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    The difference between precision hydraulic seamless steel pipe and seamless steel pipe

    The difference between precision hydraulic seamless steel pipe and seamless steel pipe

    (Summary description)German Standard Steel Pipe Co., Ltd. is a precision hydraulic steel pipe enterprise integrating production, research and development, and operation.

    The difference between precision hydraulic seamless steel pipe and seamless steel pipe

    (Summary description)German Standard Steel Pipe Co., Ltd. is a precision hydraulic steel pipe enterprise integrating production, research and development, and operation.

    Information

      German Standard Steel Pipe Co., Ltd. is a precision hydraulic steel pipe enterprise integrating production, research and development, and operation. The company's products, precision hydraulic seamless steel pipes, have always been trusted by customers. The difference between precision hydraulic seamless steel pipe and seamless steel pipe is: 1. The obvious difference from seamless steel pipe is: high dimensional accuracy, which can reach 0.1mm.

      2. The inner and outer diameters of precision steel pipes have high surface finish, and customers can use them directly without processing; while ordinary seamless steel pipes need customers to lathe, polish and other processing.

      ●Chemical composition of precision seamless steel pipe:

      Carbon C: 0.10~0.15 Silicon Si: 0.17~0.37 Manganese Mn: 1.10~1.60 Sulfur S ≤0.035 Phosphorus P: ≤0.035 Chromium Cr: 0.90~1.30 Vanadium V: 0.03~0.06 Molybdenum Mo: 0.32~0.40 Boron B: 0.002~ 0.006

      ●Mechanical properties of precision seamless steel tubes:

      Tensile strength σb (MPa): 868 Conditional yield strength σ0.2 (MPa): 713 Elongation δ5 (%): 17 Elongation δ10 (%): 11 Reduction of area ψ (%): 62 Impact toughness value αku (J/cm2): 5 Sample size: a certain sample

      ● Heat treatment specification and metallographic structure of precision seamless steel pipe: heat treatment specification: 900℃ normalizing, 600℃ tempering. Metallographic structure: tempered bainite + a small amount of tempered sorbite.

      Features

      1. The outer diameter is smaller.

      2. High precision can be used for small batch production.

      3. The cold-drawn product has high precision and good surface quality.

      4. The horizontal area of ​​the steel pipe is more complicated.

      5. The performance of the steel pipe is superior, and the metal is denser.

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