Product Databook(Excerpt)☐ Aluminum Oxide - Alumina

Table of Contents
1.

2.

3.

4.

Aluminum Hydroxide➢ Generic Grade

Page 2➢ Fine, Very Fine, Low-Soda

Page 2➢ High-Whiteness

Page 3➢ High-Whiteness (Surface Treated)

Page 3➢ Low Viscosity

Page 4

Aluminum Oxide - Alumina➢ Normal Soda / Unground

Page 5➢ Normal Soda / Ground

Page 6➢ Low Soda / Unground

Page 6➢ Low Soda / Ground

Page 7➢ Low Soda / Ground (for Functional Fillers)Page 8➢ Normal Soda / Easy-sintering (Reactive)

Page 9➢ Low Soda / Easy-sintering (Reactive)

Page 10High Purity Alumina - HPA➢ AKP Series

Page 11➢ Advanced Alumina (AA)Page 12➢ NXA Series

Page 13➢ Gamma HPA/HIT Series/High Bulk Density for Single Crystal

Page 14

Activated Alumina / Hydraulic Alumina➢ Activated Alumina : Powder ShapePage 15➢ Activated Alumina : Spherical ShapePage 16➢ Hydraulic Alumina

Page 17<Important Notice for Users of this Databook>(1) All data in this data book is typical and not guaranteed. The typical properties of all the listed products in this databook are subject to change without prior notice due to continual improvements.
(2)

Applications mentioned in this databook are examples without any guarantee. Fitness for any particular purpose
should be verified by customers.

(3)

Please refrain from using products in this databook for medical and food applications.

Page 1 of 17

2. Aluminum Oxide - Alumina
Sumitomo Chemical’s Calcined Aluminas are produced in various levels of calcination level/soda content andsupplied in both unground and ground shapes to satisfy diverse customer requirements.

Normal Soda / UngroundA-21 : High calcined. Used for initial buffing stages of stainless steel.
A-26 : Smaller α crystal size with lower calcination than A-21. Used as a reactive alumina when ground.
A-210 : High calcined. Low dust and good fluidity.

A-21

AM-21

Page 5 of 17

20μm

10μm

A-26

20μm

AM-210

A-210

10μm

20μm

Normal Soda / Ground* Flux 4%, 49MPa(500kg/cm2), sample sintered at 1600 degC.
AM-21 / AM-210 : Ground high calcined alumina. Used for intermediate buffing stages of stainless steel.
AM-210-02 : A variation of AM-210 with bigger particle size and bi-modal particle size distribution. Used for both initial and intermediate buffing stages of stainless steel.
AM-28B/29B : Specially developed for intermediate buffing stages of stainless steel. Some of coarse particles crumble to fine particles.
AM-27 : Finely ground for mirror surface buffing stages of stainless steel.

Low Soda / Unground

Molding density and firing shrinkage vary between these products due to α crystal size differences.

Page 6 of 17

Low Soda / Ground*Flux 4%, 49MPa (500kg/cm2), sample sintered at 1600 degC.
ALM-41-01 / ALM-43 : Ground down close to α crystal sizes.
AL-41DBM-01 : PSD of ALM-41-01 shifted to smaller side. Used for LTCC and thermal conductive fillers.

ALM-41-01

5μm

AL-41DBM-01

Page 7 of 17

5μm

Low Soda / Ground (for Functional Fillers)

AL-M73A : Top-cut version of ALM-43.
AL-S43B : PSD of ALM-43 narrowed.
AL-32B : Big α crystal size, and easy to mix with resins.

AL-M73A

AL-32B

5μm

AL-S43B

5μm

10μm

Page 8 of 17

Normal Soda / Easy Sintering (Reactive)* No flux added, 29.4MPa (300kg/cm2), sample sintered at 1600 deg C.
AMS-5020F : Enables high filling ratio because of bi-modal and broad particle size distribution.
Typically used for castable plasticizer and low shrinkage ceramics.
AMS-90B : Mono-modal particle size distribution, ground down to 0.7μm.

AMS-90BPage 9 of 175μm

Low Soda / Easy Sintering (Reactive)* MgO is an additive and not considered as an impurity in Al2O3.
**No flux added, 29.4MPa (300kg/cm2), sample sintered at 1600 deg C.
AES-11/11C : Sub-micron size particles. Used for fine ceramic applications requiring 99% purity or higher.
AES-11H : Contains less re-agglomeration than AES-11 / 11C, and it makes slurry dispersion easier.
AES-12 : MgO not added. Also used as a sub-filler of thermal interface materials.
AES-23 : Thixotropic and low viscosity.

AES-12

AES-115μm

5μm

Page 10 of 17

Plant & Office Location / Contact

Aluminum Hydroxide as a flame retardant for CCL.

Aluminum Hydroxide as a filler for solid surface.

CONTACTS for Sales and Technical Information◆ Aluminum Hydroxide / Alumina / High Purity Alumina-HPA
Alumina Products Dept. / High Purity Alumina Dept.
2-7-1, Nihonbashi, Chuo-ku, Tokyo, 103-6020, JapanTEL+81 3 5201 0259 FAX+81 3 5201 0460

◆ Activated Alumina / Hydraulic Alumina
Sumika Alchem Co., Ltd.

1-8, Nihonbashi Koamicho, Chuo-ku, Tokyo, 103-0016, JapanTEL+81 3 6837 9340 FAX+81 3 6837 9341

MAR2024ENG_Ed.1