Q345 Galvanized Steel Pipe

Parameter	Specification
Material Grade	Q345 (Equivalent to ASTM A572 Gr.50 / EN10025 S355JR)
Chemical Composition	C: ≤0.20%, Mn: 1.00–1.60%, Si: ≤0.50%, P: ≤0.035%, S: ≤0.035%
Galvanization Type	Hot-Dip Galvanized
Zinc Coating Thickness	40 – 120 microns (as per requirement)
Outer Diameter (OD)	Typically 21.3 mm – 610 mm
Wall Thickness	3 mm (specified)
Pipe Length	5.8 m / 6 m / 11.8 m / 12 m (customized lengths available)
Surface Finish	Galvanized – corrosion-resistant, smooth finish
Tensile Strength	≥ 470 – 630 MPa
Yield Strength	≥ 345 MPa
Elongation	≥ 21%
End Type	Plain / Beveled / Threaded
Welding Type	ERW / LSAW / SSAW / Seamless (based on process)
Standards Compliance	GB/T1591-2018, ASTM A500, EN10210, EN10219
Applications	Heavy structural work, machinery, bridges, columns, supports, scaffolding, etc.

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