Hot Sale High Quality Q235A Q235B Q345b Galvanized Square Steel Pipe Rectangle Tube

• Customization: Available
• Material: Carbon Steel
• Surface Treatment: Black
• Section Shape: Round
• Application: Structure Pipe
• Thickness: 0.8 - 12.75 mm
• Special Pipe: API Pipe, EMT Pipe
• Grade: Q235, Q235B, S275, S275jr, A53, St37, etc
• Length: 12m, 6m, 6.4m
• Product Name: Rectangle Square Steel Tube
• Key Word: Welded Square Steel
• Surface: Black Painted
• Transport Package: Bundle, or with All Kinds of Colors PVC or as Your
• Specification: 20mm-1219mm
• Origin: China
• HS Code: 7306309000
• Production Capacity: 100000pices/Year

Product Description

Hot Sale High Quality Q235A Q235B Q345B Galvanized Square Steel Pipe Rectangle Tube

Product Description

Galvanized square tube

Surface is hot-dip plated or galvanized layer welded steel pipe. Hot-dip galvanizing can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized square tube is widely used, in addition to water, gas, oil and other general low-pressure fluid pipeline, but also for the oil industry, especially offshore oil wells, pipeline, Pipe with the tube, as well as the bridge bridge pile, mine tunnel support frame with the tube.
The galvanized square tube is an alloy layer produced by the reaction of the molten metal with the iron matrix, so that both the substrate and the plating layer are combined. Hot-dip galvanizing is the first pickling of the steel pipe, in order to remove the iron oxide surface of the steel pipe, pickled, through ammonium chloride or zinc chloride water solution or ammonium chloride and zinc chloride mixed aqueous solution And then into the hot-dip plating tank. Often used galvanized pipe, galvanized pipe is used in the gas, heating with the kind of iron pipe is galvanized pipe, galvanized pipe as a water pipe in the use of a few years later, the tube will produce a lot of rust, The sanitary ware, and mixed with non-smooth inner wall of the bacteria, rust caused by high levels of heavy metals in the water and thus seriously endanger human health. But the hot galvanized pipe is a very uniform coating, strong adhesion, the use of long life and other advantages.

Square and rectangular steel pipe
Material	Carbon steel
Steel Grade	Q195 = S195 / A53 Gr. A Q235 = S235 / A53 Grade B / A500 Gr. A / STK400 / SS400 / ST42.2 Q355 = S355JR / A500 Grade B Grade C
Size range	DIAMETER: 20x20MM-600x600MM ; THICKNESS: 1.0MM--20.0MM
Standard	EN10219, EN10210,GB/T 6728,JIS G3466,ASTM A500, A36
Grade	SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc
Manufacturing technique	Hot rolled(elementary) Can be processed again repeatedly
strength of extension	A36/420MPa S355JR/485MPa
Certificates	ISO 9001 / ISO 18001 / ISO 14001 / CE
Delivery Time	10~20days
Shipping	(1)Shipping by containers (2)Shipping by bulk ship

Square		Retangular
OD(MM)	WT(MM)	OD(MM)	WT(MM)
20*20	0.9-2.0	20*30	1.0-2.0
25*25	1.1-2.0	20*40	1.0-2.0
30*30	1.2-2.2	25*40	0.8-2.0
35*35	1.2-2.2	25*50	0.8-2.2
40*40	0.8-2.0	30*40	0.8-2.2
50*50	0.8-2.0	30*50	0.8-2.2
60*60	1.0-2.2	40*60	1.0-2.0
80*80	1.1-1.8	40*80	1.0-2.0
100*100	1.2-2.5	50*100	1.0-2.0

 

Product Process

 

Packaging & Shipping

· 1- Plastic caps plugged at the two sides of pipe ends

· 2- Should be avoided by the steel strapping and transport damage

· 3- Bundled signs should be uniform and consistent

· 4- The same bundle(batch) of steel pipe should be came from the same furnace.

· 5- The steel pipe has the same furnace number, the same steel grade, the same specifications.
 

FAQ

1.Q:  Can we visit your factory?

-A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
2.Q: Can provide OEM/ODM service?
-A: Yes. Please feel free to contact us for more details discuss.
3.Q: How is your Payment Term?
-A:We prefer TT
4.Q: Can you provide sample?
-A: Yes, for regular size of samples, it's for free but buyer need to pay freight cost.
5.Q.Surface coating

A:Antirusted painting, varnish painting, galvanized, 3LPE, 3PP,Zinc oxide yellow primer,Zinc phosphate primer and as per customers' request.
6.Q:Why choose our company ?
-A:(1)We are specialized in this industry for more than 20 years
     (2) We are the gold supplier on Alibaba com
7.Q: What's the MOQ ?
-A: 5Tons is ok
8.Q: What's your delivery time ?
-A:Regular lead time is 15 to 30 days after receiving deposit