Engineered with proprietary nickel-chromium solid solution binders providing relative magnetic permeability (µr) < 1.005 and outstanding corrosion resistance.
Strategic deployment of non-magnetic wear materials across the Valle de México manufacturing cluster, State of Mexico (Edoméx), and adjacent Bajío aerospace-automotive corridors.
Greater Mexico City and nearby Toluca host global Tier-1 automotive electronics suppliers. Non-magnetic tungsten carbide tooling eliminates magnetic hysteresis distortion during automated assembly of Hall-effect throttle sensors, ABS brake sensors, and EV rotor winding chucks.
The Cuautitlán and Tlalnepantla industrial zones are central nodes for medical technology fabrication. Non-magnetic carbide pins, fluid dispensing valves, and micro-punches prevent magnetic interference in MRI components, automated blood centrifuges, and sterile surgical tooling.
Headquartered in Mexico City, Mexico’s national energy entity PEMEX and specialized sub-contractors require non-magnetic MWD (Measurement While Drilling) directional drilling valve bushings, mud pulse transmitter pins, and logging tool casings free from geomagnetic deflection.
In conventional cemented tungsten carbide (WC-Co), the metallic binder is elemental cobalt. Cobalt exhibits strong ferromagnetism with a relative magnetic permeability (µr) typically ranging between 1.5 and 5.0, depending on saturation and grain structure. For industrial plants operating within Mexico City’s Vallejo, Iztapalapa, and Lerma industrial hubs, this intrinsic magnetism presents critical processing bottlenecks: ferromagnetic parts attract microscopic ferrous debris, foul high-speed stamping operations, distort electromagnetic measurement fields in automated test rigs, and fail abruptly in galvanic corrosive environments.
Jiangxi Zhongfu Cemented Carbide Co., Ltd. resolves this industrial challenge through proprietary vacuum induction metallurgy that substitutes ferromagnetic cobalt with austenitic Nickel-Chromium (Ni-Cr) or Nickel-Cobalt-free solid solution matrix binders. When stabilized at the sub-atomic lattice phase through precise Over-Pressure Sinter-HIP (Hot Isostatic Pressing) cycles at 30 MPa and 1,450°C, the nickel binder freezes into a face-centered cubic (FCC) austenitic state that remains fully non-magnetic even under cryogenic exposure and post-machining plastic deformation.
The manufacturing process at our Nanchang production facility controls carbon balance with extreme precision (narrow ±0.03% C range) to completely inhibit the formation of ferromagnetic η-phase (Co3W3C / Ni3W3C double carbides) and free graphite rosettes. By micro-alloying with trace quantities of Ruthenium (Ru), Vanadium Carbide (VC), and Chromium Carbide (Cr3C2), the average tungsten carbide grain diameter is pinned at 0.4 µm to 0.8 µm (ultra-fine / sub-micron tier). This fine grain dispersion guarantees exceptional edge retention and compressive yield strengths exceeding 4,200 MPa.
| Grade Designation | Binder Phase (wt%) | WC Mean Grain Size (µm) | Hardness (HRA / HV30) | Transverse Rupture Strength (TRS MPa) | Magnetic Permeability (µr) | Target Mexican Industrial Use |
|---|---|---|---|---|---|---|
| ZF-NM06 | 6.0% Ni-Cr Matrix | 0.6 Sub-micron | 92.4 / 1680 | 2,350 | < 1.002 | Precision wire bonding pins, SMD pick-up tools, Hall IC test fixtures |
| ZF-NM10 | 10.0% Ni-Cr-Mo Matrix | 0.8 Fine grain | 90.2 / 1490 | 2,800 | < 1.004 | High-speed progressive stamping dies for silicon steel laminations |
| ZF-NM15 | 15.0% Ni-Austenitic | 1.2 Medium | 87.8 / 1280 | 3,200 | < 1.005 | PEMEX MWD downhole pulse valves, impact cutters, marine pump shafts |
| Standard YG8 (Control) | 8.0% Co (Ferromagnetic) | 1.4 Medium | 89.5 / 1420 | 2,600 | > 2.500 Magnetic | Standard abrasive wear (Unsuitable for magnetic-sensitive operations) |
For precision mold and tool shops in Tlalnepantla and Naucalpan performing deionized water Electrical Discharge Machining (Wire EDM), standard cobalt-bonded carbide suffers from galvanic corrosion: cobalt binds anodically and dissolves into the dielectric fluid, leaving behind a brittle, porous, micro-cracked recasting layer up to 30 µm deep. Our proprietary nickel-bonded non-magnetic carbide exhibits zero chemical leaching during EDM wire erosion, eliminating the need for expensive secondary acid-cleaning processes and preserving micro-edge integrity down to Ra 0.05 µm mirror polish.
How Jiangxi Zhongfu’s 24 years of vertically integrated tungsten powder synthesis, automated sinter-HIP furnaces, and multi-modal logistics reduce total cost of ownership for Mexico City manufacturers.
Situated directly at the epicentre of China's world-leading tungsten mineral reserves, Zhongfu maintains direct control from ammonium paratungstate (APT) reduction to sub-micron tungsten carbide powder synthesis. This vertical integration shields Mexican buyers from global raw material price speculation and guarantees 100% virgin powder usage without recycled scrap contamination.
Our workshop houses multi-axis CNC surface grinding, centerless grinders (h6 rod tolerances), optical profile grinding (PG), and EDM wire cutting equipment. Every non-magnetic pin, nozzle, valve seat, or shear blade is inspected via computerized coordinate measuring machines (CMM) and digital metallographic microscopes before dispatch.
We operate optimized logistics pipelines to central Mexico: high-priority rapid prototypes and precision pin batches ship via air freight directly into Mexico City International Airport (AICM) or Felipe Ángeles International Airport (NLU) within 48 to 72 hours. Containerized bulk shipments clear through Port of Manzanillo or Lázaro Cárdenas with full DDP (Delivered Duty Paid) documentation support.
Specific use cases where replacing standard carbide with non-magnetic formulations delivers measurable uptime gains and eliminates signal noise.
Automotive stator/rotor stamping plants across the State of Mexico and Querétaro handle ultra-thin silicon steel coils. Conventional ferromagnetic punches magnetize the sheet stock, causing minute stamped laminations to stick together, jam feeding chutes, and dull punching punches prematurely. Zhongfu's ZF-NM10 non-magnetic punch blocks and die inserts ensure clean strip separation, zero residual magnetism, and punch stroke lifespans exceeding 25 million cycles between regrinds.
Electronic sensor assembly lines in Naucalpan and Cuautitlán test sensitive micro-fluxgate magnetometers and inductive position encoders. Structural locator pins or guide bushings fabricated from standard steel or standard carbide distort local magnetic flux lines by up to 18%, producing erroneous sensor calibrations. By integrating ZF-NM06 non-magnetic locating pins, sensor assembly accuracy reaches true sub-micron reproducibility with zero distortion of test fields.
With Mexico City upgrading municipal and commercial water measurement infrastructure to prevent fluid loss across the aquifer network, smart magnetic-drive and ultrasonic water meters require shafts and bearing bushings that operate for 15+ years submerged in mineral-heavy water. Zhongfu non-magnetic carbide rods (Ø1.5 mm to Ø6.0 mm) provide near-diamond hardness, resisting scaling and galvanic corrosion while allowing magnetic coupling signals to pass cleanly without eddy current drag.
Oilfield services operating along the Gulf of Mexico basin with engineering headquarters in CDMX utilize measurement-while-drilling (MWD) probe collars. Standard carbide components placed near navigational magnetometers induce compass heading errors. Non-magnetic carbide orifice sleeves, rotor impellers, and wear sleeves resist intense drilling mud erosion (sand content > 8%) without compromising directional survey azimuth readings.
Manufactured to customer CAD/CAM drawings (.STEP, .DWG, .DXF) with guaranteed batch-to-batch chemical homogeneity and metallographic traceability.
Clear, unvarnished metallurgical and commercial guidance for purchasing managers, tooling designers, and plant engineers in Mexico City.
Every non-magnetic batch produced at our Jiangxi factory undergoes rigorous testing using low-field magnetic susceptibility meters and calibrated fluxgate magnetometers compliant with ASTM A342/A342M standards. We provide certified mill test reports (MTR) confirming relative magnetic permeability below µr 1.005, with selected ultra-high grade batches reaching µr < 1.002 across the entire component volume.
Yes. Custom fabrication accounts for over 85% of our export output. Our facility accepts 2D/3D CAD models (.STP, .STEP, .IGES, .DWG, .PDF). We maintain tight dimensional tolerances down to ±0.002 mm (±2 microns), roundness within 0.0015 mm, and surface finishes down to Ra 0.05 µm via precision diamond grinding, CNC wire-EDM, and lapping.
While austenitic stainless steel (AISI 316) is non-magnetic, its hardness rarely exceeds 30 HRC, resulting in rapid wear within days in abrasive slurries or high-cycle stamping. Titanium alloys reach ~40 HRC. In contrast, Zhongfu non-magnetic carbide provides a diamond-like hardness of 88 to 92.5 HRA (70 to 80 HRC equivalent), delivering 20x to 50x longer working lifespans without losing its non-magnetic properties.
We routinely supply Mexican clients under DAP (Delivered at Place) or DDP (Delivered Duty Paid) Mexico City terms. Prototype and urgent replacement orders fly via DHL/FedEx Express directly to Mexico City AICM or NLU airports in 4 to 6 business days. Production volume freight ships by sea to Port of Manzanillo or Lázaro Cárdenas (transit time approximately 18 to 22 days), followed by bonded rail or truck to central Mexico.
No. In poorly formulated carbide containing residual cobalt, plastic stress from machining or rapid thermal cycles can trigger a martensitic transformation that causes localized magnetism. Zhongfu’s stabilized austenitic Ni-Cr binder system remains thermodynamically stable. Even under heavy cyclic impacts, heavy EDM discharge, or severe cryogenic cold, our parts maintain zero residual magnetic induction.
Our dedicated international metallurgical engineering desk evaluates inquiries within 8 hours. We deliver complete manufacturability feedback (DFM), grade recommendations matching your exact operating temperature and abrasive media, pricing in USD, and comprehensive tooling dimensional proposals without delay.
Submit your 2D/3D technical drawings or CAD files today. Our engineering staff provides quotation, grade formulation guidance, and sample test support within 8 hours.