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Square Steel Tube is a welded structural grade tubing that is available in either type A513 or A500 Grade B, depending on it's size and wall thickness.Either grade is ideal for all structural applications, general fabrication, manufacturing and repairs. Steel Square Tube is widely used in industrial maintenance, agricultural implements, transportation equipment, truck beds, trailers, frames, etc.Structural Steel Pipe - A500 Round Structural Pipe black square steel pipe 100 100 80 60 astm a500ASTM A500 structural pipe is a standard specification for cold-formed welded structural tubing produced to round nominal pipe sizes. ASTM A500 is the most common specification in North America for Hollow Structural Sections. Since ASTM A500 is a structural specification, round pipe HSS produced to this specification is a fit for applications being used in structural applications and general black square steel pipe 100 100 80 60 astm a500User rating 5 5A500 Spec Sheet American Piping Products< h2>< svg>ScopeChina Black Square Steel Pipe Structure Steel Pipe - China black square steel pipe 100 100 80 60 astm a500Galvanized Pipe Square Pipe Black Steel Pipe for Furniture Steel Tubes & Pipes for Fluids gas,line pipe,structural pipe steel coil Scaffolding & its accessories Galvanized Iron Wire Angle Flat Channel I Beam of Construction Metal Materials Others Product Catalogs

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