Product

StandardSt37-2St52-3Q235BQ355BGIPipe500mmGalvanizedRoundTube0.2-8.9mmZincCoatedSteelTube
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Standard St37-2 St52-3 Q235B Q355B GI Pipe 500mm Galvanized Round Tube 0.2-8.9mm Zinc Coated Steel Tube

Telephone:

IMG_256

Key Attributes

Invoicing

By Actual Weight

Product name

Galvanized Steel Pipe

Section Shape

Round

Surface

Galvanized Coating

Tolerance

± 1%

MOQ

1tons

Grade

St37-2 St52-3 Q235B Q355B

Special Pipe

API Pipe, Other, EMT Pipe, Thick Wall Pipe

City

Tianjin

Sample

Sample Freely

Technique

ERW

Payment terms

30%TT Advance + 70% Balance

Brand Name

Tianjin Shenzhoutong

Usage

Construction Structure

Hot dip galvanizing process:
Workpiece degreasing → washing → pickling → washing → drying solvent dip fluxing preheated hot dip galvanized → cooling →finishing → rinsing → drying → passivation test

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Advantages of galvanized pipes are following below:

 

Firstly, galvanized pipe after being hot dip galvanized surface can be protected, and inside the cavity of the pipe or any other coating the corner is difficult to enter, deepen the zinc can easily cover to the top, make whole galvanized pipe can be protected.
Second, after being galvanized pipe galvanized its impact resistance and anti-wear properties are very good, because the zinc coating hardness values larger than the hardness of steel, and therefore the impact resistance of hot-dip galvanized after and abrasion resistance is quite good. Furthermore galvanized biggest advantage is in the corner of the zinc layer will be relatively thick and good toughness and abrasion resistance, while other coatings are often in this corner of the thinnest most difficult construction, and therefore are vulnerable injury.
Third, there is a major feature of hot-dip galvanizing that is occasionally subject to considerable mechanical damage or other causes a small portion of the zinc layer off, the iron-based nudity, then it will play around the zinc layer and other coatings not the same spirit of sacrifice to protect the steel here, so from erosion.
Finally, the hot-dip galvanizing and other aspects of life and aesthetics of art, life expectancy is in a particular environment, the main agency of the thickness of the coating, and the coating thickness of it but also by the thickness of the galvanized pipe and decisions, and therefore thicker galvanized pipe is more easily coating. Second, in terms of aesthetics and art, at the time it is certain severe corrosive environments, galvanized layer above Zaishi paint to deal with, as long as the selection of the correct paint system, easy construction of its anti-corrosion effect will be very good.

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Specification

Application

Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe

Section Shape

Round

Length

Length:Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual requested

Surface:

galvanized, zinc coated 15-700g/sqm

Material

10#, 20#, 45#, 16Mn, A53(A, B ), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35

Size:

21-609.6mm or customizable

Thickness:

1.4 - 14mm

Pipe Ends

Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.

Technology

Hot Dip Galvanized Round Steel Pipe

Standard:

API 5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS
6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711 etc

Hot dip galvanizing process:
Workpiece degreasing → washing → pickling → washing → drying solvent dip fluxing preheated hot dip galvanized → cooling →finishing → rinsing → drying → passivation test

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Packing & Delivery

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