• Hollow Section Steel Tubes(Hot Rolled/Cold Rolled) System 1
  • Hollow Section Steel Tubes(Hot Rolled/Cold Rolled) System 2
  • Hollow Section Steel Tubes(Hot Rolled/Cold Rolled) System 3
Hollow Section Steel Tubes(Hot Rolled/Cold Rolled)

Hollow Section Steel Tubes(Hot Rolled/Cold Rolled)

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Loading Port:
China Main 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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Hollow Section Steel TubesHot Rolled/Cold Rolled

Application of Hollow Section Steel TubesHot Rolled/Cold Rolled

It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.

ASTM A500, GB6728

Steel grade of Hollow Section Steel TubesHot Rolled/Cold Rolled

ASTM A500: A, B, C

GB6728Q195Q215Q235Q345

Size of Hollow Section Steel TubesHot Rolled/Cold Rolled

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

Sizee(mm)

Thickness(mm)

20×10

0.6-1.0

25×12

0.6-1.0

38×19

0.6-1.5

50×25

0.6-1.5

50×30

1.6-3.0

60×40

1.5-3.5

75×50

1.5-4.0

80×40

1.5-4.0

100×50

2.0-6.0

100×60

2.0-6.0

100×75

2.0-6.0

120×60

3.0-6.0

120×80

3.0-6.0

125×50

3.0-6.0

125×75

3.0-6.0

150×50

3.0-6.0

150×75

3.0-6.0

150×100

4.0-12

160×80

4.0-6.0

175×100

4.0-12

200×100

4.0-12

200×150

4.0-12

250×150

5.0-12

300×200

5.0-12

400×200

5.0-12

Chemical Composition(%)

Chemical Requirement

 

Composition %

Grade A

Grade B

Heat

Product

Heat

Product

Element

analysis

analysis

analysis

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

Mechanical Properties

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

Hollow Section Steel Tubes(Hot Rolled/Cold Rolled)

Hollow Section Steel Tubes(Hot Rolled/Cold Rolled)

 

 

 

 

 

Q: What type of steel pipe dance is used in general?
According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters.
Q: How are steel pipes protected against lightning strikes?
Steel pipes are typically protected against lightning strikes through the use of lightning rods and grounding systems. These measures help to divert the electrical energy from a lightning strike away from the steel pipes, preventing damage or potential accidents.
Q: What is the difference between hot-rolled and cold-rolled steel pipes?
Hot-rolled steel pipes are manufactured by heating the steel billets or coils to a high temperature, which allows for easier shaping and forming. The hot-rolled process also results in a rougher surface finish and larger tolerances. In contrast, cold-rolled steel pipes are made by rolling the steel at a lower temperature, resulting in a smoother surface finish, tighter tolerances, and improved strength and durability.
Q: How do steel pipes perform in extreme weather conditions?
Steel pipes generally perform well in extreme weather conditions. They have high strength and durability, making them resistant to harsh weather elements such as extreme temperatures, heavy rainfall, and strong winds. The material's resistance to corrosion and rust also ensures that the pipes can withstand long-term exposure to moisture and other environmental factors. However, it is important to note that proper maintenance and protective coatings can further enhance their performance and lifespan in extreme weather conditions.
Q: Are steel pipes suitable for HVAC systems?
Yes, steel pipes are suitable for HVAC systems. They are commonly used in HVAC installations due to their durability, strength, and resistance to high temperatures and pressures. Steel pipes also provide excellent corrosion resistance, making them ideal for long-term use in heating, ventilation, and air conditioning systems.
Q: How are steel pipes used in the pharmaceutical industry?
Steel pipes are commonly used in the pharmaceutical industry for various purposes such as transporting fluids, gases, and chemicals, as well as providing structural support for equipment and machinery. They are utilized in pharmaceutical manufacturing processes, including the transfer of raw materials, disinfection, and sterilization procedures, and the distribution of pharmaceutical products. Steel pipes ensure the safe and hygienic transfer of substances, maintaining the integrity and quality of pharmaceutical products throughout the production and distribution chain.
Q: How are steel pipes used in high-rise buildings?
Steel pipes are used in high-rise buildings for various purposes, including structural support, plumbing, and HVAC systems. They provide the necessary strength and durability to withstand the weight and forces exerted on tall buildings, while also facilitating the efficient distribution of water, gas, and air throughout the entire structure.
Q: What are the different sizes available for steel pipes?
Steel pipes are available in a wide range of sizes, including standard sizes such as ½ inch, 1 inch, 2 inches, and up to larger sizes like 24 inches and beyond. The specific sizes available depend on the manufacturer and the intended application of the steel pipes.
Q: What is the cost of steel pipes?
The cost of steel pipes can vary depending on various factors such as size, grade, quantity, and current market conditions. It is best to contact a supplier or check with local suppliers to get an accurate and up-to-date price quote.
Q: What does "buried steel pipe" 6*2SC100 mean?
The embedded steel pipe 6*2SC100 refers to a welded steel pipe with 2 pipe thicknesses of 6mm and a diameter of 100mm. SC pipe means welded steel pipe. Embedment means pre installation (burial).
We mainly produces Square and Rectangular Tubes which using the cold rolling technology and other types of tube including Round Steel Pipes, Welded Steel Pipes, Seamless Steel Pipes, Long Products, Flat Steel Products and so on. Our productivity achieves 500, 000 tons each year. Our company is stronger in financial capital and enough power of technical support. The steel tubes made by the company are strictly according to ISO9001:2000 standard quality management system to ensure the high quality of the products.

1. Manufacturer Overview

Location Tianjin,China
Year Established 2000
Annual Output Value Above Thirty Million RMB
Main Markets China; Europe
Company Certifications ISO9001:2000

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a) Trade Capacity
Nearest Port Tianjin;Qingdao
Export Percentage 41% - 50%
No.of Employees in Trade Department
Language Spoken: English;Chinese
b) Factory Information
Factory Size: 53000square meter
No. of Production Lines
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range Low Average

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