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China factory - Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd

Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd

  • China,Zhuzhou ,Hunan
  • Verified Supplier
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  3. Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92
China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92
China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92

  1. China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92
  2. China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92
  3. China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92
  4. China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92
  5. China Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92

Non-Magnetic Carbide Mold Core Insert WC-Ni Alloy Cavity Block with HRA 87-92

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Payment Terms T/T,Western Union,L/C
Delivery Time 5-30days
Features High hardness,High impact resistance
Performance Industrial Grade
Purpose Hot Forging
Usage Production Operation
Color Metallic gray
Operatingtemperature Up to 600°C
Design T-shaped Stamping Die
Cavity as request
Trs >3200
Chemical Composition tungsten+cobalt
Brand Name Sanxin
Model Number SX1298
Certification ISO
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,Western Union,L/C Delivery Time 5-30days
Features High hardness,High impact resistance Performance Industrial Grade
Purpose Hot Forging Usage Production Operation
Color Metallic gray Operatingtemperature Up to 600°C
Design T-shaped Stamping Die Cavity as request
Trs >3200 Chemical Composition tungsten+cobalt
Brand Name Sanxin Model Number SX1298
Certification ISO Place of Origin China
High Light Non-Magnetic Carbide Mold Core Insert ，HRA 87-92 Hardness WC-Ni Alloy Cavity Block ，±0.002mm Precision Tungsten Carbide Die
Non-Magnetic Tungsten Carbide Injection Mold Core Inserts
Achieve zero magnetic interference in precision molding with our non-magnetic carbide injection mold core inserts. WC-Ni alloy with HRA 87-92 hardness, µ < 1.002 permeability, and ±0.002mm precision for medical, electronics, and ferrite component manufacturing. Custom designs available.
Non-Magnetic Foundation for Precision Molding
In the production of magnetic materials—ferrites, bonded magnets, magnetic polymers—the mold itself must be magnetically invisible. Conventional steel molds introduce contamination risks, while standard tungsten carbide (WC-Co) retains unwanted magnetic properties. Our Non-Magnetic Carbide Injection Mold Core Inserts (also known as mold cavity blocks) are engineered specifically for this challenge.
Manufactured from specialized WC-Ni (Tungsten Carbide-Nickel) alloy, these precision components deliver the essential combination of absolute magnetic neutrality, exceptional wear resistance, and micron-level accuracy for demanding injection molding applications in the magnetic materials, medical device, and electronics industries.
Core Technology & Material Science
True Non-Magnetic Performance (µ < 1.002)
By utilizing a nickel-based binder system instead of conventional cobalt, our mold core inserts are completely free of ferromagnetic elements. This delivers:
  • Zero magnetic attraction to ferrous particles, preventing contamination in cleanroom environments
  • No interference with magnetic fields—essential for molding ferrite components, magnetic polymers, and MRI-compatible medical parts
  • Complete compatibility with sensitive electronic and medical device manufacturing requirements
The science: Nickel (Ni) has a relatively low Curie point, which can be reduced below room temperature through specialized processing, enabling the production of truly non-magnetic cemented carbide materials.
Optimized Hardness & Toughness Balance
Our non-magnetic carbide grades offer hardness ranging from HRA 86.9 to 92, depending on the specific application requirements:
Property Typical Range Benefit
Hardness HRA 87 - 92 3-5x longer life than tool steel
Density 13.96 - 14.9 g/cm³ High rigidity, excellent wear resistance
Grain Size 1.2 µm (sub-micron) Superior surface finish capability
Flexural Strength 2000 - 2900 MPa Good toughness, crack resistance
This balanced formulation provides significantly higher wear resistance than tool steel while maintaining superior toughness compared to harder, more brittle carbides.
Precision Machining & Tight Tolerances
Our manufacturing capabilities achieve:
  • Critical dimension tolerances: ±0.002mm or better
  • Surface finish: Ra 0.4 µm (standard) to Ra 0.1 µm optical polish
  • Complex cavity profiles: As per customer drawings, achievable to ±0.003mm
Technical Specifications
Parameter Standard Capability High-Precision Option
Material WC-Ni Non-Magnetic Alloy Multiple grades for wear/toughness balance
Hardness HRA 86.9 - 92 Consistent throughout
Magnetic Permeability < 1.002 Certifiable per batch
Density 13.96 - 14.9 g/cm³ Uniform structure
Grain Size 1.2 µm (standard) Sub-micron available
Key Tolerances ±0.005mm (standard) ± 0.002mm or better
Cavity Profile Accuracy As per customer drawing ±0.003mm achievable
Surface Finish Ra 0.4 µm (ground) Ra 0.1 µm or better (optical polish)
Flexural Strength 2000 - 2900 MPa Grade-dependent
Performance Comparison
Property Our Non-Magnetic Carbide Insert Hardened Tool Steel Insert Standard Carbide Insert (WC-Co)
Magnetic Permeability < 1.002 (Non-Magnetic) > 100 (Highly Magnetic) 1.5 - 2.0 (Magnetic)
Hardness HRA 87 - 92 HRC 50 - 55 HRA 90 - 92
Wear Life Millions of cycles (3-5x steel) Moderate Exceptional
Surface Finish Retention Excellent Degrades over time Excellent
Corrosion Resistance Excellent (Ni binder) Good Good
Ideal Application Ferrite, medical, electronics molding General purpose Not for magnetic-sensitive uses
Key Applications & Industries
Industry Application Why Choose Our Insert
Magnetic Material Molding Ferrite cores, magnetic polymer components, bonded magnets Absolute non-magnetic property prevents material magnetization; eliminates magnetic attraction during powder filling
Medical Device Manufacturing Implantable components, diagnostic consumables, MRI-compatible parts Zero magnetic contamination, cleanroom compatibility, corrosion resistance
Precision Electronics Sensor housings, micro-switches, connector components Exceptional wear resistance maintains critical cavity dimensions over millions of cycles
Optical Component Molding Lens holders, light guides, precision optical parts Mirror-finished cavities (Ra <0.1µm) prevent optical defects
Powder Injection Molding (MIM/CIM) Metal and ceramic micro-components Superior wear resistance for abrasive feedstocks
Non-Magnetic Carbide Injection Mold Core Insert WC-Ni Alloy Precision Cavity Block

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Importer,Exporter,Seller,Other

  • Year Established:

    2003

  • Total Annual:

    8000000-10000000

  • Employee Number:

    150~180

  • Ecer Certification：

    Verified Supplier

Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,... Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,...

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Get in touch with us

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  • Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
  • No. 8, Middle School Road, Baiguan Town, Lusong District, Zhuzhou, Hunan, China
  • https://www.tungstencarbidesteel.com/

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