Calcined alumina powder A75 for polishing and grinding of stainless steel surfaces.

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Calcined Alumina

key word：

Calcined Alumina Powder A75

Aluminaium oxide

polishing

grinding

surface

Description

Calcined Alumina Powder A75 is a high-performance abrasive specifically designed for grinding and polishing applications. It features uniform particle size distribution, high hardness, and excellent thermal stability, making it ideal for precision surface finishing. The A75 grade offers consistent cutting action and produces a smooth, scratch-free surface on metals, ceramics, and other materials. It is widely used in lapping, polishing, and surface preparation processes. With good dispersion and controllable abrasiveness, Calcined Alumina A75 enhances processing efficiency while minimizing surface damage, making it a reliable choice for demanding industrial polishing and grinding operations.

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Typical Properties		Product	A75	A325
Chemical Composition	H2O	%	0.04	0.04
	L.O.I	%	0.05	0.07
	Fe203	%	0.01	0.02
	SiO2	%	0.01	0.05
	Na2O	%	0.26	0.29
	Al2O3	%	99.6	99.50
Specific Gravity		g/cm3	3.95	3.95
D10		μm	22.76	24.06
D50		μm	48.60	47.41
D90		μm	76.19	74.63
D97		μm	91.10	91.26
α Crystal Size		μm	2~4	/
Packing	Big bag	1000KG
Packing	Paper bag	25KG

FAQ

Q: Are you a factory?
A: We partner with three well-known manufacturers in the industry to ensure stable product quality. We strictly implement 5S management, maintain full traceability for each batch, and exercise rigorous quality control throughout the process.

Q: How is your quality?
A: We use top-grade production equipment and precision measuring instruments, and our engineers and technicians conduct strict quality control.

Q: Can you supply free samples?
A: A 1 kg free sample is available, but freight charges will be at your expense. The freight cost will be refunded to you or deducted from your future order.

Q: What are your products used for? (or "Which areas can your products be applied to?")
A: Our products are widely used in refractory materials, daily-use and industrial ceramic glazes, electrical fillers, optical glass, stainless steel surface grinding and polishing, ceramic grinding balls, and lithium battery ceramic separators, among other fields.

Q: What are your payment terms?
A: 100% T/T in advance; or 30% T/T in advance, balance 70% against copy of B/L; or irrevocable L/C at sight.

Q: What is your MOQ?
A: MOQ is typically 1 ton. Special products can be negotiated.

Q: Can I visit your factory?
A: Yes, you are welcome to visit our factory at any time.

Q: What is your delivery time?
A: Shipment is usually made within 15 days after payment confirmation. Some products may require a longer lead time.

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