DN40, 1.5 inch, 91 pcs in a bundle. The reason is that all the steel pipes are packed into hexagonal shape for the convenience of shipment. Because they are packed in hexagonal shape, the quantity can only be 19, 37, 61,91,127,169 and so on.
And because of the weight limitations of the lift, the number of 40 tubes is 91. Because it would be too heavy to load up to 127.
If it is galvanized steel pipe, galvanized pipe weight is heavier, DN40 galvanized pipe a piece is 61.
Expanded Information
By production method
Steel pipe can be divided into two categories according to the production method: seamless steel pipe and seamed steel pipe, seamed steel pipe is referred to as straight seam steel pipe.
1. Seamless steel tubes can be divided into two categories according to the production method: hot-rolled seamless tubes, cold-drawn tubes, precision steel tubes, hot-expanded tubes, cold-rotated tubes and extruded tubes.
Seamless steel pipe made of high-quality carbon steel or alloy steel, hot-rolled, cold-rolled (drawn).
Bundles of steel pipe
2. Welded steel pipe is divided into furnace welded pipe, electric welding (resistance welding) pipe and automatic arc welded pipe because of its welding process, because of its welding form is divided into two kinds of straight seam welded pipe and spiral welded pipe because of the shape of its end is divided into round welded pipe and shaped (square, flat, etc.) welded pipe.
Welded steel pipe is rolled into a tube shape by the steel plate to butt seam or spiral seam welding and become, in the manufacturing method, and is divided into low-pressure fluid transportation with welded steel pipe, spiral seam welded steel pipe, direct coil welded steel pipe, electric welded pipe and so on. Seamless steel pipe can be used for liquid air pressure pipeline and gas pipeline in various industries, etc. Welded pipe can be used for water pipeline, gas pipeline, heating pipeline, electrical pipeline and so on.
By material
Steel pipe according to the pipe material (i.e. steel) can be divided into: carbon pipe and alloy pipe, stainless steel pipe, etc..
Carbon pipe can be divided into ordinary carbon steel pipe and high-quality carbon structural pipe.
Alloy pipe can be divided into: low alloy pipe, alloy structural pipe, high alloy pipe, high strength pipe. Bearing tube, heat-resistant and acid-resistant stainless steel tube, precision alloy (such as lumbering alloy) tube and high-temperature alloy tube.
Categorized by connection
Steel pipe can be divided into: light pipe (pipe end without threads) and car silk pipe (pipe end with threads).
The threaded pipe is further divided into: ordinary threaded pipe and pipe end thickened threaded pipe.
Thickened wire turning tube can also be divided into: external thickening (with external threads), internal thickening (with internal threads) and internal and external thickening (with internal and external threads) and so on wire turning tube.
The threaded pipe can also be divided into: ordinary cylindrical or conical threads and special threads.
Additionally, according to the user's needs, the tube is usually delivered with pipe fittings.
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