Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150

  • Audited Supplier
  • 5 yrs

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Product Highlights

  • Wide Size Range: Sizes from 15x20mm to 300x200mm, with other sizes customizable.
  • Multiple Surface Options: Black painted, oil anti-rust, galvanized, FBE, 3PE, PE, or as requested.
  • Diverse Application: Suitable for pipelines, vessels, equipment, fittings, and steel structures.
  • Flexible Payment: Supports T/T, L/C, Western Union, PayPal, and small-amount payments.
  • Fast Delivery: 5-10 days for stock items; 10-15 days for non-stock items.
  • Customization Available: Custom sizes and surface treatments available based on customer samples.
  • Multiple Welding Tech: Available via ERW, EFW, or DSAW manufacturing techniques.
  • Standard Compliance: Meets AISI, JIS, ASTM, DIN, GB standards with ABS, RoHS, UL certifications.

Product Images of Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150

Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 pictures & photos
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 pictures & photos
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 pictures & photos
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 pictures & photos
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 pictures & photos
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 pictures & photos
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
  • Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
    Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
  • Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
    Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
  • Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
    Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
  • Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
    Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
  • Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
    Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
  • Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
    Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150

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Product Description

Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Carbon steel pipe is divided into hot rolled and cold rolled two types. 
 
Hot rolled carbon steel pipe is divided into steel tube, low and medium pressure boiler tube, high pressure boiler tube, alloy steel tube, stainless steel tube, petroleum cracking pipe, geological steel tube and other steel pipe etc. 
 
Cold-rolled carbon steel pipe in addition to general steel tube, low medium pressure boiler pipe, high pressure boiler tube, alloy steel, stainless steel pipe, oil cracking pipe, steel pipe, other include carbon thin wall steel tube, alloy thin wall steel pipes. Generally greater than 32 mm hot rolled seamless steel tube diameter, wall thickness 2.5 75 mm, to 6 mm cold rolled seamless steel tube diameter, wall thickness to 0.25 mm, to 5 mm thin wall pipe diameter, wall thickness less than 0.25 mm, cold than hot rolled high dimensional accuracy.

Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150
Product Name 
 black painted welded square and rectangular steel tube pipe
Standard
 Q195 / Q235 / Q345 (A/B/C/D) ST37 / ST52 / ST37-2
 S185/S235JR/S235JO/E295/S355JRH
 ASTM A106A / ASTM A106C
 API 5L, API 5CT, API N80, API P110
Material
a36 15CrMo 20# a106 a53 gr.b St37.0 St44.0 St55 St52.0 Ck45 S355 Q345A
Size
15*20mm - 300*200mm (other sizes sall be customized)
Surface
1.Black painted 
2.oil anti-rust 
3.Galvanized 
4.FBE;3PE,PE 
5.or as customer request
Technology
1.Electronic Resistance Welded (ERW ) 
2. Electronic Fusion Welded (EFW)
3. Double Submerged Arc Welded (DSAW)
Pipe ends
 plian,beveled
Application
For manufacture of pipelines, vessels, equipment, pipe fitting and steel structure.
Package
Standard export sea-worthy packing or customized.
Delivery Time
5-10 days if goods in stock,10-15 days if goods not in stock.
Trade terms
FOB, CFR, CIF, EXW, etc.
Payment 
T/T L/C Western union etc
Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150Square Tube 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150

About the Supplier

This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASR253077". Items marked "verified" are certified.

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Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.
Zhejiang Zhong Ding Iron and Steel Co., Ltd.

About Our Factory & Business Background

verified Business Type
Trading Company
Address
Baolong Commercial Plaza, Zhonghe Street, Yinzhou District, Ningbo, Zhejiang, China
verified Number of Employees
14
verified Registered Capital
16,880,000 RMB
verified Terms of Payment
LC, T/T, D/P, PayPal, Western Union, Small-amount payment
verified International Commercial Terms(Incoterms)
FOB, EXW
verified Average Lead Time
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays
verified Nearest Port
Ningbo Port
verified Minimum Order Quantity
1 Ton
verified Supply Chain Partners
47

Our Production Capability & Technical Expertise

verified Main Products
Seamless Steel Pipe,  Welded Steel Pipe,  Carbon steel sheet, Carbon Steel Coil, Decking sheet, Steel Beam, Steel round bar, Steel Square pipe, Steel Rail, Stainless steel pipe/Strips/Coil/Bar/Plate
verified Customization Options
Customization from Samples
verified R&D Engineers
1 people

Our Industry Experience & Global Business Record

verified Year of Establishment
2020-10-23
verified Export Year
4 Years
verified Main Markets
Southeast Asia/ Mideast
verified Repeat Buyers Choice
80%~100%
verified Number of Foreign Trading Staff
8
verified Overseas Agent/Branch
No
verified New Products Launched in Last year
Yes

Our Certifications, Standards & Industry Recognition

verified Cooperated with Fortune 500
No

FAQ

What is the minimum order quantity?
The minimum order quantity is 1 Ton.
What are the available surface treatments?
Options include black painted, oil anti-rust, galvanized, FBE, 3PE, PE, or as per customer request.
What is the delivery time?
Delivery takes 5-10 days if goods are in stock, and 10-15 days if not in stock.
Can the product be customized?
Yes, customization from samples is available, including sizes and surface treatments.
What payment methods are accepted?
We accept T/T, L/C, Western Union, PayPal, and small-amount payments.
What standards does the pipe meet?
The pipe meets standards such as AISI, JIS, ASTM, DIN, and GB, with certifications like ABS, RoHS, and UL.
What are the main applications for this steel tube?
It is used for manufacturing pipelines, vessels, equipment, pipe fittings, and steel structures.

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