Black Iron Pipe Size Chart Carbon Steel Welded Steel Pipe

Round Steel Pipe (21.3mm-406.4mm)
Square Steel Pipe (20mm*20mm-500mm*500mm)
Rectangular Steel Pipe (20mm*30mm-400mm*600mm)

Surface Treatment

1. Bared 2.Black Painted (varnish coating) 3.Galvanized

4. With Oiled 5.3 PE, FBE, corrosion resistant coating

         Tianjin HengJi Steel Co., Ltd. Was founded in May 2000. Our company is a comprehensive steel manufacturer integrating production, processing and trade all in one.The Factory covers a land area of approx.173,000 sqm with 13 ERW pipe production lines,4 Hot-dipped galvanized pipe production lines with total annual output of 600,000 tons.

            The products of Hengji Steel include ERW pipes, galvanized steel pipes, seamless pipes, petroleum casing tubes, spiral welded pipes, square hollow section, HengJi have strictly implemented the ISO9001-2008 management system .The high efficiency management and finest quality of raw material ensure that the quality of Hengji's products is always among the best in the industry.

               HengJi Steel has won wide praises for its good resources advantages, high quality, complete range of product specifications,and abundant source of supply, convenient traffic and perfect after-sale service.

FAQ:
Q: Are you a manufacturer?
A: Yes , we are a manufacturer, We have own factory, which is located in TIANJIN,CHINA. We have a leading power in producing and exporting steel

pipe,galvanized steel pipe,hollow section,galvanized hollow section etc. We promise that we are what you are looking for.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So wecan give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.

  If you have any question,please feel free to contact me. Sales Service 24 hours

        we are sure your inquiry or requirements will get prompt attention.