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Hot Galvanized Pipe

Seamless & Welded Steel Pipe (Round/Square/Rectangular),Widely used in Structure, Accessorize,Construction,Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on.

Hot Dip Galvanizing Process

Material Inspection (Steel Pipe) — Hanging — De-greasing — Rinsing — Pickling — Washing — Dipping Fluxing — Hot Air Drying — Inside and Outside Hot-dipped Galvanizing Blow — Cooling — Passivation and Rising — Unloading — Inspection and Trimming — Type Identification — Packaging and Storing and Transportation


CommodityGalvanized Seamless Pipe
OD21.3mm ~ 406.4mm
thickness0.5mm ~ 20mm
length0.3mtr ~ 18mtr
materialQ195—Grade B, SS330, SPC, S185Q215—Grade C,CS Type B, SS330, SPHCQ235—Grade D, SS400, S235JR, S235JO, S235J2Q345—SS500, ST52
StandardGB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88BS1387/1985,ASTM A53/A36,EN39/EN10219,API 5L,GB/T9711.1-99 etc
zinc coatingpre galvanized steel pipe: 60-150g/m2hot dipped galvanized steel pipe:200-400g/m2
applicationWidely used in Structure, Accessorize,Construction,Fluid transportation,machinery parts,the stressparts of the automobiletractor parts and so on
Package1   Big OD: in bulk
2   Small OD: packed by steel strips
3   Plastic bags
4  According to customer’s requirement
advantage1. reasonable price with excellent quality2, abundant stock and prompt delivery3, rich supply and export experience, sincere service



Element MaterialChemical Composition%Mechanical Property

C%Mn%S%P%Si%Yield Point (Mpa)Tensile Strength (Mpa)Elongation (%)
Q1950.06-0.120.25-0.50<0.050<0.045<0.30>195315-43032-33
Q2150.09-0.150.25-0.55<0.05<0.045<0.30>215335-45026-31
Q2350.12-0.200.30-0.70<0.045<0.045<0.30>235375-50024-26
Q345<0.201.0-1.6<0.040<0.040<0.55>345470-63021-22


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