Commongalvanized steel pipe specifications are: DNA15 outer diameter is 21.3 mm, DN20 is 26.9 mm, DN25 is 33.7 mm and so on. This kind of steel pipe can be welded, but attention should be paid to the construction, after welding must be polished smooth galvanized layer, otherwise it will affect the quality, serious will also appear bubbling or oxidation problems.
Galvanized pipe (6 m) Galvanized pipe (6 m) Nominal inside diameter inches outside diameter mm DN15 1/2 21.3 DN20 3/4 26.9 DN25 1 33.7 DN32 1.25 42. DN40 1.5 48.3 DN50 2 60. DN65 2.5 76.1 DN80 3 88.9 DN100 4 114.3 DN125 5 140 DN150 6 168.3 DN200 8 219.1
The outside diameter of DN15 is 21.3mm, which is referred to as 4 parts.
The outside diameter of DN20 is 26.8mm, which is referred to as 6 parts.
The outside diameter of DN25 model is 33.5mm, 1 inch for short.
DN32 model outer diameter 42.25mm, 1 "2 for short.
The outside diameter of the DN40 model is 48mm, which is one and a half inches for short.
The outside diameter of DN50 model is 60mm, 2 inches for short.
The outside diameter of DN65/70 model is 75.5mm, 2 and a half inches for short.
The outside diameter of DN80 model is 88.5mm, 3 inches for short.
The outer diameter of DN100 is 114mm, 4 inches for short.
The outside diameter of DN125 model is 140mm, 5 inches for short.
The outside diameter of DN150 is 165mm, 6 inches for short.
The outside diameter of DN200 model is 219mm, 8 inches for short.
This type of tubing is widely used in the construction and electric power industries. Some homeowners use it as a cold water pipe. This is not suitable. When we purchase pipes, we must understand the characteristics of each pipe in advance, choose the right products according to the construction environment and their own needs, so as to give full play to its maximum efficiency, reduce unnecessary waste, save more time and money.
Galvanized water pipe commonly used MM=6, outer diameter MM=10.0, wall thickness MM=2, ordinary steel pipe 1.064 and thick steel pipe 1.059. MM=8, outer diameter MM=13.5, wall thickness MM=2, steel pipe is 1.056, so the thickened steel pipe is 1.046. MM=10, outer diameter MM=14, wall thickness MM=3.50, commonly used steel pipe is 1.056, the thickened steel pipe is 1.046. MM is 15, outer diameter is 21.3, wall thickness is 3.15, so the steel pipe is 1.047, and the thickened steel pipe is 1.039. The MM is 20, the outer diameter is 26.8, and the wall thickness is 3.4. The common steel pipe is 1.046, and the thickened steel pipe is 1.039. Diameter =25, outer diameter is 33.5, wall thickness is 4.25, commonly used steel pipe is 1.039, thickened steel pipe is 1.032, MM is 32, outer diameter is 42.3, wall thickness is 5.15, commonly used steel pipe thickness is 1.039, thickened steel pipe thickness is 1.032. The MM is 40, the outer caliber is 48, the wall thickness is 4, the commonly used steel pipe is 1.036, and the thickened steel pipe is 1.030. MM is 50, MM outside is 60, wall thickness is 5, ordinary steel pipe is 1.036, increased thickness is 1.028. The diameter is 65, the outside diameter is 75.5, the wall thickness is 5.25, the common steel pipe is 1.034, and the thickened steel pipe is 1.028. The caliber is 150, the outer diameter is 165, and the wall thickness is 7.5. The ordinary steel pipe is 1.028, and the thickened steel pipe is 1.023.
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