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The ASTM A139 Standard Specification for Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over) is a crucial reference for the manufacturing, supply, and use of large-diameter steel pipes. This specification covers electric-resistance-welded and electric-fusion-welded steel pipes, primarily used in pressure pipelines transporting water, petroleum, gas, and other liquids.
ASTM A139 outlines strict requirements for the material's chemical composition and mechanical properties to ensure pipes' durability, reliability, and safety. Grades B, C, and D specified in the standard are differentiated based on their yield strength and tensile strength, allowing for varied applications depending on specific project requirements.
The standard also provides guidelines for dimensions, tolerances, and permissible variations, ensuring consistency and uniformity in the pipes' physical characteristics. It specifies the test methods and frequencies to verify the conformance of the pipes to the required parameters, thereby guaranteeing their quality and integrity.
Overall, ASTM A139 serves as a benchmark for the production and evaluation of large-diameter steel pipes, promoting industry-wide consistency and facilitating international trade by providing a unified set of standards.
The ASTM A139 Standard Specification for Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over) is a crucial reference for the manufacturing, supply, and use of large-diameter steel pipes. This specification covers electric-resistance-welded and electric-fusion-welded steel pipes, primarily used in pressure pipelines transporting water, petroleum, gas, and other liquids.
ASTM A139 outlines strict requirements for the material's chemical composition and mechanical properties to ensure pipes' durability, reliability, and safety. Grades B, C, and D specified in the standard are differentiated based on their yield strength and tensile strength, allowing for varied applications depending on specific project requirements.
The standard also provides guidelines for dimensions, tolerances, and permissible variations, ensuring consistency and uniformity in the pipes' physical characteristics. It specifies the test methods and frequencies to verify the conformance of the pipes to the required parameters, thereby guaranteeing their quality and integrity.
Overall, ASTM A139 serves as a benchmark for the production and evaluation of large-diameter steel pipes, promoting industry-wide consistency and facilitating international trade by providing a unified set of standards.
