Compared to coating materials, weather-resistant steel is on average 5 times superior to copper-containing steel and 70 times superior to ordinary steel.
We present the results of a comparative test on the undercoating corrosion rate after one year of exposure for "COR-TEN," ordinary carbon steel, and 0.2% copper-containing steel that were painted. In this case, the surface treatment was phosphoric acid treatment, the primer used was a primer, and the topcoat was a urea alkyd paint. Additionally, the left photo shows the condition after 8 months of exposure, with a scratch made diagonally to break the coating on the same test piece. As a result, our product excelled in all tests, showing an average of 5 times better performance than copper-containing steel and 70 times better than ordinary steel when compared to the coating materials. *For more details, please refer to the PDF document or feel free to contact us.
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Chikuma Steel Co., Ltd. has been engaged in the sales of special steel and ordinary steel since its establishment, primarily handling products from Nippon Steel Corporation for fields such as construction machinery, railway vehicles, architecture, bridges, and environmental equipment. Moving forward, we will focus on strengthening our sales system for distinctive steel products, including Nippon Steel's high-strength steel plates WEL-TEN, weather-resistant steel COR-TEN, wear-resistant steel plates ABREX, and sulfuric acid and hydrochloric acid dew point corrosion-resistant steel plates S-TEN, while enhancing our processing technologies to sincerely and swiftly respond to the increasingly diverse and sophisticated needs of our customers.