enLanguage
Low-sodium White Corundum
video
Low-sodium White Corundum

Low-sodium White Corundum

White Fused Alumina (WFA) is a high-grade synthetic corundum produced from high-quality alumina powder through smelting and crystallization in an electric arc furnace at temperatures above 2000℃. It features dense structure, high hardness, and sharp angular particles, making it suitable for high-end refractories, ceramics, resin-bonded abrasives, grinding, polishing, sandblasting, precision casting (special corundum for investment casting), and more.
Low-sodium white fused alumina is produced by targeted removal of sodium impurities on the basis of standard white fused alumina. Compared with high-purity white fused alumina (Al₂O₃ ≥ 99.9%), it is a more cost-effective alternative.
Send Inquiry
Description

Product Features

 

Today, as requirements for materials in high-end manufacturing and extreme working conditions become increasingly stringent, standard white fused alumina often cannot meet certain extreme application demands, while using high-purity white fused alumina (Al₂O₃ ≥ 99.9%) greatly increases costs. Our low-sodium white fused alumina was developed to solve this pain point as an optimal cost-performance choice.


Sodium oxide in white fused alumina reacts during smelting to form sodium aluminate, reducing the formation of α-Al₂O₃ and impairing performance.


We produce low-sodium white fused alumina by selecting low-sodium alumina raw materials and extending smelting time.


According to GB/T 2479-2008 Common Abrasives – White Fused Alumina, Na₂O content shall be below 0.40%. Our low-sodium grade controls Na₂O below 0.25%.


Compared with standard white fused alumina, low-sodium white fused alumina provides:

  • Higher hardness and grinding force
  • Excellent high-temperature volume stability
  • Superior slag corrosion resistance
product-800-800

 

Recommended Applications

 

1.Products for ultra-high temperature environments (above 1700℃), including ultra-high temperature saggers, kiln furniture, push plates


2.High-grade refractory materials


3.High-grade grinding wheels and abrasives (grinding ratio increased by 20% compared with standard WFA)


For enterprises pursuing long service life, high grinding efficiency, and high-temperature stability, although low-sodium white fused alumina has a slightly higher initial purchase cost than standard grade, the improvement in end-product quality will bring you far greater returns than expected.

product-800-800

 

Product Parameters

 

Item

Grade

Specifications

Remarks

Low-Sodium White Fused Alumina

LP-BGY-A-02

8-5/5-3/3-1/1-0

sodium content≤0.25%

F8#-F220#

200#-325#

 

Chemical Composition

Item

AI2O3(%)

Na2O(%)

SiO2(%)

Fe2O3(%)

Low-sodium grade

>99

≤0.25

<0.1

≤0.05

 

Packaging Specifications

 

1.25KGS/PVC bag
2.1MT/big bag
3.25KGS/PVC bag, 40 bags/big bag
4.1MT/big bag with pallet
5.Other customized packages available

 

Company Advantages

 

Our company is a professional enterprise engaged in the production, development, and sales of series products such as white corundum, low-sodium white corundum, and calcined alumina. It has a sound management system and advanced crushing and granulating equipment, forming an integrated industrial chain structure covering pre-treatment of alumina raw materials, smelting, crushing, granulating, and micro-powder production. The products are mainly sold to Guangdong, Jiangsu, Henan, Hebei, Northeast China and other regions, and are also exported overseas. The company has a prominent position in the industry and possesses strong market competitiveness and development potential.

1
product-800-449
product-800-449
product-800-1000
product-800-1000

 

FAQ

 

Q: What's the difference between White and Brown Alumina? Which one should I choose?

A: White Alumina is harder and purer (99%), ideal for fine grinding/polishing stainless steel. Brown Alumina is tougher, best for rough grinding/sandblasting. Not sure? Tell us your workpiece material, and we'll recommend the best fit.

Q: What is the nature of your company?

A: We are an established manufacturing entity with 22 years of deep industry expertise. As a true producer, we offer not just products, but packaging solutions backed by extensive experience. With our own production lines and QC teams, we maintain full control over every order detail, making us a stable and long-term partner for your business.

Q: What are the payment methods?

A: Telegraphic transfer is generally used.

Q: Do the Jumbo Bags come with pallets? What are the pallet standards?

A: Jumbo Bags can be shipped loose or on pallets. If palletized, we typically use standard Euro-pallets (1200x800mm) or US-standard pallets (1200x1000mm), secured with heavy-duty wrapping to ensure safe transit.

Q: Can you provide custom packaging if standard sizes don't meet my needs?

A: Absolutely. We support fully customized packaging solutions, including specific net weights per bag, material requirements (e.g., moisture-proof, anti-static), and special consolidation methods. Please let us know your specific requirements, and we will provide a tailored solution.

 

Hot Tags: low-sodium white corundum, China low-sodium white corundum manufacturers, suppliers, factory

Send Inquiry

(0/10)

clearall