brown aluminum oxide By Futong Industry Co.,Ltd.,
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brown aluminum oxide

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China

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FT-A

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Personne à contacter Mr. yujie

No72 Nongye Road,, Zhengzhou, Henan,China

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Spécification du produit

La description

description:   Brown fused alumina is made from high quality bauxite by fusing in an electric arc furnace at high temperature. It has good toughness and high hardness. It is suitable for manufacturing of vitrified and resin bonded tools, and for lapping polishing and sand blasting. It can be also used to make superior refractory products. Chemical & Physical Properties Crystal Form Alpha alumina trigonal system Chemical nature Amphoteric Reaction with acids Subject to mild attack by aqua and/or hydrofluoric acid Reaction with Alkalies Very slight with strong hot solution only Oxidation-reduction effects None True Density(g/cm3) 3.*7 Hardness Knoop (kg/cm2) ********0 Moh?s 9.0 Color Dark Brown Color after firing Light blue Melting point ***0?C Max Usable temperature ***0?C Specific heat (cal/g.?C) 0.*6(****9?C) Coefficient of thermal conductivity (cal/cm2.sec.?C) Room temperature **0?C 0.**7 0.**3 Electrical resistivity (Wcm) *0?C **0?C **0oC ***0?C ***6 ***3 **5 **4 Coefficient of liner expansion (x***6) **9(*****0?C) Chemical Composition (% by weight) Grit Item *0 ? *0 **0 ? **0 **0 - **0 ******0 *******0 Al2O3 *5.0 - *7.0 *4.5 min *3.5 min *2.0 min *9.0 min TiO2 2.0 - 3.0 2.0 - 3.0 2.*- 3.8 4.0 max 4.0 max SiO2 1.2 max 1.2 max 1.2 max     Fe2O3 0.4 max 0.4 max 0.5 max     Magnetic Matters Contents (% by weight) Grit No. Magnetic Matters Content *6#**0 <0.***0 *6#**0# <0.***0 *****0# <0.***0 **0#***0# <0.***0 Available Sizes F**-F**0, F*******0 P**-P**0, P***-P***0 W**-W5,JIS***-JIS***0. Other sizes can be also available on request. Tony.zhao at ftong dot com dot cn ;friend_tony at hotmail dot com

Pays: China
N ° de modèle: FT-A
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