Black Square Pipe

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Black Square Pipe


Wall thickness:             0.8mm-2.5mm

Diameter:                        32mm-114mm

Length:                          5.8m-12m

Surface:                         3PE, painting, coating oil, 

                                          steel stamp, drilling, etc

Free Samples:                  Available



Black steel pipe is made of steel that has not been galvanized. Its name comes from the scaly, dark-colored iron oxide coating on its surface.

Product Material: 

It is produced by steel strip and the main elements such as nickel, chromium and copper are of high purity and stability.

Black Square Pipe Features: 

  • Good extension performance

  • strong welding

  • High precision

Black Steel pipe Application:

Black pipe is a high-strength pipe that has an iron oxide coating. Hence, its common uses are gas distribution to homes, carrying potable water or hot water from boilers, or draining wastes. Similarly, the oil Industry uses black pipes to transport oil.

Black Square Pipe

Black Square Pipe Specification:



Black Square Pipe


Longitudinal Electronic Resistance Welding(ERW)  High Frequency Welding(HFW)

Steel Grade

Q195 similar to a283 GR.B, 040a10, ss330, sphcQ235 similar to a283 GR.D, 080a15,CS type BQ345 similar to a737 GR.B, SS400, S235JR

Wall thickness







Galvanized, 3PE, painting, coating oil, steel stamp, drilling, etc


Plain ends, cutting, threading, beveled, flange, etc


Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement.


With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, With Nondestructive Inspection


Q: How can I get a quotation from you ?

A: You can leave us message, and we will reply every message in time.


Q:Can I have a trial order only several tons?

A: Of course. We can ship the cargo for u with LCL serivece.(Less container load)

Q:Could you provide the samples?

A: Sure, but it is just for normal sizes, and the freight will be paid by you.


Q:Do you have stockist goods?galvanized steel pipe?

A: Yes, but you must send me the sizes you need , let me check it for you.

Quick quote