Q700 Galvanized Square Tube Inquiry –20×20/25×25mm and Actual Wall/Length Pairings
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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
Galvanized square tube has three actual pairings of0.5–6.5mm wall range with6m,6.4m and12m lengths. The20×20/25×25mm title sections require exact geometry selection.
Confirm the requested grade
Q700 title wording is not established by the Q235/Q345/S235-family references. Request actual composition, condition and mechanical tests before a high-strength material claim.
- Square section.
- Galvanized surface.
- Non-oiled description.
- 10×10 through25×25mm family.
- Cutting and bending services.
Define coating criteria
Z20–Z600 is a designation without verified mass units. Select actual process and zinc acceptance for the chosen tube.
Agree building-material inspection
Provide section, wall and connection requirements. Structural, fluid and boiler contexts do not establish member capacity, operating ratings or corrosion life without actual selected-grade and dimensional evidence.




