Product Description

The strip is cut into narrow strips of steel, which are then moulded into tubes. A special welder then welds the seam together. External weld is polished. 

The inner burr of the general welded pipe is not played. Internal burrs are only used for precision welded pipes.

Main products: seamless square pipe, large diameter square pipe, galvanized square pipe, welded pipe, seamless steel pipe, boiler pipe, galvanized spiral pipe, galvanized seamless pipe, spiral pipe, shaped pipe


Product NameGalvanized weld Steel Pipe
Material10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35
Wall Thickness1MM~150MM
Outer Diameter6MM~2500MM
Length5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
StandardAPI5L,ASTM A53-2007,ASTM A671-2006,ASTM A252-1998,ASTM A450-1996,ASME B36.10M-2004,ASTM A523-1996,BS EN10296,BS6323,BS 6363
Grade10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52Grade A, Grade B, Grade C
TechniqueHot Dip Galvanized Round Steel Pipe
PackingBundle, or with all kinds of colors PVC or as your requirements
Pipe EndsPlain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
Surface Treatment1. Galvanized2. PVC,Black and color painting3. Transparent oil,anti-rust oil4. According to clients requirement


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1. Black parts inspection → hanging material → degreasing → rinsing → pickling → cleaning → dipping agent → hot air drying → hot dip galvanizing → inside and outside blowing → cooling → passivation and rinsing → unloading → inspection, dressing → typing labeling → packing into storage and transportation.

Galvanized strip → uncoiling → stretching → rolling → welding → scraping → passivation and rinse → zinc filling → shaping → typing mark → cutting → packing → drying → weighing.

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1. Low processing cost: the cost of hot-dip galvanized rust prevention is lower than that of other paint coatings.

2, good reliability: the durability of the coating is more reliable.
3, durable: hot dip galvanized steel pipe with surface gloss, uniform zinc layer, no leakage plating, no dripping, adhesion strong break net corps, strong corrosion resistance characteristics, in the suburban environment rose significantly, the standard hot dip galvanized rust thickness can be maintained for more than 50 years without repair; In urban and offshore areas, standard hot-dip galvanized rust protection can be maintained for 20 years without repair

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4, the toughness of the coating is strong: the galvanized layer forms a special metallurgical structure, which can withstand
mechanical damage during transportation and use.
5, comprehensive protection: every part of the plated parts can be plated with zinc, even in the depression, sharp corners and hidden places can be fully protected.
6, save time and effort: galvanizing process is faster than other coating construction method


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