribution), dimensional inspection sheets, and non-destructive ultrasonic testing (UT) validation certificates upon request.

What is the typical prototype-to-production turnaround time for new customer drawings?

Our engineering desk provides initial design-for-manufacturability (DFM) reviews, grade recommendations, and formal quotation packages within 8 hours. Once 2D/3D CAD models (STEP, IGES, DXF) are approved, custom tooling dies and initial sintered prototypes are completed in 10 to 15 working days. Full production orders typically ship within 3 to 4 weeks, with express courier air shipping (DHL/FedEx/Air Freight) providing delivery to major global energy hubs (Houston, Calgary, Aberdeen, Dubai, Singapore) in 3 to 5 days.