20 Years Construction Machinery Parts Supplier in Manufacturing Cemented Carbide Production - KOIHO
Composition: WC-Co/Ni (94% tungsten carbide, 6% cobalt/nickel binder)
Hardness: 89-92 HRA (Rockwell A scale)
Density: 14.5-15.0 g/cm³
Production: HIP (Hot Isostatic Pressing) sintering ensures >99.5% density
Abrasion Resistance
8× longer service life than 440C stainless steel in API 610 slurry tests
Withstands particle velocities up to 25 m/s in 20% solids concentration
Corrosion Protection
<0.01mm/year corrosion rate in 3.5% NaCl solution (ASTM G31)
pH resistance range: 2-12 (nickel-binder variant extends to pH 1-14)
Thermal Management
Thermal conductivity: 75-85 W/m·K (vs. 15-20 W/m·K for steel)
Operational range: -200°C to +800°C (inert atmosphere)
Carbide bushings are versatile components used across various oil pump types, including:
Submerged Oil Pumps: Protect shafts in deep-well or offshore environments, resisting corrosion from seawater.
Slurry Pumps: Handle abrasive mixtures of liquids and solids, maintaining performance in mining or drilling operations.
Centrifugal Pumps: Ensure smooth operation under high pressure, reducing friction in petrochemical applications.
Electrical Submersible Pumps (ESPs): KOIHO`s carbide bushings for ESPs provide durability in high-wear, high-pressure conditions.
These bushings are also integral to flow control systems, mechanical seals, and compressors, where tungsten carbide sleeves protect critical components from wear and corrosion.
KOIHO BETTER CARBIDE stands out as a leader in precision carbide manufacturing, offering a comprehensive range of hard alloy bushings and related products, including cemented carbide sealing rings, API valve balls and seats, and non-standard carbide parts. Here’s why KOIHO is the preferred choice:
Expertise and Quality: With decades of experience, KOIHO employs advanced powder metallurgy and precision machining to produce wear-resistant carbide bushings that meet stringent industry standards.
Customization Options: KOIHO offers tailored tungsten carbide bushings to match specific pump designs, dimensions, or material requirements, ensuring optimal fit and function for unique applications.
Cost-Effective Solutions: Although the higher upfront cost of cemented carbide sleeves ($15-$25 per piece) may be offset, their extended lifespan delivers significant savings, reducing maintenance costs by up to 30%.
Broad Product Range: Beyond bushings, KOIHO offers carbide parts for decanter centrifuges, corrosion-resistant bushings, and API valve components, supporting a diverse range of oil and gas needs.
Reliable Support: KOIHO`s expert team offers technical guidance to help select the right hard alloy bushings, ensuring maximum performance and value.
In addition to carbide bushings for oil pumps, KOIHO BETTER CARBIDE offers a wide range of precision carbide parts, including:
Carbide Bushings & Sleeves for ESPs: Enhance durability in high-pressure submersible pumps.
Cemented Carbide Sealing Rings: Provide leak-proof seals in compressors and agitators.
API Valve Balls & Seats: Ensure reliable flow control in petrochemical systems.
Wear-Resistant Carbide Parts for Decanter Centrifuges: Optimize performance in oil processing.
Non-Standard Precision Carbide Parts: Custom solutions for unique industrial needs.
This diverse portfolio makes KOIHO a one-stop provider for oil and gas applications, delivering quality and value across the board.