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Mild carbon steel black welded steel pipe is a steel pipe made of mild carbon steel, its surface is black, is the result of the natural iron oxide layer formed during the manufacturing process. This pipe is widely used in many industries due to its low cost, high durability, and suitable for low pressure and non-corrosive environments.
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Different types and grades of carbon steel tubes have different chemical and physical properties, and each type of carbon steel tube has different characteristics and application fields.
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ASTM A572 Grade 50 is a high-strength, low-alloy (HSLA) structural steel plate widely used in construction and industrial applications. While it is primarily designed for structural purposes, its high strength, good weldability, and excellent toughness make it a suitable material for certain boiler and pressure vessel applications when used within its specified limits.