Square/Rectangle Seamless/Welded Steel Pipes Square Tubes

• Customization: Available
• Type: Seamless/Welded
• Technique: Cold Drawn, ERW
• Model NO.: square pipe
• Material: Carbon Steel, Alloy Steel,
• Surface Treatment: Bare Pipe, Black Pipe
• Usage: Construction & Decoration, Special Purpose
• Section Shape: Square, Rectangle
• Length: 6meters, 9meters, 12meters
• Surface: Black Painting, Bare Pipe
• Size: 20mm~600mm
• Thickness: 2mm~20mm
• Transport Package: Standard Seaworthy Packing
• Specification: ASTM, JIS, DIN
• Origin: China
• HS Code: 73066100
• Production Capacity: 2000tons Per Month

Product Description

Seamless/welded square pipes
Standard: ASTM A500, JIS G3466, EN10210, GB/T6728-2002, GB/T6725-2002
Steel grade: Gr.B, Gr.C, Q195, Q235, SS400, 20#, 45#, Q345B, etc
Size tolerance: +/-0.2mm
Shape of pipe: Square tube, rectangle tubes
Type of pipe: Seamless and welded

 

Main sizes we can spply:

Square tube (mm)		Rectangle tube (mm)
16×16×0.4~1.5	380×380×8.0~14.0	10×20×0.6~1.5	250×150×6~12.0
18×18×0.4~1.5	400×400×8.0~14.0	14×21×0.6~1.5	250×100×6~12.0
20×20×0.4~1.5	420×420×10.0~14.0	15×30×1.5~1.5	250×200×6~12.0
25×25×0.6~2.0	450×450×10.0~14.0	15×38×0.6~1.5	300×150×6~12.0
30×30×0.6~4.0	480×480×10.0~14.0	20×30×0.6~2.0	300×200×6~12.0
34×34×1.0~2.0	500×500×10.0~14.0	20×40×0.8~2.0	300×250×6~12.0
35×35×1.0~4.0		20×50×1.0~2.0	400×250×8~12.0
38×38×1.0~4.0	550×550×10.0~40.0	22×35×0.9~2.0	400×300×8~12.0
40×40×1.0~4.5	600×600×10.0~40.0	25×40×0.9~3.75	450×200×8~12.0
44×44×1.0~4.5	700×700×10.0~40.0	25×65×1.0~2.0	450×250×8~12.0
45×45×1.0~5.0	800×800×10.0~50.0	30×40×1.0~3.75	400×300×8~12.0
50×50×1.0~5.0	900×900×10.0~50.0	30×45×1.0~3.75	400×350×8~12.0
60×60×1.5~5.0	1000×1000×10.0~50.0	30×50×1.0~4.0	500×200×10~12.0
70×70×2.0~6.0		30×60×1.0~4.5	500×250×10~12.0
75×75×2.0~6.0		40×50×1.0~4.5	500×300×10~12.0
80×80×2.0~6.0		40×60×1.0~5.0	500×350×10~12.0
85×85×2.0~6.0		40×80×1.5~5.0	500×400×10~12.0
95×95×2.0~8.0		40×100×2.0~5.0	500×450×10~12.0
100×100×2.0~8.0		50×60×2.0~5.0
120×120×4.0~8.0		50×80×2.0~5.0	600×200×10~28.0
150×150×6.0~10.0		50×100×2.0~8.0	600×400×10~28.0
180×180×6.0~12.0		60×80×2.0~6.0	600×500×10~28.0
200×200×6.0~12.0		80×100×2.0~8.0	800×400×10~28.0
220×220×6.0~14.0		120×60×2.5~10.0	800×600×10~28.0
250×250×6.0~14.0		120×80×2.5~10.0	800×700×10~28.0
280×280×6.0~14.0		150×100×2.5~12.0	1000×400×10~28.0
300×300×8.0~14.0		180×150×2.5~12.0	1000×500×10~28.0
320×320×8.0~14.0		200×100×4~12.0	1000×600×10~28.0
350×350×8.0~14.0		200×150×4~12.0	1000×800×10~28

Mechanical character & Chemical element of normal material:

Material Chemical Composition (%)	Q195	C	Mn	Si	S	P
		0.06-0.12	0.25-0.50	≤0.30	≤0.050	≤0.045
		Tensile strength: 315-430(Mpa)
		Yield strength:195(Mpa)
		Elongation:33
	Q235	C	Mn	Si	S	P
		0.12-2.0	0.3-0.70	≤0.30	≤0.045	≤0.045
		Tensile strength: 375-460(Mpa)
		Yield strength:235(Mpa)
		Elongation:26
	Q345	C	Mn	Si	S	P	V
		≤0.20	≤1.70	≤0.55	≤0.040	≤0.040	0.02-0.15
		Tensile strength: 470-630(Mpa)
		Yield strength:345(Mpa)
		Elongation:21