Weathering steel, often referred to by the genericized trademark COR-TEN steel and sometimes written without the hyphen as corten steel, is a group of
Weathering steel, commonly referred to by the generic trade mark COR-TEN steel, sometimes written as weathering steel without the hyphen, is a group of steel alloys developed to eliminate the need for painting and to form a stable The rust-like appearance of years of exposure to the weather.
A588 Grade A weathering steel is a structural steel in ASTM A588/A588M standard. It is typically used in structural applications such as bridges and buildings. It is mostly used in dense populated areas as it is not very tolerant of open spaces.
The chemical composition of A588 Grade A weathering steel is composed of carbon, phosphorus, sulfur, silicon, copper, nickel, chromium, manganese, molybdenum, boron, and vanadium.
Carbon (C): 0.19%, Phosphorus (P) : 0.04%, Sulfur (S): 0.034%, Silicon (Si): 0.30%, Copper (Cu): 0.25%, Nickel (Ni): 0.40%, Chromium (Cr): 0.40%, Manganese (Mn): 0.75%, Molybdenum (Mo): 0.20%, Boron (B): 0.004%, Vanadium (V): 0.02%.
The unique combination of the chemical composition of A588 Grade A weathering steel makes it highly resistant to corrosion and oxidation, making it ideal for the most harsh weather conditions and industrial settings. Unlike many other alloys corrosion forms, it is not prone to cracking or flaking and retains its strength, shape and tensile strength even after excessive exposure to weathering and wear and tear. This gives it a great advantage over other metals that are prone to more serious forms of corrosion and oxidation.
The unique composition of A588 Grade A weathering steel also makes it heat resistant, an important factor in many industrial applications such as petroleum and chemical plants. Its excellent heat resistance also makes it an excellent choice for outdoor installations such as balconies, outdoor decks and structures that are often exposed to direct sunlight and harsh temperatures.
A588 Grade A weathering steel is able to withstand these extreme conditions and its unique chemical composition makes it ideal for outdoor structures and infrastructure requiring a highly durable and corrosion resistant metal.
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