portfolio detail

Black Welded Pipe

Black steel pipes are made of steel that has not been coated with a substrate such as zinc or paint. Since it has a dark color surface that is forms by iron oxide during the manufacturing process, it is called black steel pipe.

Black steel pipe 's strength makes it ideal for transporting water in rural and urban areas and for conduits that protect electrical wiring.

The black steel pipe is also used for fire sprinkler systems because it is more fire-resistant than galvanized pipe.

Since black pipe has no protective coating, it may rust easily in wet or humid environments. To stop the pipe from rusting or corroding on the outside, you should provide a layer of protection on the outside of the pipe. The easiest method is painting it.


STANDARD

BS EN 10255/ BS 1387/MS 863

CLASS

LIGHT (A)/ MEDIUM (B)/HEAVY (C)

SIZE

1/2” NB to 6” NB (Refer : sizes & chart)

TEST PRESSURE

50 BAR 

END

PLAIN END

LENGTH

6 Meters

THICKNESS TOLERANCE

-10% , + NOT SPECIFIED

 

STANDARD

JIS G 3452

SIZE

8” NB to 16” NB (Refer : sizes & chart)

TEST PRESSURE

360 PSI

END

PLAIN END

LENGTH

6 Meters

THICKNESS TOLERANCE

-12.5% , + NOT SPECIFIED