| After-sales Service: | Bending,Welding,Cutting,Decoiling |
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| Type: | Welded |
| Technique: | Cold Drawn |
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Galvanized steel pipe is a welded steel pipe with a hot-dip galvanized or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipes in the petroleum industry, especially in offshore oil fields, as well as oil heaters and condensers in chemical coking equipment. Pipes for coolers, coal distillation washing oil exchangers, and pipes for trestle piles and supporting frames of mine tunnels, etc.
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Characteristic
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Hot-dip galvanized pipe
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Pre galvanized pipe
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Coating thickness
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The minimum average requirement in BS EN ISO 1461 is a thick coating of 45-85μm
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The coating thickness may vary, but the coating thickness of plate is usually about 20μm, and the coating thickness of pipe and
wire is usually about 20-30μm |
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Continuous coating
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Apply continuous coating to the entire object
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Cutting edge uncoated area
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Coating bonding
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Strong metallurgical bonding with the base steel
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Strong metallurgical bonding with the base steel
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Coating formability
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It is not recommended to form after hot-dip galvanizing as this may damage the coating
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Thin coatings can form normally without causing any damage
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Coating appearance
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Usually bright, but variable
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Usually achieving uniform brightness
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Wear resistance
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The thicker hard zinc iron alloy layer has high wear resistance
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Thin alloy layer reduces wear resistance
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Sacrificial protection
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Provide the highest level of sacrificial protection
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Sacrificial protection is reduced due to thin coating and certain uncoated areas (cutting edges)
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Commodity
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Galvanized steel rectangular pipe
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Grade
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Q195, Q235, Q235B, St37-2, St52, SS400, STK500, ASTM A53, S235JR
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Standard
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GB/T3091, ASTM A53, JIS G 3444, BS 1387
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Technique
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Hot Rolled, Cold Drawn
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Type
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HDG, ERW, Pre-Galvanized Pipe
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Size
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Square Range : 20*20mm-400*400mm, Rectangular Range:10x20mm--200*300mm
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Thickness
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0.8mm - 6mm
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Length
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5.8m,6m,11.8m,12m, 4-12m or as required
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Pipe Fittings
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Threaded, Coupling, Caps, Flange, etc
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Zinc Coating
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60g/m2-400g/m2
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Delivery Time
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Ready stocks 3-7 days, customized 7-10 days for customized size
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Application
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Water pipe, Low fluid transportation, Scaffolding pipe, Greenhouse pipes
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Export To
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Singapore, Canada, Indonesia, Korea, USA, UK, Thailand,Saudi Arabia, Vietnam,India, Peru, Ukraine ,Brazil,South Africa, etc.
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