Is Corten Steel And Weathering Steel The Same Thing?

Corten steel and weathering steel belong to the same family of steels. They are both known as atmospheric corrosion resistant steels. However, there are still the following differences:

First let's look at the difference in names between Corten steel and Weathering steel:
Corten steel is also called Cor ten, Cor-ten, Cor 10, Cor-T. Weathering steel is also called weathering steel and is a type of weathering steel. Weathering steel is also called weathering steel and is a type of weathering steel. Like GB (China), JIS (Japan), En (Europe), ASTM (USA) ......

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Let's take a look at the history of Corten steel and weathering steel.
From the beginning of the 20th century to the present day, the United States, Germany, the United Kingdom and Japan have conducted in-depth research on weathering steel. As early as 1900, scientists in Europe and the United States discovered that copper could improve the corrosion resistance of steel in the atmosphere, and in 1916, the American Society for Testing and Materials (ASTM) began research on atmospheric corrosion. in the 1930's, U.S. Steel was the first to develop Corten steel, a high-strength, corrosion-resistant, low-alloyed steel that contained copper, and in the 1960's, Corten steel was used directly in buildings and bridges in its unpainted form. The most commonly used steels are A-series steels, which contain high levels of phosphorus, copper, chromium and nickel, and B-series steels, which contain chromium, manganese and copper alloys.

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After that:
In the 1961s, China began trial production of 16MnCu weathering steel.
In the 1965s, China started to produce 09CuPTi thin weathering steel plates and built the first weathering steel bridge in Japan.
In the 1967s, China used weathering steel in vehicles for the first time.
In 1968, Japan drafted the JIS63114 standard for hot rolled weathering steel for welded structures.
In the 1969s, Germany started to use bare weathering steel.
In 1972, the United Kingdom started to use bare weathering steel.
In the 1983s, Japan developed Sm AOOP coated weathering steel.
In the 1984s, China drafted the GB standard for high weathering structural steel.
In 1988, China developed NH-35q weathering steel for bridges.
In 1999s, China developed JT series weathering steel for tower and mast structure.

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Finally, there is a performance difference between Corten steel and weathering steel.
There are two series of weathering steels: Corten A is mainly used for railroad vehicles and is similar to the Chinese standard 09CuPCrNi. Weathering steels refer to all series of atmospheric corrosion-resistant steels, including the Corten series, the welded structural series, the high-weathering structural steels, the sulphuric acid dew-point corrosion-resistant steels, the bridge weathering steels, the railroad vehicle weathering series, and the container corrosion-resistant weathering steels.