ASTM A606 Type 2 Weathering Steel Plate is a high strength, low alloy hot and cold rolled steel sheet or strip with improved atmospheric corrosion resistance.
1. Weathering resistance: ASTM A606 Type 2 steel plates form a protective oxide layer when exposed to atmospheric conditions. This rust layer prevents further corrosion, making it unnecessary to protect it with a coating.
2. High strength: Compared with conventional carbon steel, it has higher yield strength and tensile strength, suitable for structural applications that require high strength.
3. Low maintenance: Due to its superior weathering resistance, it reduces the need for frequent painting and maintenance.
4. Aesthetics: After the rust layer is formed, the surface presents a unique bronze color, which makes it aesthetically valuable in architectural and artistic design.
ASTM A606 Type 2 Weathering Steel Plate is a weathering steel designed for use in structural and architectural applications exposed to the atmosphere. It improves weathering resistance by adding alloying elements to the steel, making it perform well in harsh environments.
ASTM A606 Type 2 Performance Characteristics:
High Strength: ASTM A606 Type 2 steel plate has high tensile strength and yield strength, which can meet the strength requirements of various structural parts.
Corrosion Resistance: The steel plate has enhanced atmospheric corrosion resistance and can be used for a long time in various natural environments without additional anti-corrosion treatment. Its corrosion resistance mainly comes from the dense oxide layer naturally formed on the surface of the steel plate, which can protect the inside of the steel plate from corrosion.
Alloying Elements: According to the ASTM A606 standard, the copper content of Type 2 steel plate is a minimum of 0.20% based on casting or thermal analysis (the copper content is a minimum of 0.18% when the product is inspected). The copper element is one of the key factors in enhancing the atmospheric corrosion resistance of steel plates.
Typical chemical compositions of ASTM A606 Type 2 steel plates are as follows:
Carbon (C): ≤ 0.22%
Manganese (Mn): 0.20 – 0.60%
Phosphorus (P): ≤ 0.035%
Sulfur (S): ≤ 0.04%
Silicon (Si): 0.25 – 0.75%
Nickel (Ni): 0.30 – 0.65%
Chromium (Cr): 0.40 – 0.65%
Copper (Cu): 0.25 – 0.40%
Mechanical Properties
Yield Strength: ≥ 50 ksi (345 MPa)
Tensile Strength: 70 – 90 ksi (483 – 621 MPa)
Elongation: 20% (on 2-inch [50mm] specimens)
1. Construction and bridges: Applicable to building exterior walls, roofs, bridges and other structures that require corrosion resistance.
2. Transportation: Used in railway vehicles, truck carriages, etc. to extend service life.
3. Garden and landscape design: Used in sculptures, flower beds and other outdoor facilities, combining beauty with durability.
4. Industrial equipment: Manufacture containers, pipes and other industrial equipment that require corrosion resistance.
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