Liaocheng Development Zone Ruixing Steel Pipe Manufacturing Co., Ltd.

Seamless square tube

Square tube size: 10*10mm-500*500mm. WT: 0.5-20mm L: 0.3-18mtr
Standard & Grade: EN 10210:S235JRH,S355J2H,S355NH,S355J0H
EN 10219:S235JRH,S355J2H,S355NH,S355J0H
ASTM A500:Gr.A,Gr.B,Gr.C
Surface:Black bared ,can be galvanized,oiled,painted,powdered.
Packing: Waterproof plastic bag,bundle with strip

+8615864396235

jane@ruixingmetal.com

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Product Details

Description

A seamless square tube is formed from the coil and then runs 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 signposts. They are measured by their outside dimensions and their wall thickness.

Square Tube is available in the following metal types:

Alloy Steel

Mild Stee

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 20 mm x 20 mm to 400 mm x 400 mm.

Specification&Standard

Size by Inch (diameter)	Thickness	Sizes by MM (diameter)	Thickness
inch	inch	mm	mm
1/2" x 1/2"	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" x 1"	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" x 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" x 1 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" x 1 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" x 1 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" x 2"	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" x 2 1/4"	0.188"
2 1/4" x 2 1/4"	0.250"
2 1/2" x 2 1/2"	0.083"
	0.109"
	0.120"
	0.188"
	0.250"
	0.312"

Dimensional Tolerances

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	±.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.

ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes

Grade Designation	Chemistry-Ladle Analysis
Grade Designation	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
Grade Designation	Condition	Minimum	Yield Strength Minimum	Elongation In 2 Inches 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%

APPLICATION FIELD

The products distributed by our company are guaranteed by the manufacturer, and have a complete pre-sale, in-sale and after-sales service system. Our company has a strong standing stock of thousands of tons, sufficient supply and complete specifications. It has formed an annual inventory turnover of more than 9,000 tons and more than 800 specifications.

mechanical

boiler plant

power plant

Chemical plant

Oil Pipelines

refrigeration equipment

Water pipes

Bearing

chemical plant

Natural Gas Pipeline

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