Gold Member Since 2015
Audited Supplier
Qingdao Ironsteel International Trading Co., Ltd.

Steel Hollow Section, Square Steel Pipe, Square Steel Tube manufacturer / supplier in China, offering High Quality Seamless Square Pipe by Grade Q345b, ASTM A213/A312 Welded Stainless Steel Pipe, 304 316L ANSI Standard Forged Steel Flange Dn10~Dn4200 and so on.

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Supplier Homepage Product square and rectangle steel pipe High Quality Seamless Square Pipe by Grade Q345b

High Quality Seamless Square Pipe by Grade Q345b

FOB Price: US $450-600 / Ton
Min. Order: 10 Tons
Min. Order FOB Price
10 Tons US $450-600/ Ton
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Production Capacity: 2000tons Per Month
Transport Package: Standard Seaworthy Packing
Payment Terms: T/T
Basic Info
  • Model NO.: 300mm*300mm
  • Technique: Extruded
  • Surface Treatment: Bare Pipe, Black Pipe
  • Section Shape: Square, Rectangle
  • Size: 200mm~1000mm
  • Delivery State: Anti-Rust Treatment
  • Specification: EN, ASTM A500, JIS, GB
  • HS Code: 73066100
  • Type: Seamless
  • Material: Carbon Steel
  • Usage: Machinery Industry, Construction & Decoration, Special Purpose
  • Length: 6meters, 9meters, 12meters
  • Steel Grade: S275j0, S275j2, Q235B,Q345b, Gr.B
  • Trademark: Iron&steel
  • Origin: China
Product Description
EN Standard Seamless Square Hollow Section/ square steel pipe
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
Shape of pipe: Square tube, rectangle tubes
Type of pipe: Seamless and welded
High Quality Seamless Square Pipe by Grade Q345b
High Quality Seamless Square Pipe by Grade Q345b
High Quality Seamless Square Pipe by Grade Q345b
Main sizes we can spply:
Square tube (mm)Rectangle tube (mm)
16×16×0.4~1.5380×380×8.0~14.010×20×0.6~1.5250×150×6~12.0
18×18×0.4~1.5400×400×8.0~14.014×21×0.6~1.5250×100×6~12.0
20×20×0.4~1.5420×420×10.0~14.015×30×1.5~1.5250×200×6~12.0
25×25×0.6~2.0450×450×10.0~14.015×38×0.6~1.5300×150×6~12.0
30×30×0.6~4.0480×480×10.0~14.020×30×0.6~2.0300×200×6~12.0
34×34×1.0~2.0500×500×10.0~14.020×40×0.8~2.0300×250×6~12.0
35×35×1.0~4.0 20×50×1.0~2.0400×250×8~12.0
38×38×1.0~4.0550×550×10.0~40.022×35×0.9~2.0400×300×8~12.0
40×40×1.0~4.5600×600×10.0~40.025×40×0.9~3.75450×200×8~12.0
44×44×1.0~4.5700×700×10.0~40.025×65×1.0~2.0450×250×8~12.0
45×45×1.0~5.0800×800×10.0~50.030×40×1.0~3.75400×300×8~12.0
50×50×1.0~5.0900×900×10.0~50.030×45×1.0~3.75400×350×8~12.0
60×60×1.5~5.01000×1000×10.0~50.030×50×1.0~4.0500×200×10~12.0
70×70×2.0~6.0 30×60×1.0~4.5500×250×10~12.0
75×75×2.0~6.0 40×50×1.0~4.5500×300×10~12.0
80×80×2.0~6.0 40×60×1.0~5.0500×350×10~12.0
85×85×2.0~6.0 40×80×1.5~5.0500×400×10~12.0
95×95×2.0~8.0 40×100×2.0~5.0500×450×10~12.0
100×100×2.0~8.0 50×60×2.0~5.0 
120×120×4.0~8.0 50×80×2.0~5.0600×200×10~28.0
150×150×6.0~10.0 50×100×2.0~8.0600×400×10~28.0
180×180×6.0~12.0 60×80×2.0~6.0600×500×10~28.0
200×200×6.0~12.0 80×100×2.0~8.0800×400×10~28.0
220×220×6.0~14.0 120×60×2.5~10.0800×600×10~28.0
250×250×6.0~14.0 120×80×2.5~10.0800×700×10~28.0
280×280×6.0~14.0 150×100×2.5~12.01000×400×10~28.0
300×300×8.0~14.0 180×150×2.5~12.01000×500×10~28.0
320×320×8.0~14.0 200×100×4~12.01000×600×10~28.0
350×350×8.0~14.0 200×150×4~12.01000×800×10~28
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