|Sizes||O.D : 21.3mm-712mm W.T :0.5mm-25mm|
|Less than 12 meters,5.8 m and 6m are common|
|Steel material||Q235, Q345 ,S235JR ,S275 ,S355|
|Application||Carbon steel pipe use for construction ,building filed , low pressure liquid, water, gas, oil, line pipe|
|Pipe Ends||1) Plain|
|3) Thread with Coupling or cap|
|End protector||1) Plastic pipe cap|
|2) Iron protector,clamp|
|Surface Treatment||1) Galvanized|
|2) Black Painted (varnish coating)|
|5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating.|
|Technique||Electronic Resistance Welded (ERW )|
|Inspection||With Hydraulic Testing, Eddy Current , Infrared Test|
|2) Bulk carrier|
|Port of Shipment||Xingang Port,Tianjin, China|
|Date of Delivery||Within 15 days after the advance payment|
|Others||Fitting as screws and flange also can be supplied.|
|Norminal Size||Wall Thickness (mm)||Outer Diameter (mm)|
If you have other surface treatment of the black welded steel pipe, we recommend to you the hot dip galvanized steel pipe.
Black pipes will be dipped into zinc pool for galvanized. Zinc coating: 220-500g/m2.
Please click here:hot dipped galvanized steel pipe
End Treatment：Thread with caps: protect the ends Thread with socket: connect another pipes
Q: Are you trading company or manufacturer ?
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: yes, we could provide the free samples on conditons it is available in stocks, however, the the transportation fee is borne by buyer.
Q: How do we trust your company?
A: We specialise in steel business for years, headquarter locates in Liaocheng , Shandong province, you are welcome to investigate in any ways, by all means, you could place an order in alibaba with trade assurance which could secure your payment.