Square tubes is a form of tube type, people have a different name on it, called the rectangular tubes, rectangular tubes, square tubes, welded square tube, because it has a lot of kinds of material of material can make the tube body, usually square tube is formed after unpacking, kaiping, bending strip welding pipe, again by the mechanism of rolling into a square tube.
| Material Grade |
Q195,SS330,ST37,ST42,Q235,SS400,S235JR,Q345,S355JR,SS500,ST52,SGCC,SGCH,G550,
DX51D,DX52D,DX53D,S280GD,S350GD |
| Standard | GB,JIS,ASTM,BS,DIN,... |
| Surface | Pre-galvanized, Hot dipped galvanized, Electro galvanized, Black, Painted, Threaded, Engraved, Socket. |
| Zinc Coating | usually 200g/m2 (30um) or as required 200 to 500g/m2 (30 to 70um) |
| OD |
Round Pipe: 4mm-270mm
;
Square Pipe : 10mm*10mm~500mm*500mm; Rectangular Pipe :10mm*20mm~400mm*600mm |
| Length | 1-12m or as customers' requirement |
| Wall Thickness | 0.3mm-30mm |
| Application | general engineering structure to cars, Bridges, ships, boilers ,pressure vessels and other manufacturing… |
| Trade Terms | EXW,FOB,CIF CFR |
| Loading Port | Shanghai port, Tianjin port, Qindao port |
| Payment terms | 30%T/T Advance + 70% Balance |
| MOQ | 1ton |
| Packing Detail | Standard export package or customized requirements are accepted |
| Delivery time | Usually 7-15 working days after the receipt of 30% deposit |
| Samples | Free samples are provided but the freight is borne by the buyer |
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Square and Rectangular Steel Pipe size chart
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Square Hollow Section
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Rectangular Hollow Section
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Thickness
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20*20 25*25 30*30
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20*40 30*40
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1.2-3.0
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40*40 50*50
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30*50 25*50 30*60 40*60
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1.2-4.75
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60*60
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50*70 40*80
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1.2-5.75
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70*70 80*80 75*75 90*90 100*100
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60*80 50*80 100*40 120*80
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1.5-5.75
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120*120 140*140 150*150
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160*80 100*150 140*80 100*180 200*100
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2.5-10.0
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160*160 180*180 200*200
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200*150 250*150
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3.5-12.0
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250*250 300*300 400*200 350*350 350*300
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250*200 300*200 350*200 350*250 450*250 400*300 500*200
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4.5-15.75
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400*400 280*280 450*300 450*200
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400*350 400*250 500*250 500*300 400*600
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5.0-20.0
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Square and rectangular hollow section pipe steel tube PACKING AND DELIVERY:
1. OD 300mm and below In hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles
2. above OD 300mm in bulk or according to custom opinion
3. 25 tons/container and 5 tons/size for a trial order;
4. For 20" container the max length is 5.8m;
5. For 40" container the max length is 11.8m.
Galvanized square pipes are widely used in:
Wuxi Jianbanghaoda Steel Co., Ltd. is a sophisticated manufacturer of steel products. It's located in Wuxi, which is the biggest production base and distribution center of steel products in China , it's also near to Shanghai. We have many faithful clients in Europe, South America, Mid-East, Asia and etc. We have a wide range of steel products, such as stainless steel, carbon steel, alloy steel and etc. The annual export volume is about 1000,000 tons. We promised almost all inquiry will be dealed with within 3 hours. "Punctuality, Integrity, Humanization service" has always been the development principle that strictly adhered by our company and all stuff all the time.
OUR SERVICE: