Process: Steel Blackening
Application: A rust-preventive blackening agent for steel parts that serves as an alternative to traditional high-temperature alkaline blackening (or "bluing") processes. It offers advantages such as simple operation, ease of use, significant energy savings, flexible batch production capabilities, on-demand processing, and high efficiency. The process requires minimal time—simply immersing parts at room temperature—and yields a finish that is rapidly formed, corrosion-resistant, rust-proof, wear-resistant, and glossy.
This product is suitable for various types of steel, including cast iron, low-carbon steel (e.g., A3, Q195, Grade 45), high-carbon steel (e.g., Grade 60, 65Mn, 72A, 82B), 40Cr, and silicon steel. It is widely used for the blackening treatment of iron-based products across industries such as hardware machinery, springs, standard fasteners (screws), and valves.
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