Name: Galvanized square pipe
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Galvanized square pipe

Galvanized square pipe is a kind of hollow square sectional steel pipe with square section shape and size made of hot rolled or cold rolled galvanized strip steel or galvanized coil as billet by cold bending processing and then by high frequency welding, or the cold formed hollow steel pipe made in advance by hot dip galvanized square pipe processing.

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Product Specification

Ingredients/Data

Galvanized square pipe from the production process is divided into hot galvanized square pipe and cold galvanized square pipe. It is precisely because the processing of these two galvanized square pipes is not the same that they have many different physical and chemical properties. In general, there are many differences in strength, toughness and mechanical properties.

Galvanized square pipe has two categories: hot-dip galvanized square pipe and electric galvanized square pipe. Hot-dip galvanized square pipe has wet method, dry method, lead-zinc method, REDOX method and so on. The main difference between different hot dip galvanizing methods is what method is used to activate the surface of the pipe to improve the quality of galvanizing after the acid dip cleaning of the steel pipe. At present, dry method and REDOX method are mainly used in production, and their characteristics are shown in the table. The surface of the zinc layer of electrogalvanizing is very smooth and compact with uniform structure. Good mechanical properties and corrosion resistance; The zinc consumption is 60%~75% lower than that of hot dip galvanizing. Electrogalvanizing has a certain complexity in technology, but this method must be used for single-sided coating, double-sided coating with different thickness of internal and external surface coating, and thin-wall pipe galvanizing.

Galvanized pipe size specification table
	Specification					Galvanized pipe measuring 6 meters		Welded pipe measuring 6 meters
Number	Nominal inside diameter	Inches	OD/mm	WT/mm	Minimum wall thickness	Weight per meter/kg	Weight per stick/kg	Weight per meter/kg	Weight per stick/kg
1	DN15 galvanized pipe	1/2	21.3	2.8	2.45	1. 35	8.14	1.28	7.68
2	DN20 galvanized pipe	3/4	26.9	2.8	2.45	1. 76	10. 56	1. 66	9.96
3	DN25 galvanized pipe	1.0	33.7	3.2	2.8	2.554	15.32	2.41	14.46
4	DN32 beryllium zinc tube	1.25	42.4	3.5	3.06	3.56	21.36	3.36	20.16
5	DN40 galvanized pipe	1.5	48.3	3.5	3.06	4.1	24.6	3.87	23.22
6	DN50 plated front tube	2.0	60.3	3.8	3.325	5.607	33.64	5.29	31.74
7	DN65 galvanized pipe	2.5	76.1	4.0	3.5	7.536	45.21	7.11	42.66
8	DN80 galvanized pipe	3.0	88.9	4.0	-	8.88	53.28	8.38	50.28
9	DN100 galvanized pipe	4.0	114.3	4.0	-	11.53	69.18	10.88	65.28
10	DN125 galvanized pipe	5.0	140	4.5	-	15.942	98.65	15.04	90.24
11	DN150 galvanized pipe	6.0	168.3	4.5	-	19.27	115.62	18.18	109.08
12	DN200 galvanized pipe	8.0	219.1	6.0（Welded pipe）	-	-	-	31.53	189.18
13	DN200 galvanized pipe	8.0	219.1	6.5（Hot dip galvanizing）	-	36.12	216.7	-	-

Product Name	Galvanized square pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Material type	Q195 Q235A A35 A53 A106 S235 S355 Dx51d+Z Dx52d+Z Dx53d+Z,etc.
Outer Diameter	Seamless: 1/4"-36"	Welding: 21.3mm-3620mm
	Round Tube: 1/2"-10"	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Wall Thickness	1MM~12MM as the requirement
Outer Diameter	21.3MM~219.1MM
Length	5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
Zinc Coating	30g-275g
Technique	Seamless / ERW(GALVANIZED)
Packing	Bundle, or with all kinds of colors PVC or as your requirements
Certificate	CE, tisi, KS, JIS, GS, ISO9001
Delivery Time	within 7 days
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Purpose:

Because the galvanized square pipe is galvanized on the square pipe, the application range of galvanized square pipe has been greatly expanded compared with the square pipe. It is mainly used in curtain wall, construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plant, agriculture and chemical machinery, glass curtain wall, automobile chassis, airports and so on.

Features:

Galvanizing has stronger protective effect and strong corrosion resistance. The entire structure is made of zinc, forming a dense quadruple junction crystal, which forms a barrier on the steel plate and thus effectively prevents the penetration of corrosion factors. Corrosion resistance The barrier layer from zinc provides strong protection. When zinc is sacrificed for protection in the cut edges, scratches and abrasion parts of the coating, zinc forms an insoluble oxide layer, which acts as a barrier protection.

Square tube size (mm)		Rectangular tube size (mm)
16×16×0.4~1.5	380×380×8.0~14.0	10×20×0.6~1.5	250×150×6~12.0
18×18×0.4~1.5	400×400×8.0~14.0	14×21×0.6~1.5	250×100×6~12.0
20×20×0.4~1.5	420×420×10.0~14.0	15×30×1.5~1.5	250×200×6~12.0
25×25×0.6~2.0	450×450×10.0~14.0	15×38×0.6~1.5	300×150×6~12.0
30×30×0.6~4.0	480×480×10.0~14.0	20×30×0.6~2.0	300×200×6~12.0
34×34×1.0~2.0	500×500×10.0~14.0	20×40×0.8~2.0	300×250×6~12.0
35×35×1.0~4.0	550×550×10.0~40.0	20×50×1.0~2.0	400×250×8~12.0
38×38×1.0~4.0	600×600×10.0~40.0	22×35×0.9~2.0	400×300×8~12.0
40×40×1.0~4.5	700×700×10.0~40.0	25×40×0.9~3.75	450×200×8~12.0
44×44×1.0~4.5	800×800×10.0~50.0	25×65×1.0~2.0	450×250×8~12.0
45×45×1.0~5.0	900×900×10.0~50.0	30×40×1.0~3.75	400×300×8~12.0
50×50×1.0~5.0	1000×1000×10.0~50.0	30×45×1.0~3.75	400×350×8~12.0
60×60×1.5~5.0		30×50×1.0~4.0	500×200×10~12.0
70×70×2.0~6.0		30×60×1.0~4.5	500×250×10~12.0
75×75×2.0~6.0		40×50×1.0~4.5	500×300×10~12.0
80×80×2.0~6.0		40×60×1.0~5.0	500×350×10~12.0
85×85×2.0~6.0		40×80×1.5~5.0	500×400×10~12.0
95×95×2.0~8.0		40×100×2.0~5.0	500×450×10~12.0
100×100×2.0~8.0		50×60×2.0~5.0	600×200×10~28.0
120×120×4.0~8.0		50×80×2.0~5.0	600×400×10~28.0
150×150×6.0~10.0		50×100×2.0~8.0	600×500×10~28.0
180×180×6.0~12.0		60×80×2.0~6.0	800×400×10~28.0
200×200×6.0~12.0		80×100×2.0~8.0	800×600×10~28.0
220×220×6.0~14.0		120×60×2.5~10.0	800×700×10~28.0
250×250×6.0~14.0		120×80×2.5~10.0	1000×400×10~28.0
280×280×6.0~14.0		150×100×2.5~12.0	1000×500×10~28.0
300×300×8.0~14.0		180×150×2.5~12.0	1000×600×10~28.0
320×320×8.0~14.0		200×100×4~12.0	1000×800×10~28
350×350×8.0~14.0		200×150×4~12.0

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