JIS ASTM Q235 Galvanized Steel Tube Zinc Coating Surface
Treatment
Product Description: Why use zinc as the coated layer?
Why use zinc? Because of zinc element is active than steel element.
On one hand, zinc oxide of galvanized steel pipe surface is
compact, it can stop oxidation(corrosion). On the other hand, when
electric-chemical corrosion has occurred, the first kind of metal
corrupted is zinc rather than steel. The zinc layer effect is stop
corrosion speed, and prolong the life of steel pipe.
Galvanized steel pipe application
Galvanized steel pipe mainly used in transmission of coal gas,
steam. It was used as water pipe, but after several years past,
there were many rust in the pipe, and water get yellow color for
carrying iron oxide. The water not only polluted dishes or other
sanitary ware, but also carrying bacteria produced in the internal
surface which not smooth . As a result of the corrosion, the water
contains heavy metal element is too much and is harmful to people’s
health. | Product name | Hot Dipped Galvanized Welded Square Pipe | | Thickness | 0.3-3.0mm | | Section | Square, Rectangular | | Length | As requirement | | Surface Treatment | Zinc Coating | | Packing | Standard export packing | | Place of Origin | Hebei China | | Usage | Construction,Scaffold | | Standard | GB, ASTM, BS, GB/T 3091-2001, ASTM A106-2006, ASTM A53 | | Grade: | Q195-Q345, A369, A53(A,B),ST37 |
| CHEMICAL COMPOSITION % | MECHANIC PROPERTY | C.B OF COATING | C | Si | Mn | S | p | T.S | Y.S | E.L | | x103 | x103 | x102 | x103 | x103 | Mpa | Mpa | % | d=180 | | 12 | 30 | 41 | 31 | 21 | 480 | 300 | 13 | OK | | 12 | 10 | 21 | 18 | 6 | 680 | 650 | 20 | OK | | 29 | 30 | 60 | 35 | 30 | 386 | 250-380 | 20 | OK | DX51D+Z | 20 | 21 | 18 | 1.8 | 11 | 355 | 245 | 38 | OK | G550 | 12 | 6 | 73 | 5 | 17 | 715 | 654 | 8 | OK |
Product Details:
Application:
About us:
FAQ:
Q1.Are you a trade company or manufacturer?
We are a company integrating industry and trade.
Q2. Can I request to change the form of packaging and
transportation?
A: Yes, We can change the form of the packaging and transportation
according to your request, but you have to bear their own costs
incurred during this period and the spreads.
Q3.Can you provide free sample?
Of course we can,We have many samples in various patterns in stock,
and customized samples will take about 5-7days to produce.Just
contact us for the FREE SAMPLES now !
Q4. How can I get a quotation from you ?
You can leave us message, and we will reply every message in time.
Or we may talk on line by Trademanager.And you can also find our
contact information on contact page.
Q5Can I have my own logo on the product?
Of course!We are a custom service,it includes customized
packaging,customized logo,graphic customization. |
