IPcorten

IPcorten is a trade name used for a family of weathering steel products marketed for outdoor architectural and artistic uses. The term is used by some manufacturers to denote panels, plates, sheets, and shapes that resemble or are based on weathering steel alloys (often compared to COR-TEN).

IPcorten products are designed to develop a stable, protective oxide layer when exposed to moisture and air, reducing the need for painting. The patina that forms is typically brown to reddish-brown in color and can vary with climate, humidity, and exposure conditions. The underlying steel contains alloying elements such as copper, chromium, and nickel, which promote the formation of the patina.

Use and limitations: Commonly used for facades, decorative screens, sculptures, and landscape features. Applications rely on durable, low-maintenance materials, but IPcorten surfaces can stain adjacent materials and may require sealing or drainage considerations. The initial rusting phase may impart surface staining and requires curing time before final finishing. In some jurisdictions, the use of weathering steels is governed by building codes and standards for structural or environmental performance.

History: Weathering steel was developed in the early 20th century, with COR-TEN being the best-known trademark; IPcorten appears in later commercial marketing as a similar concept.

See also: COR-TEN steel, weathering steel, patina, outdoor architectural metalwork.