Black square tube
Classification :
PRODUCT DETAILS
Description
Square tube is formed from coil and then ran through a series of dies. It's welded from the inside to form its shape. Square tubes are generally used for maintenance and structural purposes.
Some examples of square tubing applications would be building construction, railings, and sign posts. They are measured by their outside dimensions and their wall thickness.
Square Tube is available in the following metal types:
Alloy Steel
Mild Steel
Carbon Steel
Stainless Steel
Square tube has similar uses to RHS and is used for both industrial and construction applications. Square section RHS is available in the same thicknesses as RHS and dimensions range from 20mm x 20mm to 400 mm x 400 mm.
Standard
ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes
| Grade Designation | Chemistry-Ladle Analysis | |||
| Carbon | Manganese | Phosporous | Sulfur | |
| A501(A36) | 0.26% max | 0.04% max | 0.05% max | |
| A500A | 0.26% max | 0.04% max | 0.05% max | |
| A500B | 0.26% max | 0.04% max | 0.05% max | |
| A500C | 0.23% max | 1.35% max | 0.04% max | 0.05% max |
| Copper, when copper steel is specified,0.20% minimum. | ||||
| Mechanical Properties | ||||
| Grade Designation | Grade | Tensile Strength | Yield Strength Minimum | Elongation In 2 Inches Minimum |
| Condition | Minimum | |||
| A501(A36) | Hot Formed | 58,000 psi | 36,000 psi | 23% |
| A500A | Cold Formed | 45,000 psi | 39,000 psi | 25% |
| A500B | Cold Formed | 58,000 psi | 46,000 psi | 23% |
| A500C | Cold Formed | 62,000 psi | 50,000 psi | 21% |
Specification
| Size by Inch (diameter) | Thickness | Sizes by MM (diameter) | Thickness | ||
| inch | inch | mm | mm | ||
| 1/2"x1 /2" | 0.065" | 16mm×16mm | 0.4mm~1.5mm | ||
| 3/4"x 3/4" | 0.049" | 18mm×18mm | 0.4mm~1.5mm | ||
| 0.065" | 20mm×20mm | 0.4mm~3mm | |||
| 0.083" | 22mm×22mm | 0.4mm~3mm | |||
| 0.120" | 25mm×25mm | 0.6mm~3mm | |||
| 1"x1" | 0.049" | 30mm×30mm | 0.6mm~4mm | ||
| 0.058" | 32mm×32mm | 0.6mm~4mm | |||
| 0.065" | 34mm×34mm | 1mm~2mm | |||
| 0.072" | 35mm×35mm | 1mm~4mm | |||
| 0.083" | 38mm×38mm | 1mm~4mm | |||
| 0.095" | 40mm×40mm | 1mm~4.5mm | |||
| 0.109" | 44mm×44mm | 1mm~4.5mm | |||
| 0.120" | 45mm×45mm | 1mm~5mm | |||
| 1 1/8"×1 1/8" | 0.035" | 50mm×50mm | 1mm~5mm | ||
| 0.049" | 52mm×52mm | 1mm~5mm | |||
| 0.065" | 60mm×60mm | 1mm~5mm | |||
| 0.109" | 70mm×70mm | 2mm~6mm | |||
| 0.120" | 75mm×75mm | 2mm~6mm | |||
| 1 1/4"x1 1/4" | 0.049" | 76mm×76mm | 2mm~6mm | ||
| 0.065" | 80mm×80mm | 2mm~8mm | |||
| 0.072" | 85mm×85mm | 2mm~8mm | |||
| 0.083" | 90mm×90mm | 2mm~8mm | |||
| 0.109" | 95mm×95mm | 2mm~8mm | |||
| 0.120" | 100mm×100mm | 2mm~8mm | |||
| 0.135" | 120mm×120mm | 4mm~8mm | |||
| 0.156" | 125mm×125mm | 4mm~8mm | |||
| 0.188" | 130mm×130mm | 4mm~8mm | |||
| 1 1/2"x1 1/2" | 0.049" | 140mm×140mm | 6mm~10mm | ||
| 0.065" | 150mm×150mm | 6mm~10mm | |||
| 0.072" | 160mm×160mm | 6mm~10mm | |||
| 0.083" | 180mm×180mm | 6mm~12mm | |||
| 0.109" | 200mm×200mm | 6mm~30mm | |||
| 0.120" | 220mm×220mm | 6mm~30mm | |||
| 0.140" | 250mm×250mm | 6mm~30mm | |||
| 0.188" | 270mm×270mm | 6mm~30mm | |||
| 0.250" | 280mm×280mm | 6mm~30mm | |||
| 1 3/4"x1 3/4" | 0.065" | 300mm×300mm | 8mm~30mm | ||
| 0.083" | 320mm×320mm | 8mm~30mm | |||
| 0.095" | 350mm×350mm | 8mm~30mm | |||
| 0.109" | 380mm×380mm | 8mm~30mm | |||
| 0.120" | 400mm×400mm | 8mm~30mm | |||
| 0.188" | 420mm×420mm | 10mm~30mm | |||
| 2"x2" | 0.049" | 450mm×450mm | 10mm~30mm | ||
| 0.065" | 480mm×480mm | 10mm~30mm | |||
| 0.083" | 500mm×500mm | 10mm~30mm | |||
| 0.109" | 550mm×550mm | 10mm~40mm | |||
| 0.120" | 600mm×600mm | 10mm~40mm | |||
| 0.145" | 700mm×700mm | 10mm~40mm | |||
| 0.165" | 800mm×800mm | 10mm~50mm | |||
| 0.188" | 900mm×900mm | 10mm~50mm | |||
| 0.250" | 1000mm×1000mm | 10mm~50mm | |||
| 0.312" | |||||
| 2 1/4"x2 1/4" | 0.188" | ||||
| 0.250" | |||||
| 2 1/2"x2 1/2" | 0.083" | ||||
| 0.109" | |||||
| 0.120" | |||||
| 0.188" | |||||
| 0.250" | |||||
| 0.312" | |||||
Dimensional Tolerances
| Outside Diameter | Twist | Maximum twist per 3 feet of length | |||
| Largest outside dimension | Outside tolerance including convexity and concavity | Longest outside dimension | |||
| up to 2 1/2" | ±.020" | 2" to 2 1/2" inclusive | .062" | ||
| over 21/2" to 31/2"inclusive | ±.025" | over 21/2" to 4" inclusive | .075" | ||
| over 31/2" to 51/2"inclusive | ±0.030" | over 4" to 6" inclusive | .087" | ||
| over 51/2" | ±1% | over 6" to 8" inclusive | 100" | ||
| Tolerances include allowance for convexity or concavity. For rectangular sections, the tolerance calculated for the larger flat dimension shall also apply to the smaller flat dimension. This tolerance may be increased 50 percent when applied to the smaller dimension, if the ratio of cross sectional dimension is between 1.5 and 3, and 100 percent when the ratio exceeds 3. | over 8" | 112" | |||
| Straightness: Permissable variation shall be 1/8" times the number of feet of total length divided by 5: |
|||||
| .125"x(total length)÷5 | |||||
| Wall Thickness | Squareness of Sides | ||||
| Maximum allowable variation | ±10% | Adjacent sides may deviate from 90° by a tolerance of plus or minus 2 degrees maximum. | |||
| (wall thickness is to be measured at the center of the flat, exclusive of the weld area, and not at the corners) | |||||
| Worner Radii | Flash | ||||
| The radius of any outside corner shal not exceed three times the specified wall thickness | Structural tubing usually is supplied flash-in. The height of the flash will vary with the wall thickness of the tube. | ||||
PACKAGING AND SHIPPING
CUSTOMER VISIT
Customer Visit
Customer Visit
Customer Visit
Customer Visit
Customer Visit
Customer Visit
Customer Visit
Customer Visit
Customer Visit
Customer Visit
FACTORY WORKSHOP
APPLICATION FIELD
Energy Transmission
Construction Engineering
Energy Transmission
Power Equipment
Interior Decoration
Architectural Decoration
FAQ
Do you have a factory?
Can you provide samples?
What services do you provide? A: OEM, ODM.
Which port do you ship from?
What is your delivery time?
What types of payment methods do you support?
RELATED PRODUCTS