Why is it called Corten?

Corten steel is a group of combined steel alloys that exhibit a high degree of corrosion resistance and tensile strength.
It was developed and introduced in the 1930s by the U.S. Steel Corporation (USS) to assist in the development of railroad coal wagons.
While typically written as corten, the official trademark name is COR-TEN, which refers to its specific qualities and properties, namely:
COR: Corrosion-Resistance
TEN: Tensile Strength

COR stands for corrosion resistance and TEN stands for tensile strength. (Today, while the terms Corten and COR-TEN are used interchangeably, COR-TEN® is a trademarked product of US Steel.) The steel was not introduced as an architectural metal, however, until the 1950s.

Garden Decorative Corten Steel Screens

 Corten steel room divider screen panels for garden