Manufacturer customizes YG8 cemented carbide seal rings, featuring wear resistance, durability, high hardness and high toughness.
Price:
$300 – $400 / pc
MOQ:
MOQ: 10 piece
Delivery Time:
15 working days
Brand:
XinSheng
Product Description
1. Material Introduction
Made of tungsten carbide (WC) with cobalt (Co) or nickel (Ni) binder via powder metallurgy sintering. Balanced hardness and toughness for harsh sealing conditions.
2. Physical Properties
-
Hardness: HRA 88-92 (HV 1300-1800)
-
Flexural Strength: ≥1500 MPa
-
Density: 14.0-15.0 g/cm³
-
Thermal Conductivity: 80-100 W/m·K
3. Advantages & Disadvantages
Advantages
-
High toughness, anti-impact, no brittle fracture
-
Excellent wear resistance for particle-containing media
-
Stable mechanical performance under vibration
Disadvantages
-
Limited corrosion resistance; cobalt binder vulnerable to strong acid
-
Lower thermal conductivity than silicon carbide
4. Common Grades & Application
|
Grade
|
Co Content
|
Features
|
Working Condition
|
|---|---|---|---|
|
YG6
|
6%
|
High hardness & wear resistance
|
Clean water, oil, weak corrosion
|
|
YG8
|
8%
|
Good toughness & anti-impact
|
Particle medium & vibration environment
|
|
YG15
|
15%
|
Superior toughness
|
Heavy load & strong impact (mining)
|
|
Ni-based Alloy
|
Ni instead of Co
|
Better corrosion resistance
|
Strong acid & alkali chemical pumps
|
5. Machining Precision
Processed only by diamond tools. Strictly polished for sealing end face.
-
Surface Roughness: Ra ≤ 0.1 μm (Mirror finish)
-
Flatness: ≤ 0.0009 mm
-
Process Flow: Compaction → Vacuum Sintering → Diamond Grinding → Lapping → Polishing
6. Structure Type
-
Integral Type: Full tungsten carbide, high performance & high cost.
-
Insert Type: 1.5-3mm carbide sheet fixed on steel seat by brazing/shrink fit. Cost-effective & widely used.
7. Material Comparison
|
Material
|
Hardness(HV)
|
Toughness
|
Corrosion Resistance
|
Thermal Conductivity
|
Cost
|
|---|---|---|---|---|---|
|
WC-Co Carbide
|
1300-1800
|
Excellent
|
Weak acid resistant
|
Good
|
Medium-High
|
|
SiC
|
2500-3000
|
Poor
|
Excellent
|
Excellent
|
High
|
|
Al₂O₃ Ceramic
|
1600-1800
|
Very Poor
|
Acid resistant
|
Poor
|
Low
|
|
Graphite
|
Very Low
|
Self-lubricating
|
Excellent
|
Good
|
Low
|
Matching Tip: Tungsten carbide hard ring + impregnated graphite soft ring (Hard-to-soft combination), widely used for water pumps & chemical pumps.
8. Application Fields
-
Petrochemical: Centrifugal pump, reactor, compressor shaft seal
-
Mining & Metallurgy: Slurry pump, mud pump
-
Machinery: Centrifuge, spindle seal
-
Marine: Seawater pump, propeller seal
9. Our Service
-
Custom OEM: Custom size & drawing available
-
High Precision: Mirror polishing, strict tolerance
-
Factory Direct: Stable supply & competitive price
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Zigong Xinsheng Hard Alloy Co., Ltd
Location
Zigong Xinsheng Hard Alloy Co., Ltd., Liangshuijing, Da'an District, Zigong City, Sichuan Province
Contact Person
Mr.Chen