Q235 Black Steel Pipes And Tubes

Welded steel pipes are the most commonly used pipe materials. The welded steel pipe has low cost, high production efficiency and high strength. There are many varieties and specifications of welded steel pipes, of which Q235 is a common steel grade. Q235 is similar to A283 GR.B, 080A15, CS type B.
Welding methods for welded steel pipes are ERW, SSAW, LSAW.

Supply Q235 Pipes, Discount Black Steel Pipe, Steel Tube Producers Price

Q235 Black Steel Pipes And Tubes

Production process of welded steel pipe:

Strip steel > unwinding > steel strip leveling > cutting head > compact forming > weld heat treatment > sizing straightening > sawing > nozzle smoothing > baling > galvanizing

1. Product Description

Q235 Black Steel Pipes And Tubes

NPS	DN	OD (mm)
1/2''	15	21.3
3/4''	20	26.7
1''	25	33.4
1 1/4''	32	42.2
1 1/2''	40	48.3
2''	50	60.3
2 1/2''	65	73
3''	80	88.9
3 1/2''	90	101.6
4''	100	114.3
5''	125	141.3
6''	150	168.3
8''	200	219.1
10''	250	273
12''	300	323.8
14''	350	355.6