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Custom Shaped Precision Alumina Ceramic Screws for Industrial Applications

Shengda Ceramic provide all kinds of alumina ceramic part. Also can supply the mirror surface treatment to meet the sealing requirements of bearings, etc. Any dimension requirement, please contact us.

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Product Introduction

Product Highlights:

Our 95% Alumina Ceramic Screws (Al2O3) are precision-engineered for industries requiring high temperature resistance, electrical insulation, and chemical stability. These custom-shaped screws outperform metal fasteners in extreme conditions, offering superior durability, non-conductivity, and corrosion resistance.

Key Technical Specifications:

Material Composition: 95% Alumina (Al2O3) – High purity for optimal performance

Density: 3.7 g/cm³

Hardness: 1,200 HV (Mohs 8.5)

Max Operating Temperature: 1,500°C (2,732°F)

Thermal Shock Resistance: Excellent (ΔT > 500°C)

Dielectric Strength: 12 kV/mm

Chemical Resistance: Resistant to acids, alkalis, and organic solvents (except HF)

Custom Options: Thread sizes (M2-M20), head styles (hex, flat, round), and lengths

Custom Shaped Precision Alumina Ceramic Screws for Industrial Applications

Why Choose 95% Alumina Ceramic Screws?

✔ Cost-Effective – More affordable than 99% Al2O3 screws, yet highly durable.

✔ Precision Machined – Tight tolerances (±0.02mm) for secure, vibration-resistant fits.

✔ Custom Solutions – Tailored shapes for unique industrial needs (e.g., non-standard thread pitches).

Ordering Options:

OEM/ODM support (provide CAD/DWG files for custom designs).

Bulk discounts available for industrial buyers.

Ceramic Properties

Properties	Units	Cordierite Ceramic	Mullite Ceramic	95%Alumina Ceramic	99%Alumina Ceramic	99.5%Alumina Ceramic	99.7%Alumina Ceramic	Silicon Nitride	Zirconia Ceramic
Colour		Yellow	White	White	Light yellow	Light yellow	Light yellow	Black	White
Density	g/cm3	1.9	2.6	3.6	3.8	3.8	3.9	3.2	6
Flexural Strength	Mpa	30	120	300	350	375	375	800	1100
Compressive Strength	MPa	350	500	2500	2800	2800	2554	2600	3000
Modulus of Elasicity(20℃）	Gpa	40	100	300	350	350	357	290	320
Max Use Temperature	°C	1200	1300	1400	1500	1500	1760	1300	1050
Thermal Condutivity	W(m.K)	1.3-1.8	2~6	20	30	30	33-38	25	3
Thermal Expansion Cofficient	10-6/°C	2.5-3	2.5-3	7.5	8	8.2	8.2	3	10
Thermal Shock Resistance	△T℃	300	150	140	150	200	223	600	250
Dielectric Strength	KV/mm	-	-	15	18	18	23.4	14	15
Dielectric Constant	Er	8	8	9	9.2	9.2	9.84	9	26

Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

95 alumina substrate

Certifications

95 alumina substrate

Our customers

Packaging and shipping

95 alumina substrate

Transport

Alumina AL2O3 Substrate Insulating Ceramic Substrate Thermally Conductive Ceramic Sheet

FAQ：

Q: Do you have the products in stock?

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)

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