Product introduction
Pink fused alumina is an artificial abrasive made of high-purity aluminum oxide as the main raw material, with a small amount of chromium oxide added, and crystallized by high-temperature melting. Its crystals are pink and have high hardness. They are widely used in grinding carbon steel, alloy steel, stainless steel and high-hardness materials.
Product features
High Hardness
The main component of aluminum oxide in pink fused alumina is added with an appropriate amount of chromium oxide to form a solid crystal structure, making its Mohs hardness as high as 9, and it is not easy to passivate when grinding hard materials such as metal, stainless steel, carbon steel and alloy.
Strong Thermal Stability
The melting point of pink corundum is as high as 2050℃. It is not easy to deform or soften under conditions of high-speed grinding, dry grinding and other conditions accompanied by severe friction and high temperature.
Uniform Particle Distribution
Pink fused alumina adopts a fine screening process, and the particle size error is controlled within ±1 mesh, so that it can form a more uniform contact surface during the grinding process, reduce scratches and grooves, and is suitable for fine polishing or mirror processing.
Strong Chemical Stability
Pink corundum has stable chemical properties, is resistant to acid and alkali corrosion, and is not easy to react with processing media or workpieces. It is suitable for wet grinding, oil grinding and scenes with active additives.
product Application
Metal Surface Grinding
Pink fused alumina can be used to grind hard metal materials such as carbon steel, stainless steel, and alloy steel.
Ceramic And Glass Product Processing
Pink fused alumina can be used to cut and grind brittle materials such as ceramics and glass.
Mold Manufacturing Polishing
Pink fused alumina is suitable for the polishing process of high-hardness materials such as mold steel and tool steel.
Aerospace Parts Grinding
Pink corundum is often used for precision grinding and deburring of aviation parts.
Bearing And Precision Mechanical Parts Processing
Pink corundum can be used for external cylindrical grinding, internal hole grinding and end face grinding of precision parts such as bearings, gears, and screws.
|
Code |
Grit Size |
Chemical Composition % |
|||
|
Al2O3 % |
Na2O % |
Fe2O3 % |
Cr2O3 % |
||
|
Low Chromium (20PA) |
12#-80# |
≥98.50 |
≤0.50 |
≤0.10 |
0.20-0.45 |
|
90#-150# |
≥98.50 |
≤0.55 |
≤0.10 |
||
|
180#-220# |
≥98.00 |
≤0.60 |
≤0.10 |
||
|
Medium Chromium (45PA) |
12#-80# |
≥98.20 |
≤0.55 |
≤0.10 |
0.45-1.00 |
|
90#-150# |
≥98.20 |
≤0.60 |
≤0.10 |
||
|
180#-220# |
≥97.80 |
≤0.70 |
≤0.10 |
||
|
240#-1500# |
≥97.80 |
≤0.70 |
≤0.10 |
||
|
High Chromium (45PA) |
12#-80# |
≥97.40 |
≤0.50 |
≤0.10 |
1.00-2.00 |
|
90#-150# |
≥97.00 |
≤0.55 |
≤0.10 |
||
|
180#-220# |
≥96.50 |
≤0.60 |
≤0.10 |
||
Physical Property:
|
Basic minerals |
Crystal size(um) |
True density(ɡ/cm³) |
Bulk density(ɡ/cm³) |
Hardness( kg/mm²) |
|
α-Al2O3 |
600-2000 |
≥3.90 |
1.40-1.95 |
2200-2300 |
- Standard: FEPA – F (bonded abrasive application), FEPA - P (coated abrasive application), JIS Standard.
- Grit Available: F12 – F220 (Macro), F240 – F1500 (Micro powder)
P24 – P220 (Macro), P240 – P2500 (Micro powder)
JIS 12# – 4000#
- For refractory: 0-1mm, 1-3mm, 3-5mm, 0-10mm, -70F, -100F, -325F.
- Other grain sizes on requests are available.
company strength
Faster Abrasive is a professional manufacturer of the abrasive materials in China. We focus on providing the good stable quality abrasive materials and related abrasive tools with competitive price. More than 23 years experience in the abrasive industry, we will be your reliable and trustable partner.
Diverse Product Line
Our company specializes in manufacturing a full range of abrasive products, including grinding wheels, cutting wheels, flap discs, flap wheels, fiberglass discs, backing pads, abrasive cloth, abrasive paper, and ceramic parts.
Certified Quality Management
Our company has passed ISO9001:2015 quality management system certification, ensuring stable product quality and standardized production processes.
Global Market Coverage
Our abrasive products are exported to the United States, Japan, Europe, South America, Asia, and many other regions worldwide.
Strong R&D and Customization Ability
We are equipped with automatic flap disc lines, precision molding machines, and curing ovens. Our 15-person R&D team supports full customization of grit size, backing material, label, and packaging.
Timely Supply and Delivery
With an annual capacity of 30 million flap discs, we ensure stable supply for both large and small orders. Standard delivery takes 7–15 days, and urgent orders can ship within 3–5 days.
FAQ
Q: The Free Samples are available?
A: Yes, we can supply samples with free of cost.
Q: How many days for samples?
A: It's 7~10 days for regular size we have.
Q: How many days for production?
A: It's about 15~30 days according to the size and quantity.
Q: Could we put our own logo on the packing bags?
A: Sure, customers logo can be printed on the packing.
Q: What are the main chemical components of pink fused alumina?
A: The main component of pink corundum is aluminum oxide (Al₂O₃), which is usually above 98.5%, and contains trace amounts of chromium oxide (Cr₂O₃), which makes it appear pink or light red.
Q: What materials are suitable for pink fused alumina?
A: Pink corundum is suitable for grinding and polishing a variety of hard or brittle materials such as carbon steel, alloy steel, stainless steel, mold steel, high-speed steel, ceramics and glass.
Q: What is the hardness of pink corundum?
A: The Mohs hardness of pink corundum is about 9, and the Vickers hardness is above 2000 HV. The hardness is higher than that of white corundum, and it can withstand continuous use under high-pressure and high-speed grinding conditions.
Q: What is the particle shape of pink corundum?
A: Pink corundum presents a blocky, sharp-angled particle shape with sharp edges, which helps to enhance cutting force and grinding efficiency.
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