rusted corten steel mesh for building facade cladding punching corten steel
| material | weathering steel (corten) | ||||||
| standard | GB/T4170 | TB/T 1979 | ASTM A588 | ASTM A606 | EN10025-5 | JIS G3114 | JIS G3125 |
| grade | Q235NH Q355NH Q355GH Q460NH | 09CuPCrNi-A | Grade K | Type 4 | S235J0W S235J2W S355J0W S355J2W S355J0WP S355J2WP | SMA400 SMA490 SMA570 | SPA-H |
weathering steel also known as corten, is widely used in garden screens, bridges, containers, facades, roadblock and sculptures with its long service, low maintenance costa and artistical patina | |||||||
Weathering steel is a steel with improved atmospheric corrosion resistance. It is generally used for structures requiring extended longevity under low maintenance conditions. The product is produced to standards such as ASTM A242, A588, A606 Type 4 and EN 10025-5. This product is commonly referred to as COR-TEN, the original US Steel version. Alloys with small amounts of Cu, Cr, Ni, Si and P results in a steel that develops a stable rust layer that adheres to the base metal and is much less porous than rust which develops on carbon steel. The rust ‘patina’ develops under condition of alternate wetting and drying cycles to produce a protective barrier relatively impervious to further atmospheric corrosion. The appearance, texture and maturity of this coating depend on three interrelated factor: time, degree of exposure and atmospheric environment.