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InvoicingBy Theoretical WeightOiled or Non-oiledNon-oiled
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Section ShapeSquareSurface TreatmentGalvanized
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Tolerance±1%Alloy Or NotNon-Alloy
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ApplicationFluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe, OtherCertificateAPI , CE, BSI, RoHS, SNI, BIS, Saso, PVOC, SONCAP, SABS, SIRM, TISI, KS, JIS, Gs, ISO 9001
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Delivery Timewithin 7 daysGradeS235JR,S235JO,S235J2,SS330,SPHC, S185,CS Type B
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Processing ServiceWelding, Punching, Cutting, Bending, DecoilingSpecial PipeAPI Pipe, Other, EMT Pipe, Thick Wall Pipe
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StandardASTMTechniqueSaw
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Product nameGalvanized Square Steel PipeMaterialQ235/Q345/SS400/ST37-2/ST52/Q420/Q460/S235JR/S275JR/S355JR
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SurfaceZinc Coating Z20~Z600ShapeSquare, Rectangular,Round or Customized
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Length1-12m or CustomizedWall thickness0.5-6.5mm or customized
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Outer Diameter10x10mm, 15x15mm, 20x20mm, 25x25mm, etc or CustomizedMOQ1 Ton
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PackingStandard Seaworthy PackingUsageBuilding Construction
Q700 Hot Dip Galvanized Square Tube, 20x20 and 25x25 mm Requirements
Galvanized square steel tube has an actual 0.5–6.5 mm wall range or custom, combined with 6, 6.4, 12 m and customized length choices. Described sections include 20x20 and 25x25 mm.
Confirm exact Q700 material because the accompanying grade list identifies other structural steels. Choose the complete square or rectangular section and a feasible measured wall thickness rather than assuming every dimension can be combined. Define hot dip galvanizing acceptance separately.
The Z20–Z600 surface code has no area unit and requires interpretation before comparing zinc requirements. Non-oiled supply is described, but no numerical strength or pressure result is supplied. General construction, boiler and fluid uses do not establish a load rating, operating pressure or verified certificate for the selected tube.





