Gr 22 is a type of steel plate that is commonly used in construction, engineering, and industrial applications. Here are some key properties and characteristics of Gr 22 steel: - Grade: Gr 22 - Material: Carbon Steel - Thickness: 4mm-150mm - Width: 1000mm-3000mm - Length: 3000mm-12000mm - Yield Strength: 22 ksi (152 MPa) - Tensile Strength: 45-65 ksi (310-450 MPa) - Elongation: 20% (min) - Impact Test: -20°C (optional) - Heat Treatment: As rolled or normalized - Applications: - Construction equipment - Industrial machinery - Automotive parts - General engineering - Structural steel - Features: - Good strength and toughness - Good weldability and machinability - Good corrosion resistance - Affordable price Gr 22 steel is known for its excellent strength, toughness, and weldability, making it a popular choice for various industrial applications. Note: Gr 22 is a designation from the American Society for Testing and Materials (ASTM), where: - Gr = Grade - 22 = Yield Strength (22 ksi) The exact composition and properties of Gr 22 steel may vary depending on the specific standard or specification being followed. It's worth noting that Gr 22 is similar to A36 steel, but with a slightly lower yield strength. However, both grades are commonly used in similar applications and have similar properties.