Hot Rolled Bright Smooth Gi Square Tube Manufacturer

Galvanized square rectangular tube is a kind of hollow square section shape and size that can be made of cold-rolled and hot-rolled galvanized strip or galvanized coil. Square section steel pipe.

Hot-dip galvanized square pipes include wet method, dry method, lead-zinc method, redox method, etc. The main difference between different hot-dip galvanizing methods is what method is used to activate the surface of the pipe body to improve the quality of galvanizing after the steel pipe is acid dipped and cleaned. Mainly use dry method and redox method.

The surface of the zinc layer of cold galvanizing, that is, electro-galvanizing, is very smooth and dense, and the structure is uniform; it has good mechanical properties and corrosion resistance; the zinc consumption is 60% to 75% lower than that of hot-dip galvanizing.

Product Specification of Gi Square Tube Manufacturer

Out Diameter	Pre galvanized:1/2''-4''(21.3-114.3mm). Such as 38.1mm, 42.3mm, 48.3mm, 48.6mm or as customer request.
	Hot dipped galvanized:1/2''-24''(21.3mm-600mm).Such as 21.3mm, 33.4mm, 42.3mm, 48.3mm, 114.3mm or as customer request.
Thickness	Pre galvanized:0.6-2.5mm.
	Hot dipped galvanized: 0.8- 25mm.
Zinc coating	Pre galvanized：5μm-25μm
	Hot dipped galvanized：35μm-200μm
Type	Electronic Resistance Welded (ERW)
Steel Grade	Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D
Standard	BS1139-1775, EN1039, EN10219, JIS G3444:2004, GB/T3091-2001, BS1387-1985, DIN EN10025, ASTM A53 SCH40/80/STD, BS-EN10255-2004
Surface Finish	Pre-galvanized, Hot dipped galvanized, Electro galvanized, Black, Painted, Threaded, Engraved, Socket.
International Standard	ISO 9000-2001, CE CERTIFICATE, BV CERTIFICATE
Packing	1.Big OD:in bulk 2.Small OD:packed by steel strips 3.woven cloth with 7 slats 4.according to the requirements of customers
Remark	1. Payment terms : T/T ,L/C 2. Terms of trade : FOB ,CFR,CIF ,DDP,EXW 3. Minimum order : 2 tons 4. Delivery time : Within 25 days.

call us now！ +86-18365977887 Or write to us at Echo@kuaimasteel.com

Galvanized Steel Pipe Production Line

Shandong Kuaima Steel Co., Ltd. has advanced special smelting, investment casting, pipe making and other production equipment. The company has 15 advanced production lines, which can independently produce hot/cold rolled steel, galvanized steel pipe, galvalume steel, prepainted steel and stainless steel coils,,strips, plates, plates, pipes, bars and other products. The standing inventory is more than 450,000 tons to meet the customer's demand for delivery time.

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Galvanized Steel Pipe Quality Inspection

We have professional testing equipment. We have our own testing center laboratory to guarantee the quality of our products.

thickness
width
coating quality
chromatic aberration
paint
thickness
hardness
luster
tensile strength
Yield Strength

Galvanized Steel Pipe Application Industry

Machinery manufacturing industry
Oil & Gas Industries
Construction industry
Shipbuilding industry
Chemical industry
Power Generation

Galvanized Steel Pipe outlet

We are a world-renowned Galvanized Steel Pipe exporter, Qatar, Ireland, Portugal,Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Ro-Fanaticism, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany,Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece,Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus,Finland, Gabon, Iran, Canada, Argentina, Lebanon. other countries