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Mild Steel Square Tube

1. Type: square steel tube, SHS tube
2. Application: Industrial Construction, Machinery/Rack/Container, etc
3. OD: 10*10mm-500*500mm, WT: 0.5-50mm, L: 0.3-18mtr
4. Standard & Grade: ASTM A500, ASTM A53, EN10210, EN10219, JIS G3466, BS1387, BS6323
5. End: Square cut, Burr removed
Availability:


What is the mild steel square tube?

The square tube is a welded hollow square-cut steel tube that is specifically designed to be used in all types of construction projects. Either the type A513 or A500 Grade B, depending on its size and wall thickness. The square steel tube shape design allows for increased rigidity and strength compared to other steel product shapes. For the grade ideal for all structural applications, general fabrication, manufacturing, and repairs. Square steel tubes can also be cut, formed, machined, and welded to your exact specification. The shape configuration allows for much greater strength and rigidity compared to angles or channels. This steel tube shape is easy to weld, cut form, and machine with proper equipment and knowledge.



Size chart of mild steel square tube

Size

Wall thickness

Size

Wall thickness

Size

Wall thickness

Size

Wall thickness

mm

mm

mm

mm

mm

mm

mm

mm

10×10

0.6-0.8

42×42

1.2-6.0

90×90

2.5-6.0

150×150

4.0-8.0

12×12

0.6-0.8

45×45

1.2-6.0

95×95

2.5-6.0

160×160

4.0-8.0

13×13

0.6-2.0

48×48

1.2-6.0

100×100

2.5-6.0

180×180

4.0-8.0

15×15

0.7-2.0

50×50

1.5-6.0

105×105

2.5-6.0

200×200

5.0-10.0

16×16

0.7-2.0

55×55

1.5-6.0

110×110

3.0-6.0

220×220

8.0-25.0

20×20

1.0-3.0

60×60

1.5-6.0

115×115

3.0-6.0

250×250

8.0-25.0

25×25

1.0-3.0

65×65

2.0-6.0

120×120

3.0-6.0

280×280

8.0-25.0

30×30

1.2-4.0

70×70

2.0-6.0

125×125

3.0-6.0

300×300

8.0-25.0

35×35

1.0-4.0

75×75

2.0-6.0

130×130

3.0-6.0

350×350

8.0-25.0

38×38

1.0-5.0

80×80

2.5-6.0

135×135

4.0-14.0

400×400

8.0-25.0

40×40

1.0-6.0

85×85

2.5-6.0

140×140

4.0-8.0

450×450

8.0-25.0



The manufacturing process of mild steel square tube

Uncoiling --- Flattening --- Shearing and butt welding --- Circle shearing --- Loop storing--- Roll forming --- High-frequency welding --- Removal of burrs --- Water cooling --- Forming --- Non-destrictive inspection --- Cutting off --- Corrosion-resistant coating --- Inspection --- Marking ---Packing and warehousing



International standard of mild steel square tube

EN 10210:S235JRH,S355J2H,S355NH,S355J0H

EN 10219:S235JRH,S355J2H,S355NH,S355J0H

ASTM A500:Gr.A,Gr.B,Gr.C



Application of mild steel square tube

  • Energy and industry

  • Automotive manufacturing

  • Offshore and shipbuilding

  • Home appliances

  • Architecture and construction

  • Medical equipment manufacturing


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