Medical-grade stainless steel tubing: Processing and application requirements for stainless steel tubing

09 Sep,2020

Medical-grade stainless steel tubing: Processing and application requirements for stainless steel tubing

     According to the rolling process Medical-grade stainless steel tubing point For hot-rolled, hot-extruded, and cold-drawn (cold-rolled) stainless steel tubes. Depending on the microstructure of stainless steel, it mainly includes ferritic–martensitic stainless steel pipes, martensitic stainless steel pipes, austenitic stainless steel pipes, and austenitic… - Ferritic stainless steel pipes, etc.

      In terms of specifications, stainless steel pipes are primarily characterized by GB14975-94 Based on “Stainless Steel Seamless Pipes.” For hot-rolled pipes, the total length of thick-walled precision stainless steel pipes (with an indefinite length) is 1.5-10m , while the total length of the hot-extruded steel pipe is greater than or equal to 1m . The wall thickness of cold-drawn (cold-rolled) stainless steel tubes is 0.5-1.0mm , with a length of 1.0-7m . Wall thickness greater than 1.0mm The length of the pipe is 1.5-8m。

   Approximately 45 The diameter is 54-480mm Hot-rolled (hot-extruded) stainless steel pipes, totaling approximately 36 Type, with a wall thickness of 4.5-45mm . The diameter is 6-200mm Cold-drawn (cold-rolled) stainless steel tubes have 65 Species, with a wall thickness of 0.5-21mm There is/are 39 Species.

Medical-grade stainless steel tubing

      The inner and outer surfaces of precision stainless steel tubes and thick-walled tubes shall be free from cracks, wrinkles, fissures, splits, rolling marks, delamination, and scale. These defects must be completely eliminated (unless they are specifically intended for machining). Furthermore, after cleaning the stainless steel pipe wall, its wall thickness and outer diameter must not exceed the negative deviation. Some minor surface defects that do not exceed the permissible negative deviation cannot be eliminated.

   The allowable depth for stainless steel straight pipes is also required. Hot-rolled, hot-extruded steel pipes, with a diameter less than or equal to 140 millimeters and not greater than the nominal wall thickness 5 % of stainless steel pipes, with a maximum depth less than or equal to 0.5 millimeters, and the wall thickness of cold-drawn (cold-rolled) stainless steel tubes shall not exceed the nominal wall thickness by more than 4 %. Depth less than or equal to 0.3mm。

  That concludes the information compiled by the editor of Wuxi Precision Steel Pipe Co., Ltd. Please contact us if you have any inquiries.

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Medical Stainless Steel Tubing: Methods for Assessing the Quality of 304 Stainless Steel Tubing