Aluminium Oxide Blasting Services
Aluminium oxide is among the hardest and cleanest abrasives in use.
- Hard, angular abrasive
- No iron contamination
- Preparation for thermal spray
Why Aluminium Oxide Is Used
Aluminium oxide, also called brown fused alumina, is a very hard and sharp abrasive. It cuts a clean, angular profile quickly, even on hardened and alloy steels, and it breaks down slowly, so it can be recovered and reused.
Unlike steel abrasives, it leaves no iron particles in the surface. This is important on stainless steel, where trapped iron would rust and stain, and on parts that will receive thermal spray coatings.
It is one of the four abrasives that we use, alongside steel grit, copper slag and and it is available at our facilities in Bengaluru and at your site.
When Aluminium Oxide Is Appropriate
Stainless Steel
Prepares stainless steel for coating without leaving iron that would rust and stain the surface.
Hard and Alloy Steels
Cuts a profile on hardened surfaces where softer abrasives would merely polish them.
Before Thermal Spray
Provides the clean, sharp profile that a sprayed coating requires in order to bond.
Non-Ferrous Metals
Suitable for aluminium, copper and nickel alloys that must not be contaminated with steel particles.
Specification
- Abrasive
- Aluminium oxide (brown fused alumina)
- Cleanliness
- ISO 8501-1 Sa 2½ to Sa 3
- Profile
- Sharp and angular; depth set by the coating specification
- Contamination
- Free of iron
- Suitable materials
- Stainless steel, hardened and alloy steels, nickel and copper alloys
- Profile check
- Surface profile gauge
- Where
- At our facilities in Bengaluru or at your site
Our Aluminium Oxide Blasting Procedure
Clean
Parts are degreased so that oil is not driven into the surface.
Mask
Areas that must retain their finish or size are protected.
Blast
The surface is blasted to the specified grade with recovered and screened aluminium oxide.
Coat
Coating follows promptly, usually on the same day, while the surface is clean.
Applications
Aluminium oxide blasting is used where iron contamination must be avoided.
- Shafts, rolls and valves before thermal spray
- Stainless steel tanks and vessels
- Boiler tubes before thermal spray
- Pump and turbine components
- Alloy castings
Frequently Asked Questions
Why is steel abrasive not used on stainless steel?
Is aluminium oxide reusable?
Can aluminium oxide blasting be carried out at our site?
Send a Drawing for a Blasting Quote
Share the drawing or photographs, the present condition of the steel and the grade you need, such as Sa 2½. One of our engineers will reply with the method and a quotation.
- Reply within one working day
- Drawings kept confidential
- Email acknowledgement
Thank you. Your enquiry has been received.
One of our engineers will contact you to discuss the requirement. A confirmation has been sent to your email address.