Silicon Nitride Ceramic Si3n4 Location Guide Pin for Spot Nut Welding

• Customization: Available
• Application: Aerospace, Electronics, Structure Ceramic
• Type: Ceramic Rods
• Model NO.: HBF-C009
• Name: Si3n4 Welding Pin
• Name2: Ceramic Welding Pin
• Color: Black, Grey
• Surface: Smooth
• Certification: ISO9001
• Tolerance: +-0.05mm
• Material: Silicon Nitride
• Type1: M4 M5 M6 M7 M8 M10 M12 M14
• Working Temperature: 1200 Centigrade
• Vickers Hardness: 24
• Flexural Strength: 480
• Transport Package: Export Carton
• Specification: customized
• Trademark: HIGHBORN
• Origin: Jiangsu, China
• Production Capacity: 50000PCS Per Month
• Package Size: 25.00cm * 25.00cm * 25.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

Silicon Nitride Locating Pin, Si3N4 Positioning Pin

Silicon Nitride (Si3N4) Ceramic Locating Pin is produced by isostatic pressing + gas pressure sintering, followed by precision cylindrical grinding. Widely used for high-temperature mold positioning, automation fixture and semiconductor tooling, automation fixture pin, semiconductor tooling, EV battery fixture, high temperature positioning component, non-ferrous metal casting mold parts

Silicon Nitride Ceramic Dowel Pin, Ceramic Locator Pin

Bulk Density:≥3.20 g/cm³
Vickers Hardness:1450~1550 HV
3-point Bending Strength:≥750 MPa
Fracture Toughness:6.0~7.2 MPa·m¹/²
Thermal Expansion Coefficient(20~800℃):2.6~3.2 ×10-6 /K
Volume Resistivity:10 14Ω·cm
Max long-term working temperature:1200℃
Precision Tolerance: Outer diameter ±0.003~±0.01mm
Surface Roughness Ra: 0.2~0.6 μm
Non-magnetic, zero water absorption
Available shape: Straight cylindrical pin, shoulder locating pin, stepped pin, chamfered pin
Support custom diameter, length, step structure, thread, chamfer according to drawings

High Toughness Si3N4 Ceramic Dowel Pin

Excellent thermal shock resistance & low thermal expansion Small thermal deformation under alternating hot & cold working; positioning accuracy stable at high temperature, less jamming inside mold holes.

High toughness & anti-chipping performance Not easy to crack or edge collapse under impact and frequent assembly, far better than alumina ceramic pin.

Outstanding wear resistance Long service life, reduce frequent pin replacement, lower mold maintenance downtime.
High temperature insulation & corrosion resistance Resist oxidation, molten aluminum splash, acid & alkali corrosion; avoid electric conduction in high voltage fixture.

Low affinity with molten aluminum Less aluminum adhesion during die casting, easy demolding, reduce mold cleaning workload.
Light weight Lower density than tungsten steel, reduce abrasion of mold matching holes.

Technical Specifications

(The above data is only for your reference.)

Item	gas pressure sintering	hot pressing sintering	reactive sintering	pressureless sintering
Rockwell hardness (HRA)	≥75	-	>80	91-92
Volume density(g/cm3)	3.25	>3.25	1.8-2.7	3.0-3.2
Dielectric constant (εr20℃,1MHZ)	-	8.0(1MHz)	-	-
electric volume resistivity (Ω.cm)	1014	108	-	-
breaking tenacity (Mpa m1/2)	6-9	6-8	2.8	5-6
Elasticity modulus(GPa)	300-320	300-320	160-200	290-320
thermal expansivity (m/K*10-6/℃)	3.1-3.3	3.4	2.53	600
thermal conductivity (W/MK)	15-20	34	15	-
weibull modulus (m)	12-15	15-20	15-20	10-18

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FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
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Q3: How do you ensure on-time delivery for bulk orders? 
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Q4: Why is your factory price more stable than trading companies? 
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Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.