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Special Purpose Square Pipes

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API 5L Psl1/2/ASTM A53/A106 Gr.B/JIS DIN/A179/A192/A333 X42/X52/X56/X60/65 X70 Stainless/Black/Galvanized/Round Square Grooved Seamless/Welded Carbon Steel Pipe

API 5L Psl1/2/ASTM A53/A106 Gr.B/JIS DIN/A179/A192/A333 X42/X52/X56/X60/65 X70 Stainless/Black/Galvanized/Round Square Grooved Seamless/Welded Carbon Steel Pipe

US $ 200-577 / Ton FOB
1 Ton (MOQ)
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Permanent Steel Manufacturing Co., Ltd.

Hunan, China Since 2022
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Tianjin Ruitong Iron and Steel C250 Fence Galvanized Pipe Pre Galvanized Square Steel Tube Hot Fence Tube C350 Square Pipe

Tianjin Ruitong Iron and Steel C250 Fence Galvanized Pipe Pre Galvanized Square Steel Tube Hot Fence Tube C350 Square Pipe

US $ 500-650 / Ton FOB
1 Ton (MOQ)
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Tianjin RuiTong Iron & Steel Co., LTD.

Manufacturer/Factory & Trading Company

Tianjin, China Since 2021
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21.3mm~323.8mm HDG Steel Pipe Hot DIP Galvanized Seamless/Welded Steel Pipe with Round/Square Shape

21.3mm~323.8mm HDG Steel Pipe Hot DIP Galvanized Seamless/Welded Steel Pipe with Round/Square Shape

US $ 555-700 / Ton FOB
1 Ton (MOQ)
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Permanent Steel Manufacturing Co., Ltd.

Hunan, China Since 2022
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AISI 4140 4130 API 5L ASTM A106 Gr. B ASTM A53 Gr. B Carbon Seamless Steel Pipe

AISI 4140 4130 API 5L ASTM A106 Gr. B ASTM A53 Gr. B Carbon Seamless Steel Pipe

US $ 500-760 / Ton FOB
2 Tons (MOQ)
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Tianjin Boer King Steel Import and Export Co., Ltd.

Trading Company

Tianjin, China Since 2017
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Ss Round Square Cold Hot Rolled ASTM/AISI/DIN/JIS 201/304/316/409/410/430/316L/304L Stainless Steel Seamless/Welded Pipe with Pickling Ba 2b Bright Polished

Ss Round Square Cold Hot Rolled ASTM/AISI/DIN/JIS 201/304/316/409/410/430/316L/304L Stainless Steel Seamless/Welded Pipe with Pickling Ba 2b Bright Polished

US $ 480-1,860 / Piece FOB
1 Piece (MOQ)
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Wuxi Zhongxiu Stainless Steel Co., Ltd.

Jiangsu, China Since 2024
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Seamless /Aluminum /Galvanized/Black Mild/Copper /Carbon/ Welded/Square/Alloy/Titanium /Nickel/Magnesium/ Hastelloy/Stainless Steel Pipe

Seamless /Aluminum /Galvanized/Black Mild/Copper /Carbon/ Welded/Square/Alloy/Titanium /Nickel/Magnesium/ Hastelloy/Stainless Steel Pipe

US $ 15-50 / KG FOB
20 KG (MOQ)
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Tianjin Yitejia Steel Sales Co., Ltd.

Tianjin, China Since 2011
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with Excellent Performance and Competitive Price Inconel 617 Stainless Steel Square Pipe

with Excellent Performance and Competitive Price Inconel 617 Stainless Steel Square Pipe

US $ 800-900 / Ton FOB
1 Ton (MOQ)
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Shanghai Bozhong Metal Group Co., Ltd.

Shanghai, China Since 2016
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Hot Dipped Galvanized Seamless Welded Steel Pipe Galvanized Steel Tube Gi Pipe (Round, Square, Rectangle)

Hot Dipped Galvanized Seamless Welded Steel Pipe Galvanized Steel Tube Gi Pipe (Round, Square, Rectangle)

US $ 800-1,000 / Piece FOB
5 Pieces (MOQ)
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Qingdao Ironsteel International Trading Co., Ltd.

Trading Company

Shandong, China Since 2015
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Tianjin Ruitong Iron and Steel BS1387 As1074 As1163 As2053 BS4568 C350 76mm Tianjin Ruitong Square Pipe Galvanized Pipe

Tianjin Ruitong Iron and Steel BS1387 As1074 As1163 As2053 BS4568 C350 76mm Tianjin Ruitong Square Pipe Galvanized Pipe

US $ 600-650 / Ton FOB
1 Ton (MOQ)
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Tianjin RuiTong Iron & Steel Co., LTD.

Manufacturer/Factory & Trading Company

Tianjin, China Since 2021
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API 5L/2/ASTM A53/A106 Gr. B/JIS DIN/A179/A192/A333 X42/X52/X56 Stainless/Black/Galvanized/Aluminum/Round Square Grooved Seamless/Welded Carbon Steel Tube Pipe

API 5L/2/ASTM A53/A106 Gr. B/JIS DIN/A179/A192/A333 X42/X52/X56 Stainless/Black/Galvanized/Aluminum/Round Square Grooved Seamless/Welded Carbon Steel Tube Pipe

US $ 650-920 / Ton FOB
1 Ton (MOQ)
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Jinan Jiujin Steel Co., Ltd.

Shandong, China Since 2022
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Seamless Cold Rolled Carbon Steel Round Pipes (A106/St37)

Seamless Cold Rolled Carbon Steel Round Pipes (A106/St37)

US $ 0.46-0.5 / kg FOB
5,000 kg (MOQ)
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Shandong Zhuosheng Steel Limited

Trading Company

Shandong, China Since 2022
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Square Tube Rhs 20X20 25X25 Hollow Cross-Section Pipe 40X40 50X50 20X40 Rectangular Steel Pipe

Square Tube Rhs 20X20 25X25 Hollow Cross-Section Pipe 40X40 50X50 20X40 Rectangular Steel Pipe

US $ 199-550 / Ton FOB
1 Ton (MOQ)
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Hongye Steel (Shandong) Co., Ltd.

Trading Company

Shandong, China Since 2023
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API BS 729 ERW Galvanized Square Steel API Oil Structure Hollow Section Square Rectangular Pipe with Welding Service

API BS 729 ERW Galvanized Square Steel API Oil Structure Hollow Section Square Rectangular Pipe with Welding Service

US $ 600-800 / Ton FOB
1 Ton (MOQ)
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Qingdao L&C Import and Export Co., Ltd.

Trading Company

Shandong, China Since 2018
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3mm 100mm 500mm 1000mm 2000mm 2200mm Outer Diameter Seamless ERW Stainless Steel Welded Pipe Factory

3mm 100mm 500mm 1000mm 2000mm 2200mm Outer Diameter Seamless ERW Stainless Steel Welded Pipe Factory

US $ 1.13-2.89 / kg FOB
1,000 kg (MOQ)
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Jiangsu Jinmingxin Metal Technology Co., Ltd.

Jiangsu, China Since 2023
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ASTM A106 A36 A53 Spiral Welded Black Mild Carbon Steel Tube Round Square Rectangle SSAW Sawl API 5L CS ERW Welded Steel Pipe

ASTM A106 A36 A53 Spiral Welded Black Mild Carbon Steel Tube Round Square Rectangle SSAW Sawl API 5L CS ERW Welded Steel Pipe

US $ 470-500 / Ton FOB
10 Tons (MOQ)
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Shandong Huazhu Metal Manufacture Co., Ltd.

Trading Company

Shandong, China Since 2022
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DIN JIS A36 S235 Q345 Round Steel Tube Pipe Carbon Steel Galvanized Steel Round Square Tube Pipe Spiral Welded Pipe

DIN JIS A36 S235 Q345 Round Steel Tube Pipe Carbon Steel Galvanized Steel Round Square Tube Pipe Spiral Welded Pipe

US $ 299-499 / Ton FOB
50 Tons (MOQ)
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Shandong Zhuosheng Steel Limited

Trading Company

Shandong, China Since 2022
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China Stainless Steel Decorative Hollow Pipe Stainless Steel Seamless/Welded Round/Square Tube

China Stainless Steel Decorative Hollow Pipe Stainless Steel Seamless/Welded Round/Square Tube

US $ 1,150-1,180 / Ton FOB
1 Ton (MOQ)
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Zhejiang Zhong Ding Iron and Steel Co., Ltd.

Trading Company

Zhejiang, China Since 2022
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Cold Drawn ASTM AISI JIS Ss201 304 304L 316 316L 310S 430 904L 2205 Duplex Mirror/Polished Seamless/Welded Stainless Steel Round/Square/Rectangular Pipe

Cold Drawn ASTM AISI JIS Ss201 304 304L 316 316L 310S 430 904L 2205 Duplex Mirror/Polished Seamless/Welded Stainless Steel Round/Square/Rectangular Pipe

US $ 480-1,860 / Piece FOB
1 Piece (MOQ)
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Wuxi Zhongxiu Stainless Steel Co., Ltd.

Jiangsu, China Since 2024
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Large Diameter Pipe ASTM A106 Gr. B Q235 A53 Sch40 Hot Rolled/Cold Drawn Galvanized Gi/Gl Black Iron Round/Square Carbon Seamless Steel Precision Ss Pipe

Large Diameter Pipe ASTM A106 Gr. B Q235 A53 Sch40 Hot Rolled/Cold Drawn Galvanized Gi/Gl Black Iron Round/Square Carbon Seamless Steel Precision Ss Pipe

US $ 600-980 / Ton FOB
1 Ton (MOQ)
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Shandong Great Steel Co., Ltd

Manufacturer/Factory & Trading Company

Shandong, China Since 2023
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Cold Rolled 201/202/301/304/304L/305/309S/310S/316L /904L/409 Square Industrial Decorative Stainless Steel Pipe

Cold Rolled 201/202/301/304/304L/305/309S/310S/316L /904L/409 Square Industrial Decorative Stainless Steel Pipe

US $ 1,250-1,850 / Ton FOB
1 Ton (MOQ)
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Jiangsu Hengshuntai Steel Co., Ltd.

Jiangsu, China Since 2021
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DIN17175/ASTM A233 ERW Welded Steel Pipe Iron Black Tube Gi Galvanized Steel Pipe for Construction

DIN17175/ASTM A233 ERW Welded Steel Pipe Iron Black Tube Gi Galvanized Steel Pipe for Construction

US $ 420-720 / Ton FOB
5 Tons (MOQ)
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TIANJIN BOER KING STEEL CO., LIMITED

Tianjin, China Since 2017
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Hot Rolled Rectangular Steel Pipe Factory High Quality Square Iron Tube

Hot Rolled Rectangular Steel Pipe Factory High Quality Square Iron Tube

US $ 500-650 / Ton FOB
1 Ton (MOQ)
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Tianjin RuiTong Iron & Steel Co., LTD.

Manufacturer/Factory & Trading Company

Tianjin, China Since 2021
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Steel Galvanized Square Tubes/Seamless/Coated/Rectangular Steel Pipes/Colded Rolled/Hot Rolled/Stainless/Alloy/A36/Hollow Section 60X60mm Q345 Q235

Steel Galvanized Square Tubes/Seamless/Coated/Rectangular Steel Pipes/Colded Rolled/Hot Rolled/Stainless/Alloy/A36/Hollow Section 60X60mm Q345 Q235

US $ 199-499 / Ton FOB
1 Ton (MOQ)
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Hongye Steel (Shandong) Co., Ltd.

Trading Company

Shandong, China Since 2023
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About Special Purpose Square Pipes FAQ

  • QWhat are the advantages of purchasing steel pipes and tubes in wholesale quantities?

    Our Special Purpose Square Pipes offers exceptional quality and style within the Steel Pipe & Tube category.Bulk purchasing of steel pipes and tubes offers cost savings, availability in large quantities, and consistent product quality. Wholesale orders often come with discounts and customization options, allowing you to procure high-quality materials from trusted suppliers at competitive prices.

  • QHow can I find trustworthy suppliers of steel pipes and tubes in China?

    The Special Purpose Square Pipes is a standout piece in our Steel Pipe & Tube collection.When looking for reliable suppliers in China, consider using platform tools, attending industry exhibitions, and consulting business directories. Verify the supplier's qualifications, request samples, and conduct thorough due diligence to ensure product quality and delivery reliability.

  • QWhat are the common types of steel used in manufacturing steel pipes and tubes?

    The Special Purpose Square Pipes is an essential part of our Steel Pipe & Tube offerings.Steel pipes and tubes are often made using carbon steel, stainless steel, and alloy steel. Each type offers unique properties, such as strength, corrosion resistance, and heat resistance. It is essential to consult with a reputable supplier for guidance on the best material for your specific applications.

Rhs Hollow Section Rectangular Zinc Coating Gi Iron Tube Carbon Hot Dipped Zn Coated ASTM A500 A36 Structural Shs Ms Square Tube Galvanized Steel Pipe

Rhs Hollow Section Rectangular Zinc Coating Gi Iron Tube Carbon Hot Dipped Zn Coated ASTM A500 A36 Structural Shs Ms Square Tube Galvanized Steel Pipe

US $ 500-800 / Ton FOB
10 Tons (MOQ)
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Shandong Heng Steel Group Co., Ltd.

Shandong, China Since 2014
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Building Material Schedule 40 Carbon Steel Welded SSAW LSAW Pipe

Building Material Schedule 40 Carbon Steel Welded SSAW LSAW Pipe

US $ 600-1,250 / Ton FOB
1 Ton (MOQ)
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Shandong Great Steel Co., Ltd

Manufacturer/Factory & Trading Company

Shandong, China Since 2023
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Triangular Hexagonal Lemon Rectangular Tube Pto Power Output Drive Shaft Special-Shaped Gear Steel Tube Agricultural Machinery Tube Steel Pipes

Triangular Hexagonal Lemon Rectangular Tube Pto Power Output Drive Shaft Special-Shaped Gear Steel Tube Agricultural Machinery Tube Steel Pipes

US $ 490-730 / Ton FOB
5 Tons (MOQ)
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Shandong Meide Import and Export Co., Ltd.

Shandong, China Since 2023
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Factory Direct Sale Pre Galvanised Steel Gp Hollow Section Gi Pipe Square

Factory Direct Sale Pre Galvanised Steel Gp Hollow Section Gi Pipe Square

US $ 550-700 / Ton FOB
1 Ton (MOQ)
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Bazhou GY Steel Pipe Manufacturing Co., Ltd.

Manufacturer/Factory & Trading Company

Tianjin, China Since 2019
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Square Tube Gi Tube Gi Pipe Galvanized Steel Pipe

Square Tube Gi Tube Gi Pipe Galvanized Steel Pipe

US $ 500-1,500 / Ton FOB
5 Tons (MOQ)
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Shandong Tongmao Special Steel Co., Ltd.

Shandong, China Since 2020
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Custom Length 304 Grade Stainless Steel Square Pipe Price

Custom Length 304 Grade Stainless Steel Square Pipe Price

US $ 1,500-2,000 / Ton FOB
1 Ton (MOQ)
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Wuxi Qingfa Tong Metal Products Co., Ltd.

Jiangsu, China Since 2022
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Ss Welded Pipe Square AISI 201 304 316L Golden Colored Stainless Steel Tube

Ss Welded Pipe Square AISI 201 304 316L Golden Colored Stainless Steel Tube

US $ 2,500-2,800 / Ton FOB
10 Tons (MOQ)
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Tianjin ZYTC Alloy Technology Co., Ltd

Tianjin, China Since 2013
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SS304 316L 316 Stainless Steel Pipe - ASTM Certified Round Square Seamless Tube & Welded Inox Pipe Supplier

SS304 316L 316 Stainless Steel Pipe - ASTM Certified Round Square Seamless Tube & Welded Inox Pipe Supplier

US $ 110-150 / Ton FOB
1 Ton (MOQ)
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Jiangsu Zhongxing Nickel Alloy Material Co., Ltd.

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2025
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High Quality of Welded Steel Tube Pipe for Building Material

High Quality of Welded Steel Tube Pipe for Building Material

US $ 540 / Ton FOB
3 Tons (MOQ)
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Shanghai Changzeng Metal Co., Ltd.

Shanghai, China Since 2016
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Pre-Painted Black Square Pipe 25X25X1.0mm Interior Decoration UV-Resistant Coating

Pre-Painted Black Square Pipe 25X25X1.0mm Interior Decoration UV-Resistant Coating

US $ 560-600 / metric tons FOB
5 metric tons (MOQ)
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Credit Import and Export Trading Co., Ltd.

Manufacturer/Factory & Trading Company

Tianjin, China Since 2025
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6m Length 304/316/310 Stainless Steel Seamless/Welded Exhaust Pipe with Various Shape

6m Length 304/316/310 Stainless Steel Seamless/Welded Exhaust Pipe with Various Shape

US $ 1,000-3,000 / Ton FOB
1 Ton (MOQ)
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WUXI BAOWANG STEEL CO., LTD.

Jiangsu, China Since 2015
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Customizable Round Lingchuang Well Seaworthy Package: PVC+ Waterproof Paper Square Seamless Stainless Steel Pipe

Customizable Round Lingchuang Well Seaworthy Package: PVC+ Waterproof Paper Square Seamless Stainless Steel Pipe

US $ 1.35-4.58 / kilograms FOB
1 kilograms (MOQ)
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Lingchuang Iron and Steel Group Co., Ltd

Trading Company

Shandong, China Since 2023
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Stainless Steel Decorative Tube Mirror Polish Brushed Welded Pipe Square Round Shape

Stainless Steel Decorative Tube Mirror Polish Brushed Welded Pipe Square Round Shape

US $ 950-3,500 / Ton FOB
15 Tons (MOQ)
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Shandong Juhuo Special Steel Co., Ltd

Trading Company

Shandong, China Since 2025
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