Steel Tube for Precision Machining Components

• Invoicing

  By Actual Weight
  Oiled or Non-oiled

  Non-oiled
• Section Shape

  Round
  Surface Treatment

  Cold Rolled
• Tolerance

  ±1%
  Alloy Or Not

  Non-Alloy
• Application

  Fluid Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe
  Certificate

  API , ISO 9001
• Delivery Time

  8 ~ 14 days
  Grade

  stainless steel
• Outer Diameter

  219 - 1066 mm(8.62-41.97in)
  Special Pipe

  API Pipe, Other, EMT Pipe, Thick Wall Pipe
• Standard

  ASTM
  Technique

  ERW

This steel tube listing targets precision machining components with DIN 2391, St35, bright and seamless references. The table instead gives stainless steel and ERW. Confirm actual supplied material, construction and finish before selecting stock or accepting a precision level for the component represented by the order.

Resolve St35 and actual production requirements

Request the material specification, grade, condition, traceability and inspection records to resolve the St35 and stainless wording. Establish seamless or ERW construction through actual manufacturing evidence. Cold Rolled does not determine the initial route or certify the dimensions and material condition of the supplied stock.

Identify the DIN 2391 edition and product scope required by the project, clarifying its relationship to the generic ASTM table entry. Obtain actual conformity documentation rather than treating the references as equivalent supplied certification. API and ISO 9001 labels do not establish acceptance of a precision-machined component.

Specify bright finish and machining dimensions

The original image shows wrapped bundles, so it cannot demonstrate the exposed finish or roughness. Define the actual Bright surface requirements, inspection criteria, Non-oiled supply and preservation. Do not infer cleanliness, polished condition or finish performance from packaging or an application word in the title.

The options provide a 6–20 mm thickness range with 6 m or 12 m lengths. Specify selected wall, outside diameter, bore, straightness and roundness with machining allowances and accepted tolerances. The 219–1066 mm diameter range and ±1% entry need actual values, dimensional scope and a defined measurement basis.

Approve stock against the actual component duty

Provide the part drawing, mating geometry, loads, cycles, environment and processing requirements. Assess the confirmed material, route, dimensions and finish against that machining project. Agree material and dimensional inspections, surface checks and required mechanical tests with explicit criteria, then confirm documentation, marking, protection and delivery before approving the supplied stock.