Corten steel standards in different countries

Corten steel is a kind of alloy steel with key elements of Cu, Cr and there are different corten steel standards in different country.

Corten steel resists the corrosive effects of rain, snow, ice, fog, and other meteorological conditions by forming a coating of dark brown oxidation over the metal, which inhibits deeper penetration and negates the need for painting and costly rust-prevention maintenance over the years. Its unique look and naturally oxidizing finish make it especially desirable for many architectural projects.

Different country has different Corten Steel Standards for the corten steel, Basically the content of the key elements is similar to each other.

Corten steel standards in different countiry

USA	CHINA	JAPAN
ASTM	GB	JIS
	Q295GNH	SMA400AW
	Q295GNHL	SMA400BW
A690/A690M	Q345GNH	SMA400CW
	Q345GNH
	Q390GNH	SMA490AW
SS Grade 33[230]	Q235NH	SMA490BW
Type III	Q235NH	SMA490CW
Type III	0355NH	SMASTOW
Type I	Q460NH	SMAS7OP

In most decorative applications, corten steel standards are not so important. But pls pay more attentions when you apply it on Bridges and other projects that require more mechanical property。
If you need more technical data and supports, feel free send email to us.