Introduction:

Galvanized steel pipes are made of steel that has been covered with a layer of zinc metal. During the galvanizing process. We immerse the steel in a molten zinc bath ensuring a tough uniform barrier coating.
It is widely used in the construction industry, but can also be found in a variety of manufacturing and industrial applications. In plumbing systems, steel pipe can be used to transport liquids and gases for commercial and residential buildings, as well as in municipal water supplies.This material also acts as a structural component for scaffolding and framing systems.

Galvanized steel welding characteristics:

Galvanized steel is generally in the low-carbon steel outer layer of zinc-plated, galvanized layer is generally in the 20um thick. Melting point of zinc in 419 °C, bp 908 °C or so. In welding, the zinc melted into the liquid floating on the surface or in the root of the weld pool position. Zinc has a greater degree of solid solution of iron, zinc, liquid etching along the grain boundary deep weld metal, low melting point of zinc to form a "liquid metal embrittlement." Meanwhile, zinc and iron can form brittle intermetallic compound phase of the weld metal of these brittle plastic reduction in the tensile stress and cracks. If the welding fillet welds, especially T-joint fillet most prone to penetrate the cracks. When welding galvanized steel, bevel edge surface and a zinc layer under the action of the arc heat, oxidation, melting, evaporation and even volatile white smoke and steam, can easily cause weld porosity. Due to oxidation and the formation of ZnO, the high melting point of about 1800 °C or more, if the welding process parameter is too small, will cause slag ZnO, simultaneously. Since Zn as a deoxidizer. Produce FeO-MnO or FeO-MnO-SiO2 slag melting oxides. Second, because the evaporation of zinc, a large amount of white smoke evaporation, stimulate the human body, harmful effects, therefore, necessary to weld galvanized layer of polishing off.

Detailed Information:

Product Name	Galvanized Carbon Steel Pipe
Material	10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35
Wall Thickness	1MM~12MM
Outer Diameter	20MM~508MM
Length	Length:5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
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
Grade	10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52 Grade A, Grade B, Grade C
Technique	Hot Dip Galvanized Round Steel Pipe
Packing	Bundle, or with all kinds of colors PVC or as your requirements
Pipe Ends	Plain end/Beveled,protected by plastic caps on both ends, cut square,grooved,threaded and coupling,etc.
Surface Treatment	1. Galvanized 2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement
Product Application	1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient
Origin	Tianjin, China
Certificates	API,ISO9001-2008,SGS.BV
Delivery Time	Usually within 10-45 days after receipt of advance payment