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Premium High purity Alumina Ceramic Blocks components

✅ 99% High-Purity Alumina – Exceptional wear resistance, high-temperature durability, and corrosion resistance, ideal for semiconductor manufacturing, electronic packaging, and precision machinery.

✅ CNC Ultra-Precision Machining – Achieving ±0.01mm tolerance, with fine grinding for an ultra-smooth surface.

✅ Factory Direct Supply – No middlemen, ensuring the best quality at the most competitive prices.

✅ Custom Manufacturing – We offer tailor-made solutions to meet your exact specifications in size, shape, and tolerance.

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Model:
01066
Brand:
HaoRui
Code:
custom01001

Product Description

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Factory Direct Supply | Premium Alumina Ceramic Blocks at Competitive Prices!

✅ 99% High-Purity Alumina – Exceptional wear resistance, high-temperature durability, and corrosion resistance, ideal for semiconductor manufacturing, electronic packaging, and precision machinery.

✅ CNC Ultra-Precision Machining – Achieving ±0.01mm tolerance, with fine grinding for an ultra-smooth surface.

✅ Factory Direct Supply – No middlemen, ensuring the best quality at the most competitive prices.

✅ Custom Manufacturing – We offer tailor-made solutions to meet your exact specifications in size, shape, and tolerance.

Why Choose Us?
✔ Factory-direct pricing with no extra markups
✔ Strict quality control for guaranteed performance
✔ Global shipping & fast delivery

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Comment & FAQ

1. Are you a factory or a trading company?

A:We are a professional manufacturer of ceramic parts. we are factory.

2. Do you only supply standard parts or can customized parts according to our drawing?

A: All parts can be customized according to you drawings and will meeting your requirements perfectly.

3. Can the price be negotiated?

A: Of course, we will consider discounts for large-volume orders.

4: Can you guarantee the product?

A: Yes, we promise to provide quality assurance for all products, inspect according to your drawings and issue an inspection report. If you are not satisfied with our product quality or service, please feel free to give us feedback.

5: Can I visit your factory?

A: Of course, welcome your arrival, please contact us in advance and make an appointment.

6: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

7: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below:

sales@szhr-tech.com

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Certifications

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Data Sheet

Properties of Alumina material (Al2O3)

Property	Item	95% Al2O3	99% Al2O3	99.8%Al2O3	Unit
Mechanical Characteristics	Color	White	light yellow	Ivory
	Bulk Density	3.7	3.85	3.93	g/cm³
	Water Absorption	0	0	0	%
	Bending Strength	300	310	370	MPa
	Compressive Trength	2,300	2,400	2500	MPa
	Elastic Modulus	320	340	390	GPa
	Fracture Toughness	3~4	3~4	4	MPa m^1/2
	Weber Coefficient	12	12	12	m
	Vickers Hardness	1,400	1,600	1850	HV 0.5
Thermal Characterics	Coefficient of Line Thermal Expansion	7~8	7~8	7~8	10^-6 K^-1
	Thermal Conductivity	20	29	32	W/mK
	Thermal Shock Resistance (Put in Water)	250	200	280	ΔT °C
	Max Working Temperature	1,500	1,600	1700	°C
Electrical Characteristics	Volume Resistance At 20°C	>10¹⁴	>10¹⁴	>10¹⁴	Ωcm
	Dielectric Strength	15×10⁶	15×10⁶	15×10⁶	V/m
	Dielectric Constant	9	10	10	εr
	One MHZ Dielectric Loss Angle at 20°C	0.0004	0.0002	0.0001	tanδ
Chemical Characteristics	Nitric Acid (60%) 90°C	0.1	0.1	0.05	24H WT Loss mg/cm²
	Sulphuric Acid (95%) 95°C	0.3	0.34	0.22
	Caustic Soda (30%) 80°C	0.9	0.95	0.04