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Silicon nitride welding custom ceramic positioning pins

Silicon nitride welding custom ceramic positioning pins

  • Silicon nitride welding custom ceramic positioning pins
  • Silicon nitride welding custom ceramic positioning pins
Silicon nitride welding custom ceramic positioning pins
Product Details:
Place of Origin: Jiangsu, China
Brand Name: Weite ceramics
Certification: ISO9001
Payment & Shipping Terms:
Minimum Order Quantity: 1000piece
Price: Negotiate
Packaging Details: carton
Supply Ability: 100000 per month
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Detailed Product Description
Features: High Thermal Shock Resistance Material: Silicon Nitride Positioning Pin
Colour: Dark Gray\black Relative Density: 99%
Hardness (HV): 14-16 Fracture Toughness: 6-7(MPa•m1/2)
Thermal Shock Resistance ΔT℃: 1300 Application: Aerospace And Military Industry
High Light:

Welding Custom Ceramic Pins


Si3N4 Custom Ceramic Pins


Silicon Nitride Welding Ceramic Positioning Pin 

Product Overview

Silicon nitride ceramics have high strength, especially high-purity silicon nitride, which is one of the hardest substances in the world.

Very strong corrosion resistance, can be used in strong acids and alkalis, soluble in hydrofluoric acid but does not react with other organic acids


Uses of shaped ceramic positioning pins: automobiles, clutches, engines, universal joints, axles, motorcycles, crankshafts, connecting rods, loaders, excavators, power tools, pneumatic tools, construction machinery, etc.
Classification of special-shaped ceramic positioning pins: fixed positioning pins, replaceable positioning pins, tapered positioning pins, trimmed positioning pins, standard diamond shaped positioning pins.
Ceramic positioning pin material: zirconia and alumina, silicon nitride ceramic material.


We can customize various types of non-standard special-shaped ceramic positioning pins and special-purpose special-shaped ceramic positioning pins according to customers' use environment, use requirements and required material properties.


Product parameter table




Alumina AL203 Silicon carbide sic Silicon nitride sin Silicon nitride sin
Color Ivory black black Milky white, gray black
Content(%) 99.5 …… …… ……
Main features
  • Excellent high frequency electrical insulation
  • Good wear resistance
  • preservative
  • Strong
  • High hardness


  • Good high temperature strength
  • High thermal conductivity
  • Strong alkali resistance
  • Wear-resistant
  • Lightweight
  • Good high temperature strength
  • Strong impact resistance
  • Strong corrosion resistance
  • Lightweight
  • High strength and high impact resistance
  • Good self-lubricating
  • Strong alkali resistance
  • Smooth surface
  • Good toughness
The main purpose
  • Wear parts
  • High temperature parts
  • Corrosion resistant parts
  • Machinery Seal
  • Sliding parts
  • High temperature parts
  • Molten metal parts
  • Metal plasticity
  • Processed parts
  • Industrial knives
  • Pump parts
  • Wear parts
Density Kg/m³ 3.9*10 3.16*10 3.3*10 6.0*10



Mechanical behavior


Vickers hardness Gpa 16.0 23.0 14.0 13.2 12.7
Flexural strength Mpa 360 450 1020 1000 1470
Compressive strength Mpa 2350 …… …… …… ……
Fracture toughness Mpa 4 2-3 7 4-5 4-5



Thermal performance


Linear expansion coefficient 40-400℃ ×10-5/℃ 7.2 3.7 2.8 10.5 10.8
40-800℃ 8.0 4.4 3.3 11.0 11.3
Thermal conductivity W/(m·k) 32 200 27 3 3
Specific heat J/(kg·k) 0.78*10 0.67*10 0.65*10 0.46*10 0.46*10
Thermal shock resistance (in water) 250 …… >800 300 350
Electrical performance Dielectric strength V/m 15*105 …… 13*105 11*105 ……
Volume resistance(20℃) Ω·cm >1014 108 1014 1013 ……
Dielectric constant …… 9.6 …… 9.9 33 ……
Loss factor ×10-4 10 …… …… 520 ……


Product features
  1. High hardness: the hardness of zirconia is second only to diamond
  2. High wear resistance: High hardness and good red hardness determine that the zirconia positioning pin has excellent wear resistance
  3. High cost performance: the service life of zirconia positioning pins is several times that of ordinary positioning pins




Ceramic positioning pins can be applied to accessories for special purpose parts of high temperature resistance, corrosion resistance, wear resistance, and high voltage resistance used in industries such as electronics, machinery, chemical industry, metallurgy, textiles, and power.
After the positioning pin is worn, it will produce a blocking effect when loading and unloading, causing the positioning hole of the part to be hooked. In order to ensure the accuracy of the relative position between the two parts after the certificate is installed, cylindrical pins or tapered pins are often used for positioning, so the requirements for the pins and pin holes are high. In order to facilitate the processing of pin holes and pins, as far as possible, the pin holes are made as through holes as much as poss


Silicon nitride welding custom ceramic positioning pins 0


Product Picture


Special-shaped ceramic positioning pins have extremely strong corrosion resistance, and can also be used in strong acids, strong alkalis, and seawater. At 1100 ℃, the strength and hardness are almost unchanged. Can also be used in non-magnetic and magnetic fields.

Silicon nitride welding custom ceramic positioning pins 1

Silicon nitride welding custom ceramic positioning pins 2


Product packaging


Packed in carton

Silicon nitride welding custom ceramic positioning pins 3




1. Are you a businessman or a manufacturer?
We are a company, we have our own factory

2. How long is your delivery time?

3. Can the product be customized?
Can be customized

4. What is the product packaging?
Carton or according to customer requirements

Contact Details
Yixing Weite Chinaware Co., Ltd

Contact Person: wei.teci

Tel: +8613801535622

Send your inquiry directly to us
Yixing Weite Chinaware Co., Ltd
Hongwei Development Zone, Dingshu Town, Yixing City, Jiangsu Province
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