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Yannuo Import & Export Trade Co., Ltd.

Supplier From China
Jun-29-16
Supplier : Brown fused alumina, white fused alumina, black fused alumina, calcined bauxite, black silicon carbide, green silicon carbide for abrasives and refractory materials., standrad, fepa, jis, and gb standard.

Established: 2012

Verification Status



Contact Details:
Room 903, Unit 2, Building 20, Kaiyang Carden
North Mudan Avenue, Luolong District
Luoyang 471000
Henan China


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More Items Similiar to: Yannuo Import & Export Trade Co., Ltd.

Jul-27-19
Brown Aluminum Oxide P Grains Introductionï¼?

Brown Aluminum Oxide is made by electric arc furnace smelting under high temperature with the raw materials of bauxite, anthracite and scrap iron. The significant chemical composition of brown aluminum oxide is aluminum trioxide (chemical formula: AL2O3). It is characteristic by high hardness, high toughness, and high abrasion resistance.

The brown aluminum oxide P grain has more aggregative in distribution than F grain, with features of sharpness and evenly distributive, brings more efficiency for surface treatment. Brown fused aluminum oxide P grain is widely used in coated abrasive such as abrasive cloth, abrasive paper abrasive belts, etc.
Mar-05-18

Brown Fused Alumina

$750
MOQ: Not Specified
1. Introduction:

Brown fused aluminum oxide, otherwise known as Brown Fused Alumina or BFA, is produced through an electric arc furnace process. Brown fused aluminum oxide is both a hard (Mohs hardness 9) and tough material with high strength, making it an excellent abrasive grain raw material for applications such as blast media, sandpaper, grinding wheels and abrasive discs, rolls, belts and pads. Its thermal properties make it an excellent raw material for refractory applications, as well. Because Brown Fused Aluminum Oxide has a high bulk density and high hardness making it the perfect media for removing rust, mill scale, and surface contamination. The consistent particle size allows for a uniform surface finish and coverage.

2. Deep Processed BFA

Calcined BFA: Heating to 1050°C greatly improves the purity, toughness, strength, and wear-resistance of abrasives. Primary application: vitrified grinding wheels.

Blue-Fired BFA: While turning grain-color dark blue, firing at 1350°C achieves far greater toughness and strength, much lower iron content, a very low coefficient of thermal expansion, and excellent hydrophilicity, all of which increase grinding performance and accuracy. Primary applications: coated abrasives (paper, cloth and belts) and heavy-duty grinding wheels.

Ceramic-Coated BFA: Ceramic coating improves purity and hydrophilicity, reduces dust, and achieves grain surfaces that have greater toughness, strength, and roughness, and that are also more uniform in particle size. Primary applications: coated and bonded abrasives.

Ceramic-Coated Blue-Fired BFA: These grains deliver all of the advantages of both Ceramic-Coated and Blue-Fired BFA. Primary application: coated and bonded abrasives, especially for use on hardened steel and other high-carbide materials.

3. Standard Grain Size

Abrasive: F12 to F220; P12 to P220; #240 to #1500
Refractory (mm): 0-0.5, 0-1, 1-3, 3-5, 5-8, 0-10, 0-25, 0-30
Refractory (Mesh): -100, -200, -325

4. General Applications

Non-Skid Flooring
Sanding
Abrasion Resistance
Slurry Polishing
Paint Filler
Grinding
Cue Tip Chalk
Edge Rounding in Tumbling
Wear Resistance
Wet and Dry Barrel Tumbling

5. Package

a) Packed in 1TON big bag
b) Packed in 25KGS x 40Bags in 1MT jumbo bag without pallet
c) Packed in 25KGS x 40Bags in 1MT jumbo bag with pallet
d) Packed 25kg paper bags well packed on the pallet
GOLD Member
VERIFIED
Mar-30-23
Supplier From Southampton, United Kingdom
We are glad to propose 500 MT of stain less steel mill scale.
Mill scale is formed on the outer surfaces during by the hot rolling lamination of stainless-steel products.

At a visual inspection the material is a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in colour, but it also contains considerable alloying elements such as chromium and nickel.

The recovery ratio after melting in furnace for the most valuable alloy elements is:
- Ni: 3.5 - 4.5%
- Cr: 6-8%


From the chemical and physical analysis performed on the scrap, and according to the European environmental rules, the material has been classified as a special non dangerous waste, listed in green list. In particular the mill scale can be classified as follows:

Waste code: 10 02 10

The material is stored on cemented flooring, and it can be loaded loose in tipper trucks or containers.

Chemical analysis of the material is available on request.
GOLD Member
VERIFIED
Oct-28-14
Supplier From Southampton, United Kingdom
Mill scale, is formed on the outer surfaces of plates, sheets or profiles when they are being produced by rolling hot iron or steel billets in rolling or steel mills.
It looks like a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in color.
Being produced during the reheating, conditioning and hot rolling operation for the production of steel articles, the mill scale initially adheres to the steel surface and protects it from atmospheric corrosion, provided no break occurs in this coating.
From the chemical and physical analysis performed on the scrap, and according to the european environmental rules, the material has been classified as a special non dangerous waste, listed in green list
In particular the mill scale can be classified as follows:
Einecs (european commission no.): 266-007-8
Waste code: 10 02 10
Basel code: b 12 30
Hs code: 2619.00
GOLD Member
VERIFIED
Apr-16-21
Supplier From Faridabad, Haryana, India
We are exporter of Calcined Alumina.

According to different requirements, five series of products have been formed, including dry pressing, hot die casting, refractory, casting and setting, structural ceramic granulator, etc. It can be widely used in electronic equipment, structural ceramics, refractories, wear-resistant materials, polishing materials and other industries.
GOLD Member
VERIFIED
Jun-26-21
Supplier From Faridabad, Haryana, India
We are supplier and exporter of Calcined Alumina.

Calcined alumina can be used in the polishing of different alumina products(mainly used in middle, fine polishing).It is also widely used in high-class aluminium refractory material, unshaped refractory materials, high aluminium ceramic product and advanced coating, etc, . Item Al2o3 % Na2o % Sio2 % Fe2o3 % D50 A4m 99.8 0.1 0.05 0.02 3.1

Alumina (Al2O3), the industrial Al2O3 is prepared from alumina (Al2O3, 3H2O) and hard alumina, and the Al2O3, which is high in purity, is usually prepared by chemical methods. Al2O3 has many isomorphic crystals, and there are currently more than 10 known types, mainly three types of crystal, namely gamma-al2o3, beta-al2o3, alpha-al2o3.Which structure is different, with different properties in high temperature above 1300 s almost entirely into alpha Al2O3.
GOLD Member
VERIFIED
Dec-26-16
Supplier From Lucknow, Uttar Pradesh, India
GOLD Member
Dec-25-20
Supplier From Huizhou, Guangdong, China
Focus-6100 butyl tapes are mainly made of butyl rubber with excellent performance in waterproofing and sealing.
Main Specification
(Customized size is acceptable.) 3.0mm thickness
* 12mm width *15m roll length
2.5mm thickness * 8mm width * 15m roll length
2 mm thickness * 15mm width * 20m roll length
2.5 mm thickness * 8mm width * 20m roll length

Main Color
black, grey, white

Technical Data
Product Series FOCUS-6100
Application Composite Materials Industry
Elongation 500%
Heat Resistance 90, no flowing within 2h
Low Temperature Flexibility 40, no crack on surface within 24h
Peel Strength 23N/cm
Tensile Strength 220KPa
Anti UV non-hardening and no cracks within in 2000h
Corrosivity Non-corrosive to galvanizedsheet, aluminum sheet and coppersheet.

Advantages
Strong adhesion.
Wide application temperature range.
Excellent performance in waterproofing and sealing.
Applications

* During the production of vacuum extraction process for wind mill blade, it has excellent sealing property between vacuum bags and molds. During the production of vacuum extraction processfor fiberglass, it has excellent
sealing property between vacuum bags and molds.

* During the production of vacuum extraction process for cabin cover, it has excellent sealing property between vacuum bags and molds.

* As auxiliary materials, our Focus-6100 series are widely used in the production of wind mill blade, fiberglass, cabin cover, car tail bracket, automotive engine cover, yacht.

* Our products have excellent sealing property between vacuum bags and mold during the vacuum extraction process.
GOLD Member
Dec-25-20
Supplier From Huizhou, Guangdong, China
Adopting unique production technology, Focus- 6300 buytl tapes are mainly made of butyl rubber supplemented by other auxiliaries and fillers, with the superior high polymer materials. With its strong adhesion property and air-tight
property, our waterproof sealing butyl tapes are environmental and solvent-free. Main Specification (Customized demand sare acceptable.)
6mm*8m
8mm*6m
10mm*4.57m

Main Color - black

Technical Data
Product Series FOCUS-6300 Series
Application Automotive Industry
Elongation 500%
Heat Resistance 90, no flowing within 2h
Low Temperature Flexibility 40, no crack on surface within 24h Peel Strength 23N/cm
Tensile Strength 230KPa
Anti UV non-hardening and no cracks within in 2000h
Corrosivity Non-corrosive to galvanized sheet, aluminum sheet and coppersheet.

Advantages
Strong adhesion, high tensile strength, excellent elasticity and extensibility. It can fully accommodate to the surface that it attached to
Excellent performance in non-corrosive, weather resistance and
adaptation.
Applications
Provide waterproof
protection to car doors waterproof membrane. Provide waterproof and
sealing protection to the battery of new energy
automobile.

Other waterproof applications on cars and new energy cars

Verification Status