Silicon Nitride Ceramic Tube

1. GPS Silicon Nitride Riser Tube for Aluminum Die Casting (ISO 9001 Certified)

Product Description
Premium gas-pressure-sintered Si3N4 tubes engineered for low-pressure aluminum casting systems. Outperforms traditional SiC tubes with zero aluminum wetting and 5-20x longer lifespan.

Key Features
✔ Density: 3.26 g/cm³ (99.5% theoretical)
✔ Thermal Shock Resistance: 300+ cycles (RT⇄1200°C water quench)
✔ Corrosion Resistance: 0% weight loss in molten Al (1-year continuous use)
✔ Standard Sizes: OD90×ID60×L850-1050mm (Custom sizes available)

Why Choose Our Riser Tubes?
• ISO 9001 Certified production with 20,000 pcs/year capacity
• Proven Performance: 22% energy savings in automotive wheel production
• Fast Shipping: Stock available for 15 standard sizes

Technical Specifications

Parameter	Value	Test Standard
Flexural Strength	800-1000 MPa	ASTM C1161
Thermal Conductivity	18 W/mK	DIN 30912
Porosity	<0.5%	ISO 18754

Applications
• Aluminum alloy wheel casting
• Aerospace component foundries
• High-purity electronic packaging