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PRODUCT DESCRIPTION

Product Description

1. The meaning of galvanized square pipe Galvanized square pipe is a kind of square cross-sectional shape made of hot-rolled or cold-rolled galvanized strip steel or galvanized coil sheet, which is formed by cold bending and then welded by high frequency.Dimensional hollow square section steel pipe; or galvanized square pipe made by hot-dip galvanizing or electro-galvanizing processing of cold-formed hollow steel pipe made in advance
2.There are two types of galvanized square pipes: hot-dip galvanized square pipes and electro-galvanized square pipes . Hot-dip galvanized square pipes include wet method, dry method, lead-zinc method, redox method, etc.
The main difference between different 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 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 cold galvanizing. Electrogalvanizing is technically complex, but this method must be used for single-sided coating, double-sided coating with different thicknesses of inner and outer surfaces, and galvanizing of thin-walled pipes.

Product NameSquare and Rectangular Steel Pipe
Specifications

Square pipe: 20*20mm~500*500mm
Rectangular pipe: 20*40mm~300*500mm

 

Thickness: 1.2mm~20mm

 

Length: 2.0m~12m

MaterialCarbon Steel 
Steel GradeQ195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q355 = S355JR / A500 Grade B Grade C
StandardEN10219, EN10210
GB/T 6728
JIS G3466
ASTM A500, A36
Anti-rusty coating

PVC Plastic wrapped

Slightly oiled

Painted black or other color

Pipe EndsPlain ends
Certificates

ISO 9001 / ISO 18001 / ISO 14001 / CE

Trade termsFOB, CFR, CIF, EXW, FCA
Payment termsT/T, LC
Delivery time15-45 days (based on quantity) after receiving advanced payment by T/T or LC .
Main marketSoutheast Asia, South Asia, Middle East, Europe, Middle&South America, Africa and Oceania

TubeCertificates and ClientsApplication industry

3. Introduction and use of
cold galvanized square pipe Cold galvanized square pipe means that the galvanized square pipe has not been On the cathode in the electroplating bath, the anode is zinc.
The popular name for cold galvanized square pipe is square steel pipe. According to the diameter and shape, there are square cold galvanized square tubes and rectangular cold galvanized square tubes
. Square tube (ie q235 cold galvanized square tube) and alloy steel cold galvanized square tube (ie q345 cold galvanized square tube), the surface coating of cold galvanized square tube is galvanized cold galvanized square tube or Oil-coated cold galvanized square pipe, according to the wall thickness, there are thin-wall cold-galvanized square pipe and thick-wall cold-galvanized square pipe, etc.

Cold galvanized square pipe is widely used in various industries: for construction engineering, it is called cold galvanized square pipe for construction, for steel structure parts, it is called cold galvanized square pipe for steel structure, for machinery manufacturing, it is called mechanical cold galvanized square pipe, For the shipbuilding industry, it is called marine cold galvanized square pipe, for the automobile industry, it is called automobile cold galvanized square pipe, for aviation equipment is called aviation cold galvanized square pipe, for metallurgical industry, it is called metallurgical cold galvanized square pipe, For agricultural equipment, it is called cold galvanized square pipe for equipment, for plant greenhouse, it is called cold galvanized square pipe for plant , for railway facilities, it is called cold galvanized square pipe for railway, for highway guardrail, it is called cold galvanized square pipe for guardrail. The container frame is called truss cold galvanized square pipe, used in furniture industry is called furniture cold galvanized square pipe, used for curtain wall decoration is called decorative cold galvanized square pipe, etc.

5. Specificationsof galvanized square pipe 

1. Specification of  galvanized square pipe

Galvanized square pipe Q235/Q345 50*80*(2.0-5.0 ) 3650/3800 
Galvanized Square Tube Q235/Q345 50*150*(3.0-6.0) 3650/3800 
Galvanized Square Tube Q235/Q345 50*120*3.0-6.0) 3650/3800 
Galvanized Square Tube Q235/Q345 50*100 *(1.5-5.0) 3550/3600 
galvanized square tube Q235/Q345 50*80*(2.0-5.0) 3500/3660 
galvanized square tube Q235/Q345 50*70*(1.5-5.0) 3450/3660 
galvanized square Tube Q235/Q345 40*100*(1.5-4.0) 3550/3650 
Galvanized Square Tube Q235/Q345 40*80*(0.8-5.0) 3550/3660 
Galvanized Square Tube Q235/Q345 40*60*(1.0-5.0 ) 3400/3660 
galvanized square tube Q235/Q345 40*50*(0.8-3.0) 3450/3660 
galvanized square tube Q235/Q345 30*60*(0.8-3.0) 3350/3560 
galvanized square tube Q235/Q345 30 *50*(0.8-4.0) 3350/3560 
galvanized square tube Q235/Q345 30*40*(0.8-3.0) 3350/3560 
galvanized square tube Q235/Q345 25*50*(2.5-3.0) 3460/3580 
Galvanized square tube Q235/Q345 25*40*(2.0-3.0) 3460/3580 
Galvanized square tube Q235/Q345 20*40*(0.8-3.0) 3350/3560 
Galvanized square tube Q235/Q345 20*30*( 0.8-2.5) 3440/3560 
2. Cold galvanized square pipe
name, material specification  ,
cold galvanized square pipe q235b/q345b 50*50 (50 square cold galvanized square pipe) 
cold galvanized square pipe Square cold galvanized square pipe) 
cold galvanized square pipe q235b/q345b 150*150 (150 square cold galvanized square pipe)
cold galvanized square pipe q235b/q345b 200*200 (200 square cold galvanized square pipe) 
cold galvanized Square tube q235b/q345b 250*250 (250 square cold galvanized square tube) 
cold galvanized square tube q235b/q345b 300*300 (300 square cold galvanized square tube) 
cold galvanized square tube q235b/q345b 350*350 (350 Square cold galvanized square pipe) 
cold galvanized square pipe q235b/q345b 400*400 (400 square cold galvanized square pipe)
cold galvanized square pipe q235b/q345b 450*450 (450 square cold galvanized square pipe) 
cold galvanized Square tube q235b/q345b 500*500 (500 square cold galvanized square tube)
cold galvanized square tube q235b/q345b 550*550 (550 square cold galvanized square tube) 
cold galvanized square tube q235b/q345b 600*600 (600 Square cold galvanized square tube) 

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