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Introduction:Galvanized steel pipe usually means the hot-dip galvanized steel pipe. To make the hot-dip galvanizing pipe, firstly do the pickling in order to remove the iron oxide on the surface of the steel pipe, then clean the pipes in the ammonium chloride or zinc chloride aqueous solution, and then put the pipes into Hot-dip galvanized bath, the galvanized layer can improve the corrosion resistance of steel pipe so as to extend the service life. Galvanized steel pipe is not only widely used in the field of water, gas, oil and other general low-pressure fluid pipeline, but also in chemical coking equipment such as oil heater, condensation Cooler, and the bridge piles such as mine tunnel support tube and so on.
Outside diameter：DN15-400mm
Wall thickness：2-5mm
National Standard：
GB / T3091-2015 low pressure fluid conveying welded steel pipe
GB / T13793-2008 Straight seam welded steel pipe
GB / T21835-2008 Size and weight of welded steel pipe
BS 1387-1985 screw steel tubes with BS21 Pipe thread
Material：BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52
ASTM A 53: Gr. A, Gr B, Gr C, Gr.D
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8
Length：Random length or cut length 6m
End: Plain end or threaded end
Surface: Hot dip galvanized, Electro galvanized
Test：Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield, strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
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