ASTM A213 is a specification standard for seamless ferritic and austenitic alloy steel tubes, commonly used in high-temperature applications such as boilers, superheaters, heat exchangers, and other industrial processes that require superior resistance to heat, pressure, and corrosion.The standard covers a wide range of alloy steel and stainless steel grades, each with its specific properties tailored to meet the requirements of various high-performance environments.
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904L stainless steel pipe and fittings are non-stabilized, low-carbon high alloy austenitic stainless steel. It is commonly used in applications where the corrosion resistance of 316L and 317L stainless steels is insufficient. The addition of copper to 904L enhances its resistance to strong reducing acids, particularly sulfuric acid. It also offers excellent resistance to chloride attack and stress corrosion cracking.
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316 stainless steel pipe is a versatile and widely used austenitic chromium-nickel stainless steel that incorporates molybdenum. This addition of molybdenum significantly enhances its corrosion resistance, particularly against pitting and crevice corrosion in chloride environments, making it superior to 304 stainless steel in many harsh applications.
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ASTM A193 Grade B8 Class 2 Stud Bolts are high-strength stainless steel fasteners designed for high temperature and high-pressure applications, commonly used in pressure vessels, flanges, valves, and pipeline systems in the petrochemical, oil & gas, and power generation industries.
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The 20# Steel 45-Degree Elbow is commonly used in piping systems to change the direction of flow by 45 degrees. Given the properties of 20# carbon steel, this elbow is suitable for low to medium pressure applications where corrosion resistance and high temperature strength are not critical.
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Shanghai Zhucheng supplies 20 inch ASTM A106 Grade B carbon steel seamless pipes for oil pipeline in Libya. These pipes are combined with valves and loaded into 40HQ. The surface can be done with blasting and painting, hot dip galvanized and PE coating.
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