Hebei Qijie Wire Mesh MFG Co., Ltd
| Payment Terms | L/C, D/P, T/T, Western Union |
| Supply Ability | 100tons |
| Delivery Time | 15-18days |
| Packaging Details | bulk |
| Material | steel |
| Surface Treatment | hot dipped galvanized |
| Standard | GB/T3091 - 2001 ,BS1387 - 1985 , DIN EN10025 ,EN10219 , JIS G3444:2004 , ASTM A53 |
| Steel Grade | GB/T3091 - 2001:Q195 , Q235 BS1387 - 1985 , DIN EN10025 EN10219 :S235JR JIS G3444:2004:STK400 ASTM A53: GR. A , GR. B |
| Brand Name | qijie |
| Model Number | steel pipe |
| Certification | steel pipe |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/P, T/T, Western Union | Supply Ability | 100tons |
| Delivery Time | 15-18days | Packaging Details | bulk |
| Material | steel | Surface Treatment | hot dipped galvanized |
| Standard | GB/T3091 - 2001 ,BS1387 - 1985 , DIN EN10025 ,EN10219 , JIS G3444:2004 , ASTM A53 | Steel Grade | GB/T3091 - 2001:Q195 , Q235 BS1387 - 1985 , DIN EN10025 EN10219 :S235JR JIS G3444:2004:STK400 ASTM A53: GR. A , GR. B |
| Brand Name | qijie | Model Number | steel pipe |
| Certification | steel pipe | Place of Origin | China |
| High Light | galvanized steel round pipe ，square pipe for building materials ，galvanized steel building pipes | ||
Galvanized Steel Round Square Pipe for Building Materials
Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the in the hot dip bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate, so it has strong corrosion resistance.
Cold galvanized pipe is electro-galvanized, and the amount of galvanized is very small, only 10-50g/m2. Its corrosion resistance is much different than that of hot-dip galvanized pipe. In order to ensure the quality, most regular galvanized pipe manufacturers do not use electro-galvanized (cold plating). Only those small enterprises with outdated equipment use electrogalvanizing, and of course their prices are relatively cheap. The Ministry of Construction has officially issued an order to eliminate cold galvanized pipes with outdated technology, and not to use cold galvanized pipes for water and gas pipes. The galvanized layer of cold galvanized steel pipe is an electroplating layer, and the zinc layer is independently layered with the steel pipe substrate. The zinc layer is thin, and the zinc layer simply adheres to the steel pipe substrate and is easy to fall off. Therefore, its corrosion resistance is poor.
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1.Black square&rectanhgular steel pipe:ERW steel tube
2.Pre-galvanized square&rectangular steel pipe: Pre-galvanized square/rectangular tube is made of hot dipped galvanized steel strip directly.
3.Hot dipped galvanizedsquare&rectangular steel pipe : Hot dipped galvanized square/rectangular tube owns thicker zinc coating than pre-galvanized square/rectangular tube. Black tubes will be dipped into zinc pool for galvanizing.
4.Electro galvanized square&rectangular steel pipe : The technology of electro galvanized square/rectangular tube is similar to hot dipped galvanized tube, but the thickness of zinc coating is less than hot dipped galvanized tube.
5.Painted square&rectangular steel pipe:Painted square/rectangular to remove the rust and clean the oil first and then paint the required color paint.
Standard:GB/T6728:2002,ASTMA500,JIS G3466,EN10210,EN10219
Steel Grade:
GB/T6728:2002 : Q195 , Q235 , Q345
ASTM A500:GR. A , GR. B, GR. C , GR. D
JIS G3466 : SS440,SS540
EN10210, EN10219: S235JR ,S275JR,S355JR, S355J2H
Square & rectangular steel tube : The size can be based on your requirement to custom.
| Name | Size | Wall Thickness | Length |
| mm | mm | m | |
| Square tube | 10x10-500x500 | 0.6-25.0 | 1-12m |
| Rectangular tube | 20x10-200x400 | 0.7-13.0 | 1-12m |
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TECHNICAL PARAMETERS
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Product Name
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Galvanized Steel Round Pipe
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Keywords
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Steel Pipe
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Standard
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BS1139-1775, EN1039, EN10219, JIS G3444:2004, GB/T3091-2001, BS1387-1985, DIN EN10025, ASTM A53 SCH40/80/STD, BS-EN10255-2004
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Material
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Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D
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Thickness
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Pre Galvanized:0.6-1.5mm.
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Hot Dipped Galvanized: 1.6- 25mm.
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Length
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5.80 Meters Or 6 Meters As Usual Or By Customer'S Requirements
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Out Diameter
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Pre Galvanized:1/2''-4''(21.3-114.3mm).
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Hot Dipped Galvanized:1/2''-10''(21.3Mm-273.1mm).
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Zinc Coating
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Pre Galvanized:5GSM-40GSM
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Hot Dipped Galvanized 35GSM-200GSM
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Technique
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Electronic Resistance Welded (ERW)
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Surface Finish
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Pre-Galvanized, Hot Dipped Galvanized, Electro Galvanized, Black, Painted, Threaded, Engraved, Socket.
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Application
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Hot Dipped Galvanized Steel Pipe Is Widely Used In Construction, Structure, Accessorize,Construction, Machinery Parts,Fluid Transportation,The Stress Parts Of The AutomobileTractor Parts And So On.
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Packing
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1.Big OD:In Bulk
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2.Small OD:Packed By Steel Strips
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3.Woven Cloth With 7Slats
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4.According To The Requirements Of Customers
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SIZE INTRODUCTION
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Out Diameter
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Wall Thickness
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Length
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Inch
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Mm
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M
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1/2"
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0.5-2.75
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1-12M (Customized)
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3/4"
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0.5-2.75
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1-12M (Customized)
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1"
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0.5-3.75
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1-12M (Customized)
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1-1/4"
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0.5-5.0
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1-12M (Customized)
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1-1/2"
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0.5-5.0+
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1-12M (Customized)
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2"
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0.5-5.0+
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1-12M (Customized)
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2-1/2"
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0.8-5.0+
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1-12M (Customized)
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3"
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0.8-5.0+
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1-12M (Customized)
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4"
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0.8-4.0
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1-12M (Customized)
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5"
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1.1-4.75
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1-12M (Customized)
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6"
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1.1-6.0+
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1-12M (Customized)
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8"
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1.2-6.5+
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1-12M (Customized)
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10"
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2.75-5.0+
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1-12M (Customized)
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Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Seller
Year Established:
1999
Total Annual:
30,000,000-35,000,000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Hebei Qijie Wire Mesh MFG Co., Ltd. is located in Anping county, Northern China, which is famous as "the hometown of wire mesh" in the country. The company was founded in 1999 with a registered capital of 500,000 US dollars, covering 40,000 square meters, has 3 plan... Hebei Qijie Wire Mesh MFG Co., Ltd. is located in Anping county, Northern China, which is famous as "the hometown of wire mesh" in the country. The company was founded in 1999 with a registered capital of 500,000 US dollars, covering 40,000 square meters, has 3 plan...
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