Addressing the "Hidden Pains" of Medium to High Carbon Steel Heat Treatment: The Solution of Anti-Decarburization and Easy Descaling Coatings
In the fields of steel metallurgy and heat treatment, medium to high carbon steels often face challenges related to decarburization and descaling during heating. Decarburization refers to the reaction of carbon elements on the steel surface with oxidizing atmospheres at high temperatures, leading to a reduction in carbon content and the formation of a decarburized layer. This not only weakens the surface hardness and wear resistance of the steel, affecting its mechanical properties, but also results in degraded surface quality and may even cause defects such as micro-cracks. Difficulties in descaling present another major challenge. The iron oxide scale formed at high temperatures is dense and strongly adhered, making high-pressure water descaling less effective and increasing the need for subsequent grinding processes, particularly in bearing steels, where the tight bonding of the decarburized layer and scale further exacerbates surface quality issues. These problems not only prolong production cycles and increase energy consumption but also impact furnace lifespan.

Xingyi New Material's Anti-Decarburization and Easy Descaling Coating: An Efficient Solution
Xingyi New Material Technology (Chengdu) Co., Ltd., a specialist in high-temperature oxidation-resistant coating technology, offers a professional high-temperature anti-decarburization and easy descaling coating. This is an environmentally friendly water-based slurry, composed of minerals, metallurgical ore powders, and high-temperature composite binders, designed to address the challenges of decarburization and descaling in medium to high carbon steel heat treatment.
The core technology of this coating lies in its dual protective mechanisms:
? Molten Film Isolation and Interface Carbon Potential Stabilization: After application to the surface of medium to high carbon steel, the coating sinters at high temperatures to form a dense film layer that blocks oxygen penetration and modifies the structure of the oxide layer, achieving 50-90% anti-decarburization effectiveness. For some steel grades, the fully decarburized layer can even be reduced by over 90%.
? Easy Descaling特性: Unlike many anti-decarburization coatings on the market, this coating performs excellently in high-pressure water descaling and does not easily adhere to billets. Its protective mechanism modifies the oxide layer structure, significantly improving descaling efficiency by 40%-70%.

Application Value: Visible Cost Reduction and Efficiency Improvement
Applying Xingyi New Material's anti-decarburization coating can bring significant economic and technical benefits to medium to high carbon steel heat treatment enterprises:
? Reduced Grinding Intensity: In practical cases, when used in the heat treatment of alloy tool steels, the decarburized layer is significantly reduced, lowering the workload for subsequent grinding.
? Improved Product Quality: By effectively suppressing decarburization and enhancing descaling效果, the coating can markedly improve the surface quality of steel, reduce defects, and thereby increase product qualification rates and first-grade rates by over 50%.
? Wide Applicability: This coating is suitable for various steel grades, including eutectoid steel, hypereutectoid steel, carbon tool steel, bearing steel, and die steel, and remains effective even at high temperatures up to 1350°C.
Usage Methods and Precautions
This product is packaged in two components. Before use, the powder and liquid must be thoroughly mixed and stirred at a weight ratio of 1:0.7. Application is simple and can be done via spraying or brushing, with a recommended dosage of 0.5-1 kg/m2. Before coating, ensure that impurities, dust, and oil stains are removed from the billet surface to guarantee coating effectiveness.
The anti-decarburization and easy descaling coating produced by Xingyi New Material Technology (Chengdu) Co., Ltd. has been validated by multiple rolling mills, helping to optimize rolling processes and enhance overall production efficiency and economic benefits.