Galvanized GI Round Iron Steel Tube | Construction Industry 12m and Coating Inspection Inquiry

• Invoicing

  By Theoretical Weight
  Oiled or Non-oiled

  Slightly Oiled
• Section Shape

  Round
  Surface Treatment

  Galvanized
• Tolerance

  ±1%
  Model Number

  HH04
• Alloy Or Not

  Non-Alloy
  Application

  Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe, Other
• Certificate

  API , CE, BSI, RoHS, SNI, BIS, Saso, PVOC, SONCAP, SABS, SIRM, TISI, KS, JIS, Gs, ISO 9001
  Delivery Time

  within 7 days
• Grade

  Q235B
  Outer Diameter

  3 - 700 mm(0.12-27.56in)
• Processing Service

  Welding, Punching, Cutting, Bending, Decoiling
  Special Pipe

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

  GB, AISI ASTM JIS DIN GB
  Product name

  Galvanized Steel Pipe
• Material

  Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35
  Technique

  Cold Drawn Hot Rolled
• Shape

  Round Pipe Tube
  Zinc layer thickness

  0.8-4.0mm or customized
• Diameter

  15-50mm or customized
  Wall thickness

  2-10mm or customized
• Packing

  Standard Seaworthy Packing
  Payment terms

  30%TT Advance + 70% Balance

Agree actual coating and dimension records before accepting round steel pipe for an industrial project.

Dimension consistency

The broad OD and narrower diameter descriptions differ, as do actual and described wall scopes. Select one compatible actual tube size with measured OD and wall rather than combining all listed endpoints.

Material and zinc layer

Q235B is listed with other steel grades, and zinc layer thickness is written as 0.8–4.0 mm. Confirm actual designation and coating meaning and units without automatically correcting the source figure.

• Actual steel designation
• Measured OD and wall
• Confirmed 12m length
• Zinc measurement and acceptance
• End and application inspection

Industry requirements

The actual length option is 12 m with fabrication services described. Define intended service and tests; construction, fluid and certificate wording does not establish structural capacity, pressure rating, coating life or approval of a finished installation.