shouldered grooved pipe for tunnel

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Product Description:

Product Name

Shouldered Grooved pipe

Outside Diameter(mm)


Wall thickness(mm)





1.ASTM A106/A53 GR.A; ASTM A106/A53 GR.B; ASTM A53/A106 GR.C

2.APL 5L GR.B, API 5CT J55, K55, N80



A, B, C, ST33, ST37, ST35.8, ST45-8, ST45-4, ST52

Place of Origin

Hebei Cina

Face finished

1.Manual polished

2.mechanical polished paint on the face

4.Shoulder Grooved on both ends

5.Galvanized or Colour Painting


Europe, South America, the Middle East, Africa, Asia and other countries and regions, well received by consumers!

Process Method

1.Cold Drawn

2.Cold rolled

3.Hot rolled

4. Hot expanded


Tube with hollow cross-section, a large number of channels for transporting fluids, such as the transportation of oil, natural gas, gas, water and some solid materials, pipes, etc..


1.Inner Packing:Caps at both ends, steel strong trips on every bundle

2.Outer Packing:Standard export package or as per clients' requirements

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Q:What's the difference between a rectangular tube and a rectangular steel tube?
No difference, but your name is different, rectangular steel pipe, but can be divided into seamless rectangular steel pipe and welded rectangular, these two, in the material will also have a difference, I do not know how to help you
Q:Seamless steel pipe is how to do it?
Round tube has some limitations, such as in the plane bending conditions, the tube is better than square and rectangular tube bending strength, and some agricultural machinery skeleton, steel, wood furniture, commonly used square, rectangular tube. According to different purposes, other sections of special-shaped steel pipe are needed.
Q:Is the seamless steel pipe used in the market hot or cold drawn?
Small and medium-sized cold drawn and hot-rolled are many, large caliber is hot rolling, cold rolled spot less.
Q:How much is 4 inches steel tube MM?
1 inches =25.4 mm;4 inches =101.6 mm;The specification of steel pipe is usually nominal size;
Q:Can galvanized steel tubes simmer?
Galvanized pipe bending is one of the elbow, the surface of the pipe is coated with a layer of zinc material to improve the corrosion resistance of the elbow. Galvanized pipe bending hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, zinc plating cost is low, the surface is not very smooth. Galvanized pipe bending cold tube, hot tube, the former has been banned, and the latter is also advocated by the state for the time being.
Q:What is the difference between seamless steel pipe and welded pipe?
The thicker the diameter, the more commonly the spiral weld. The seamless steel pipe is generally molten state molten steel through the annular slot backlog, and then stretched and other treatment process, so that there is no weld. On the performance, especially the pressure capacity of the steel pipe than ordinary steel has greatly improved, so often used for high voltage equipment.
Q:Are galvanized steel tubes the same as degaussing steel tubes?
Degaussing steel tubeThe degaussing method specifies the following demagnetization in the established process document
Q:Why seamless steel pipe called seamless steel pipe?
Seamless steel pipe is a hollow section, without the joint round, square, rectangular steel. Seamless steel tubes are made of ingots or billets made by piercing and are then made by hot rolling, cold rolling or cold casting. Seamless steel pipe with a hollow section, as pipe conveying fluid, compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, bike frame and construction using steel scaffolding.
Q:How to distinguish between steel pipe and spiral pipe material?
The alloy tube can be divided into: low alloy pipe, alloy pipe structure, high alloy tube, high strength tube. Bearing tube, heat resistant acid resistant stainless pipe, precision alloy (such as cutting alloy) pipe, high temperature alloy tube, etc..
Q:How long is the seamless tube?
Welded pipe is generally 6912 meters fixed length, seamless pipe on the market in general non fixed foot, but usually more than 6 meters

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