Buyer resources
Steel Tube Standards, Size Charts & Buyer Guides
Practical references for preparing specifications, comparing quotations and identifying required trade documents.
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ASTM A500 Square & Rectangular Steel Tube Guide
A buyer-focused guide to ASTM A500 square and rectangular HSS, grades, dimensions, tolerances and RFQ inputs.
EN 10219 Square & Rectangular Hollow Section Guide
How to specify cold-formed EN 10219 SHS and RHS by grade, dimensions, wall thickness, length and inspection documents.
Square Tube Size & Weight Chart
Common SHS dimensions, wall thickness references and the information needed before weight and price comparison.
How to Request a Steel Tube Quotation
A practical RFQ checklist covering standard, size, grade, quantity, destination, documents and packing.
Export Documents and Trade Terms
FOB, CFR and CIF quotation inputs plus common export-document questions for steel tube orders.