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  • 2024-06-19

    1. Hand Tools: For small scale rust removal, hand tools such as wire brushes, sandpaper, or steel wool can be used to manually scrape off the rust.2. Power Tools: Angle grinders, sanders, or wire brushes attached to drills can be used for more efficient rust removal on larger surfaces or more stubbo
  • 2024-06-19

    1. Post-Weld Inspection: The pipe is first inspected to ensure that the weld is sound and meets the required specifications. Any defects or excess material is noted for subsequent removal.2. Grinding and Polishing: The weld bead and the surrounding area are then typically ground and polished using a
  • 2024-06-19

    1. Visual Inspection: This is the most basic method and involves a careful examination of the tube's surface by an inspector using natural light or with the aid of a flashlight. Defects such as scratches, dents, pitting, and corrosion can often be identified visually.2. Glossy Inspection: By applyin
  • 2024-06-19

    1. Material Composition: The chemical composition of the steel, including the percentage of carbon, manganese, silicon, phosphorus, sulfur, and other alloying elements, greatly affects the pipe's strength, toughness, and corrosion resistance.2. Grain Structure: The microstructure of the steel, which
  • 2024-06-19

    1. Prewashing the Pipes: If possible, pre-wash the steel pipes to remove any surface dust or contaminants before starting the plasma cutting process. This can be done with water or a suitable cleaning solution.2. Cleaning the Cutting Area: Ensure the area where the cutting will take place is clear o
  • 2024-05-31

    Implementation standards: China standard:GB8163-2008  American standard: API 5L、ASTM A106/A53German standard: DIN 1629 Grade: 20#、Gr.B、ST44Norminal Pipe SizeOD(MM)SCH40SCH80WT(MM)Piece weight (KG/M)unit priceFOB TIANJIN PORT (USD/TON)stock quantity(pcs)WT(MM)Piece w
  • 2024-05-29

    1. Improper adjustment of the straightening frameBending phenomenon: The erw steel pipe bends out from the sizing unit and is bent in one direction.2, Uneven thickness of the coilBending phenomenon: The bending phenomenon of the steel pipe is serious, and the bending direction of the steel pipe is n
  • 2024-05-29

    Tube billet heating temperature for the seamless tube manufacturer refers to the tube blank discharge temperature. It should be determined to ensure that the steel is subjected to the main deformation within the best range of plasticity. The basis for determining the heating temperature is the iron
  • 2024-05-29

    1. Material Composition: The elements added to steel, such as carbon, manganese, nickel, and chromium, can affect its toughness. For example, higher carbon content can increase hardness but may decrease toughness.2. Microstructure: The grain structure of steel, which is determined by the heat treatm
  • 2024-05-29

    1. Material Selection: Choosing the appropriate material for the seamless pipe fitting elbow based on factors like temperature, pressure, and corrosion resistance requirements.2. Heating: The raw material, usually a steel billet, is heated to a high temperature to make it malleable for shaping.3. Fo
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