• Welded Black Carbon Square Tubes Pre-galvanized/ Galvanized ASTM A500 10*10-400*400 Structure Pipe System 1
  • Welded Black Carbon Square Tubes Pre-galvanized/ Galvanized ASTM A500 10*10-400*400 Structure Pipe System 2
  • Welded Black Carbon Square Tubes Pre-galvanized/ Galvanized ASTM A500 10*10-400*400 Structure Pipe System 3
Welded Black Carbon Square Tubes Pre-galvanized/ Galvanized ASTM A500 10*10-400*400 Structure Pipe

Welded Black Carbon Square Tubes Pre-galvanized/ Galvanized ASTM A500 10*10-400*400 Structure Pipe

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Loading Port:
Tianjin Port
Payment Terms:
TT or L/C
Min Order Qty:
50MT m.t.
Supply Capability:
based on order m.t./month

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1. Specification of Hollow Section-Square Tubes

1) Application: Widely used in building, machine, chemical equipment, automobile industrial, container, and also applied to agriculture and mine machine.

2)Standard:ASTM A500, GB6728

3)Steel grade: ASTM A500: A, B, C; GB6728:Q195,Q215,Q235,Q345

4)Delivery Time: 7-20 Days after receving prepayment or L/C

2. Size of Hollow Section-Square Tubes

SIZE(mm)

THICKNESS(mm)

10×10

0.6-1.0

12×12

0.6-1.0

16×16

0.6-1.2

19×19

0.6-1.5

20×20

1.6-1.5

25×25

1.0-2.75

30×30

1.0-2.75

32×32

1.0-3.0

38×38

1.0-3.0

40×40

1.0-3.5

50×50

1.0-5.0

60×60

1.0-6.0

63.5×63.5

1.0-6.0

70×70

1.5-6.0

75×75

1.5-6.0

80×80

2.0-6.0

90×90

2.0-6.0

100×100

2.3-6.0

120×120

4.0-6.0

125×125

4.0-6.0

150×150

4.0-8.0

200×200

6.0-12

250×250

6.0-12

300×300

6.0-12

400×400

6.0-12

*Remark: Besides below sizes, we also can arrange production based on requirement of customer's requirement

3. Packing&Delivery

Packing Details: Big OD: in bulk; Small OD: packed by steel pipe;Plastic bags 4 or According to customer's requirement

Delivery Time: 20-30 days upon receving prepayment or L/C

4. Data Sheet

ASTM A 500

Chemical Requirement

Composition %

Grade A

Grade B

Element

Heat analysis

Product analysis

Heat analysis

Product analysis

Carbon max

0.26

0.3

0.22

0.26

Manganese max

1.4

1.45

Phosphorus, max

0.035

0.045

0.03

0.04

Sulfur max

0.035

0.045

0.02

0.03

Copper, when copper steel is specified, min

0.20

0.18

0.2

0.18

Where an ellipsis (...)appears in this table, there is no requirement

 For each reduction of 0.01 percentage point below the specified maximum for carton, and increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50% by heat analysis and 1.6% by product analysis

 

  Tensile Requirement

 

Grade A

Grade B

Tensile strength, min, psi (Mpa)

48000 (400)

70000 (483)

Yield strength, min, psi (Mpa)

36000 (250)

50000 (345)

Elongation in 2 in. (50.8mm), min, %

23

23

5. Products Showroom

 square tube carbon ASTM A500 horrow section
Q: Can steel pipes be used for marine applications?
Yes, steel pipes can be used for marine applications.
Q: Are steel pipes suitable for use in coastal areas?
Yes, steel pipes are suitable for use in coastal areas. Steel is highly resistant to corrosion and can withstand the harsh environmental conditions typically found in coastal regions, such as saltwater spray and high humidity. Additionally, steel pipes offer excellent structural strength, making them well-suited for various applications including marine construction, offshore oil and gas platforms, and coastal infrastructure projects.
Q: How are steel pipes used in the pulp and paper industry?
Steel pipes are commonly used in the pulp and paper industry for various applications such as transporting water, steam, chemicals, and other fluids throughout the production process. They are used in the construction of pipelines, conveying raw materials, and transferring finished products. Steel pipes provide durability, reliability, and resistance to corrosion, making them suitable for handling the harsh conditions and corrosive substances found in the industry.
Q: How are steel pipes used in plumbing?
Steel pipes are commonly used in plumbing for various applications such as water supply and drainage systems. They provide durability, strength, and resistance to corrosion, making them suitable for both residential and industrial plumbing. Steel pipes can be used for transporting water, gases, and other fluids, and are often connected with fittings and valves to create a reliable and efficient plumbing system.
Q: How are steel pipes used in the construction of irrigation systems?
Steel pipes are commonly used in the construction of irrigation systems due to their strength and durability. These pipes are used to transport water from a water source, such as a well or reservoir, to the desired areas for irrigation. They are often used in underground or above-ground applications, providing a reliable and efficient means of delivering water to crops or plants. Steel pipes are resistant to corrosion and can withstand high pressure, making them ideal for irrigation systems that require long-term functionality.
Q: How do you protect steel pipes from fire?
To protect steel pipes from fire, there are several measures that can be taken. One commonly used method is to apply fire-resistant coatings or paints to the surface of the pipes. These coatings or paints are designed to withstand high temperatures and provide a barrier that prevents the heat from reaching the steel. Another effective way to protect steel pipes from fire is to wrap them with fire-resistant insulation materials. These materials act as a buffer, reducing the heat transfer and slowing down the spread of fire. Insulation materials such as mineral wool or ceramic fiber blankets are commonly used for this purpose. In addition, it is important to ensure that the steel pipes are properly installed and supported. This includes maintaining proper clearance from other flammable materials and avoiding overcrowding or obstructions that could impede the flow of air around the pipes. Adequate spacing between pipes is also crucial to prevent the transfer of heat from one pipe to another. Furthermore, it is recommended to incorporate firestop systems when steel pipes pass through fire-rated walls or floors. Firestop systems consist of fire-resistant materials and seals that prevent the spread of fire and smoke through openings or penetrations in fire-rated barriers. Regular maintenance and inspections are essential to ensure the ongoing effectiveness of the fire protection measures. Any damage or deterioration of the coatings, insulation, or firestop systems should be promptly repaired or replaced to maintain the fire resistance of the steel pipes. Overall, a combination of fire-resistant coatings, insulation, proper installation, and maintenance practices are crucial in protecting steel pipes from fire hazards. These measures help to minimize the risk of fire-related damage and ensure the safety of both the pipes and the surrounding environment.
Q: What are the advantages of using steel pipes in the manufacturing industry?
There are several advantages of using steel pipes in the manufacturing industry. Firstly, steel pipes are known for their high strength and durability, making them ideal for carrying heavy loads and withstanding harsh conditions. Secondly, steel pipes have excellent resistance to corrosion, reducing the risk of leaks and ensuring a longer lifespan. Additionally, steel pipes offer a wide range of sizes and shapes, allowing for flexibility in design and easy customization. Furthermore, steel pipes are cost-effective compared to other materials, as they require minimal maintenance and have a low risk of failure. Lastly, steel pipes are environmentally friendly, as they are fully recyclable and contribute to reducing carbon emissions during manufacturing. Overall, the advantages of using steel pipes in the manufacturing industry make them a reliable and efficient choice for various applications.
Q: How are steel pipes used in the manufacturing of machinery?
Steel pipes are used in the manufacturing of machinery primarily for conveying fluid or gas, providing structural support, and acting as a conduit for electrical wiring. They are commonly used as the framework for various machine components, such as conveyor systems, hydraulic equipment, and pneumatic systems. Steel pipes offer durability, strength, and versatility, making them an essential material in machinery manufacturing.
Q: What are the different methods of heat treatment for steel pipes?
Some of the different methods of heat treatment for steel pipes include annealing, quenching, tempering, normalizing, and stress relieving.
Q: How are steel pipes used in the transportation of liquids and gases?
Steel pipes are used in the transportation of liquids and gases due to their durability, strength, and resistance to corrosion. They are commonly used in industries such as oil and gas, water supply, and chemical processing. Steel pipes ensure the safe and efficient movement of fluids over long distances, as they can withstand high pressure and extreme temperatures. Additionally, their seamless construction minimizes the risk of leaks, making them essential for transporting various liquids and gases.
The company has successively passed ISO9000 quality system, the American Petroleum Institute API, and also earned the environment healthy license, national special equipment manufacturing license.

1. Manufacturer Overview

Location Hebei, China
Year Established 1988
Annual Output Value Above One Hundred Million RMB
Main Markets Main land; Southeast Asia; Middle East; Africa
Company Certifications ISO 9002:2010;API 5L

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a) Trade Capacity
Nearest Port Tianjin
Export Percentage 30%-50%
No.of Employees in Trade Department 201-500 People
Language Spoken: English; Chinese
b) Factory Information
Factory Size: 50,000 square meters
No. of Production Lines Above 15
Contract Manufacturing Meicai Metal Trading Co.Ltd
Product Price Range Average

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