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Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
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Home ProductsTungsten Carbide ProcessingTungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance
Tungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance
Tungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance Tungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance Tungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance Tungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance

Tungsten Carbide Valve Core and Stem Assembly with Extreme Wear Resistance, Excellent Corrosion Resistance, and High Sealing Performance

Product Details:
Place of Origin: China
Brand Name: Sanxin
Certification: ISO9001
Model Number: SX-2296
Payment & Shipping Terms:
Minimum Order Quantity: 10 set
Price: Negotiation
Payment Terms: L/C,T/T
Supply Ability: 10000pcs/month
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  • Detail Information
  • Product Description

Detail Information
Processing Method: Sintering Grain Size: Sub-micron To Several Microns
Type: Tools Parts Feature: Strong
Customization: Available Upon Request Thermal Conductivity: 70 - 100 W/m·K
Melting Point: 2,870°C Tolerance: ±0.01 Mm
Shape: Round, Square, Rectangular
Highlight:

Extreme Wear Resistance Tungsten Carbide Valve Core

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Excellent Corrosion Resistance Tungsten Carbide Stem Assembly

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High Sealing Performance Valve Core and Stem Assembly

Product Description

Tungsten Carbide Valve Core and Stem Assembly
Product Overview
The Tungsten Carbide Valve Core and Stem Assembly is a critical wear component designed for extremely demanding industrial valve applications. Manufactured from high-purity tungsten carbide cemented carbide through advanced powder metallurgy processes including pressing, sintering, and high-precision grinding, this component delivers exceptional performance in harsh operating environments. Its superior hardness and wear resistance provide service life that is multiple times longer than traditional stainless steel or Stellite alloys in applications involving high-velocity fluids, media containing solid particles, and high-temperature, high-pressure conditions.
Core Advantages
  • Extreme Wear Resistance: With hardness ratings of HRA 85-93, tungsten carbide effectively resists erosion and abrasion from solid particles including sand, slurry, and pulverized coal in high-flow media applications.
  • Excellent Corrosion Resistance: Utilizing Nickel (Ni) or Cobalt (Co) as binders, these assemblies offer superior chemical stability against most acids, alkalis, salts, and organic media.
  • Impact and Thermal Shock Resistance: Through optimized cobalt content adjustment, the material maintains high hardness while incorporating necessary toughness to withstand impact loads during valve operation and sudden temperature changes.
  • High Sealing Performance: Precision-lapped mating surfaces between valve core and seat achieve surface roughness below Ra 0.2, ensuring tight shut-off and compliance with zero-leakage standards.
Application Areas
  • Petrochemical Industry: Fluid catalytic cracking units and pipelines handling particulate media
  • Power Industry: Ash handling systems, desulfurization slurry pipelines, and slag discharge valves
  • Mining & Metallurgy: Slurry transportation, tailings processing, and high-pressure descaling systems
  • General Industry: Control valves, globe valves, and gate valves operating under severe service conditions
Technical Specifications
Parameter Specification
Core/Seat & Stem Materials Cemented Carbide (YG6, YG8, YG15, YN6) / 2Cr13, 17-4PH, Inconel 718
Carbide Grade WC-Co (Cobalt-based) / WC-Ni (Nickel-based)
Hardness (HRA) 85 - 93
Density (g/cm³) 14.5 - 15.2
TRS (MPa) ≥ 2000
Core Outer Diameter Tolerance h5 ~ h6
Roundness (mm) ≤ 0.005
Surface Roughness Ra (μm) 0.1 ~ 0.4
Temperature Range (℃) -50 to +650 (inert gas) / ≤500 recommended in air
Pressure Rating Class 150 ~ Class 2500 (PN10 ~ PN420)
Suitable Media Slurries, pulverized coal, ash, solid-containing fluids, highly corrosive fluids
Stem Connection Method Threaded connection, pin connection, integral sintering
Surface Treatment Mirror polishing, Tungsten Carbide coating (stem only)
Technical Notes: The carbide grades listed represent common industry references. Final material selection depends on specific media composition and operating temperature requirements. Stem material selection is primarily determined by media corrosiveness and connection method requirements between core and stem components.

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machining tungsten carbide

tungsten carbide production process

tungsten carbide manufacturing process

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