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item

95

96?

97?

Al2O3?

≥95%?

≥96%?

≥97%?

SiO2?

≤1.2%?

≤1.0%?

≤0.8%?

TiO2?

≤3.2%?

≤3.0%?

≤2.0%?

Fe2O3?

≤0.3%?

≤0.2%?

≤0.2%?

CaO+?MgO?

≤0.6%?

≤0.5%?

≤0.4%?

Real?demsity?

≥3.9?g/cm3?

Moh's?hardness?

9.0?

Microhardness?

2000-2200KG/MM2?

Clarseness?

8-5MM???5-3MM???3-1MM???1-0MM?

16#?24#?30#?36#?46#?60#?70#?80#?90#?100#?120#?

Fines?

??180F???200F???240F???325F?(Fe2O3?≤0.50%)?

Product name

Energy saving and environmental protection with black corundum , black emery

Model No

BA-46#

Brand name

BA,CHINA

Description

The black corundum is made from the high quality aluminum, iron and other trace elements fused in the arc furnace, forming the black crystal.

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Advantage

• high toughness,
• high temperature resistance
• stable thermal property
• strong cutting ability
• durability
• high work efficiency.

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Parameter

• The color: black
• The shape: particle in trigonal shape
• Melt point:2050°C
• The max temperature:1850°C
• True density(g/cm3):?≥3.50
• Coefficient of linear expansion(0-1600°C): 7-9

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Usage

• it is used for the bicycle, motorcycle, sewing machine, and clock parts
• light ornament, plastic and hardware polishing, and also applicable to the sand blasting.
• the production materials: manufacturing resin-cutting slice, edges and corners grinding and coated abrasives.
• the black corundum particle and micro powder are suitable for stainless steel work piece polishing and abrading and making the whetstone and polishing paste.
• Black corundum sand is the preferred material of the slip-prevented road and coal pits warehousing

Shipping way

By sea, by air, by express

Delivery time

Within 7 days from the receipt of payment

Loading seaport

Shenzhen

Package

25kg/bag with woven bag, 40bags per pallet

Price term

FOB Shenzhen, CFR,, CIF, FCA, EXW ect

Payment term

100% T/T in advance(negotiation)