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Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
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Home ProductsTungsten Carbide ProcessingHigh-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit
High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit
High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit

High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit

Product Details:
Place of Origin: China
Brand Name: Sanxin
Certification: ISO9001
Model Number: SX-2297
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
Features: Excellent Wear And Corrosion Resistance Grade: K10,K20,K30,YG8,YG6X
Customshapes: Available Upon Request Meltingpoint: 2870 °C
Design: Non-Standard Processingtype: Cutting, Grinding, Polishing
Feature: Enhanced Durability Advantage: High Wear Resistance
Tensilestrength: Up To 1400 MPa Lifespan: Long
Highlight:

Excellent Wear and Corrosion Resistance Tungsten Carbide Valve Seat

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High-Temperature Resistance up to 900°C Valve Stem Assembly

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Precision Fit Tungsten Carbide Valve Core

Product Description

High-Performance Tungsten Carbide Valve Seat / Valve Stem Assembly
This cemented carbide valve seat and valve stem matching assembly is manufactured from primary ultrafine tungsten carbide powder using a high-pressure sintering process. Specifically engineered to withstand extreme working conditions involving erosion, corrosion, high pressure, and high temperature, this assembly is ideal for demanding industrial applications.
Core Advantages
Extreme Hardness and Wear Resistance
  • Material Properties: Made from YG-class sub-micron tungsten carbide-based cemented carbide, achieving hardness of HRA 88-93 (approximately equivalent to > HRC 76)
  • Erosion Resistance: Resistance to particle erosion is dozens of times higher than traditional stainless steel (e.g., 316L), effectively resisting cutting wear from solid particles in high-velocity fluids
Excellent Corrosion and High-Temperature Resistance
  • Chemical Stability: Tungsten carbide offers excellent resistance to chemical corrosion. Customizable binder phase (e.g., Cobalt, Nickel) provides tailored resistance to acidic (e.g., H2S/CO2) or alkaline media
  • High-Temperature Application: Maintains high hot hardness in environments up to 600°C to 900°C, resisting softening and deformation to ensure sealing performance at elevated temperatures
Precision Fit and Zero-Leakage Sealing
  • Mirror Lapping Process: Valve stem and seat manufactured using matched grinding technology with high-precision internal/external cylindrical grinding and lapping/polishing
  • Sealing Class: Fit clearance controlled to micron level, enabling bubble-tight sealing (meeting ANSI/FCI 70-2 Class VI or higher standards) and preventing internal leakage
Impact Resistance and Structural Integrity
  • Tough Matrix: Optimized cobalt content and sintering process maintain high hardness while providing adequate toughness and strong impact resistance
  • Durability: Prevents breakage or chipping during rapid valve cycling or pressure fluctuations
Technical Specifications
Material Tungsten-Cobalt cemented carbide (YG6X, YG8, YG15, etc.) / Tungsten-Cobalt-Nickel (customizable non-magnetic or corrosion-resistant formulas based on media)
Hardness HRA 87.0 - 93.0
Density 14.5 - 15.2 g/cm³
Transverse Rupture Strength ≥ 2500 N/mm²
Surface Roughness Ra ≤ 0.1 μm (lapped surface)
Fit Clearance Customizable (typically 0.005mm - 0.02mm)
Suitable Media Particle-laden slurries, pulverized coal, high-temperature flue gas, highly corrosive acids/alkalis, high-viscosity fluids, etc.
Applicable Conditions
  • Petrochemical: Valves in catalytic cracking units and hydrocracking units
  • Coal Chemical: Wear-resistant control valves in gasification units and black water/grey water treatment systems
  • Thermal Power: Slurry shut-off valves and slag discharge valves in Flue Gas Desulfurization (FGD) systems
  • Mining & Metallurgy: Wear-resistant directional valves in ore slurry pipelines
  • General Industry: High-pressure cleaning equipment, steam traps, etc.
Customization and Services
We offer comprehensive custom services based on customer-provided drawings, samples, or operating parameters (temperature, pressure, medium composition):
  • Material Customization: Optimize cobalt content or add rare metal carbides to enhance specific properties
  • Dimension Machining: Accept non-standard dimensions for turning, milling, drilling, and threading
  • Assembly Support: Provide brazing, shrink-fitting, or mechanical fastening assembly services with valve body metal components
High-Performance Tungsten Carbide Valve Seat and Valve Stem Assembly with Excellent Wear and Corrosion Resistance, High-Temperature Resistance, and Precision Fit 0

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machining tungsten carbide

tungsten carbide production process

tungsten carbide manufacturing process

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