Square Tube

Square Tube


Negotiable Min Order Quantity Unit

Required Quantity
Place of Origin
China
Brand name
Great
Payment Terms
Negotiable
Production method
Negotiable
Shipping / Lead Time
Negotiable / Negotiable
Keyword
square tube
Category
Steel Pipes

Hunan great steel pipe co.,ltd

Membership
BIZ
Country / Year Established
China China / 1993
Business type
Manufacturer
Verified Certificate

7

Product name Square Tube Certification -
Category Steel Pipes Ingredients -
Keyword square tube Unit Size -
Brand name Great Unit Weigh -
origin China Stock -
Supply type - HS code -

Product Information

 

Square Steel Tube, Square Steel Pipe

Square hollow sections are often used for columns, however similarly to RHS sections, they are not often used as beams due to its shape that makes it difficult to bolt to other beams and vice versa. SHSs are often called “box sections”. An example is 100 x 100 x 10 SHS, which is 100 mm deep, 100 mm wide and the wall is 10 mm thick. Similarly to RHS sections, hot rolled SHSs are made at the mill as one piece, whereas cold formed SHSs are made of a flat sheet rolled at right angles and welded. It is therefore easy to note the difference, as the cold rolled SHSs have a weld all along its length.

​ 

 

Standard
 
ASTM A500, EN 10210, EN 10219, JIS G3466, BS 1387, BS 6323 PART5
 
Grades
 
S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St37, ST52
 
Out diameter
 
10*10mm - 500*500mm
 
Wall thickness
 
0.5mm - 20mm
 

 

 

Surface Conditions                                          Special Features

Hot Rolled                                                         Hard to find sizes
Hot Rolled Pickled and Oiled                                 Mitre cutting
Cold Rolled                                                        High strength steel on request
KleenKote                                                          Mult lengths

 

Standard Corner Radius(Mechanical Sizes:)

Diameter (inch)Wall Thickness (inch)Radius Tolerance (inch)
 
1/2 to 1 1/2
 
0.028
 
1/32 to 1/16
 
1/2 to 2 1/2
 
0.035
 
1/32 to 1/16
 
1/2 to 4
 
0.049
 
3/64 to 5/64
 
1/2 to 4 1/8
 
0.065
 
1/16 to 7/64
 
3/4 to 4 1/8
 
0.083
 
5/64 to 1/8
 
over 4 1/8 to 6
 
0.095
 
3/16 to 5/16
 
1 to 4 1/8
 
0.095
 
3/32 to 5/32
 
over 4 1/8 to 6
 
0.109
 
3/16 to 5/16
 
1 1/4 to 4
 
0.109
 
1/8 to 13/64
 
over 4 to 6
 
0.120
 
3/16 to 5/16
 
1 1/4 to 4
 
0.120
 
3/16 to 5/16
 
over 4 to 6
 
0.134
 
7/32 to 7/16
 
2 to 4
 
0.148
 
3/16 to 5/16
 
over 4 to 8
 
0.148
 
7/32 to 7/16
 
2 to 8
 
0.165
 
1/4 to 1/2
 
2 to 8
 
0.180
 
1/4 to 1/2
 
2 1/2 to 4
 
0.203
 
5/16 to 9/16
 
over 4 to 8
 
0.203
 
5/16 to 9/16
 
2 1/2 to 8
 
0.220
 
3/8 to 5/8
 

Standard Corner Radius(Structural Sizes:)

 

Max. 3 x Nominal Wall Thickness

 

Mechanical Sizes
 
Structural Sizes
 
Largest Nominal Outside Dimension
 
Outside Tolerance at all Sides at Corners
 
Largest Nominal Outside Dimension
 
Outside Tolerance at all Sides at Corners
 
3/16 to 5/8
 
± 0.004
 
2 1/2 and under
 
± 0.020
 
over 5/8 to 1 1/8
 
± 0.005
 
over 2 1/2 to 3 1/2
 
± 0.020
 
over 1 1/8 to 1 1/2
 
± 0.006
 
over 3 1/2 to 5 1/2
 
± 0.030
 
over 1 1/2 to 2
 
± 0.008
 
over 5 1/2
 
± 1%
 
over 2 to 3
 
± 0.010
 

 

 
over 3 to 4
 
± 0.020
 

 

 
over 4 to 6
 
± 0.020
 

 

 
over 6 to 8
 
± 0.025
 

 

 

Straightness
Mechanical Sizes: Max. 1/16" in 3 feet
Structural Sizes: Max. 1/8" x Number of feet of total length divided by 5

 

 

Wall Thickness
Mechanical & Structural Sizes: ± 10% of Nominal Wall Thickness

Squareness of Sides
Mechanical Sizes: Max: ± b = c x 0.006"
                        b = Tolerance for out-of-square
                        c = Largest external dimension across flats
Structural Sizes: Adjacent sides may deviate from 90 ° by ± 2 °

 

Maximum Twist (Mechanical & Structural Sizes)

Largest Dimension, inches
 
Max. Twist*, inches
 
over 1/2 to 1 1/2
 
0.050
 
over 1 1/2 to 2 1/2
 
0.062
 
over 2 1/2 to 4
 
0.075
 
over 4 to 6
 
0.087
 
over 4 to 8
 
0.100
 

 

Convexity & Concavity(Mechanical & Structural Sizes)

Largest Nominal O.D., Inches 
 
Tolerance ± Inches
 
2 1/2 and under
 
± 0.010
 
over 2 1/2 to 4
 
± 0.015
 
over 4 to 8
 
± 0.025
 

Structural Tubing A 500 Requirements

 

 

GradesChemical
 
Physical
 
C Max. %
 
Mn Max. %P Max. %S Max. %Cu Max. %Tensile strength, min. psi
 
Yield strength, min. psi
 
Elongation in 2 in.
 
Grade B
 
0.26
 
/0.04
 
0.050.2058,000
 
46,000
 
23
Grade C
 
0.23
 
1.35
 
0.04
 
0.050.2062,000
 
50,000
 
21

 

 

 

 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options Negotiable Shipping time Negotiable

Hunan great steel pipe co.,ltd

Country / Year Established
China China / 1993
Membership
BIZ
Business type
Manufacturer

7

President
Guoyu Yi
Address
Hunan Steel Industrial Zone,No.9 Xiangfu Road, Yuhua District, Changsha, Hunan, China
Product Category
Steel Pipes
Year Established
1993
No. of Total Employees
501-1000
Company introduction

 

Hunan Great Steel Pipe Co.,Ltd is a world-class production and service provider of submerged arc straight seam welded pipe as the first subsidiary of Shinestar Group. Hunan Great Steel Pipe Co.,Ltd pays more attention to in the pipeline engineering research areas as a pioneer of China Petroleum Pipeline & Gas Pipeline Science Research Institute, Such as: the use of oil and gas pipelines, pipe welding technology innovation, high-end plumbing materials research and development, as well as special tools technological innovation pipeline construction, pipeline corrosion protection science and technology research, science and technology research pipeline non-destructive testing, pipeline quality assessment, and research pipeline standards and so on. In the future, we will try to use new technology to create new business value and to contribute to research and product development for the pipeline. Our main products include: carbon steel seamless pipe, welded steel pipe, stainless steel pipe, coating steel pipe, which is variety types and full range specifications, moreover, strictly in accordance with international standards, like: ISO certification, CE certification. At the same time, we are able to offer value-added steel services, including: hot dip galvanized, anti-corrosion treatment, pipe cutting, or other customized services.

 

Main Markets

China China

Main Product

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