High Quality Hollow Section-Rectangle Tubes
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 5 m.t. m.t.
- Supply Capability:
- Based On Order m.t./month
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High Quality Hollow Section-Square Tubes
Usage/Applications Of High Quality Hollow Section-Square Tubes:
It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.
Standard Of High Quality Hollow Section-Square Tubes：
ASTM A500, GB6728
Steel Grade Of High Quality Hollow Section-Square Tubes:
ASTM A500: A, B, C
GB6728：Q195，Q215，Q235，Q345
Size of High Quality High Quality Hollow Section-Square Tubes:
*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 Of High Quality Hollow Section-Square Tubes (%)
|
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 |
0.2 |
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 Of High Quality Hollow Section-Square Tubes
|
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 |
GB6728：
|
Steel Grade |
CHEMICAL COMPOSITION |
MECHANICAL PROPERTIES | ||||||
|
|
C (%) |
Si (%) |
Mn (%) |
P(%) Max |
S (%) Max |
YS(Mpa) Min |
TS(Mpa) Min |
El (%) Min |
|
Q195 |
0.06-0.012 |
0.3 |
0.25-0.5 |
0.45 |
0.5 |
195 |
315 |
22 |
|
Q215 |
0.09-0.15 |
0.3 |
0.25-0.55 |
0.45 |
0.5 |
215 |
335 |
22 |
|
Q235 |
0.12-0.22 |
0.3 |
0.3-0.7 |
0.45 |
0.45 |
235 |
375 |
20 |
|
Q345 |
0.20 |
0.55 |
1.0-1.6 |
0.45 |
0.45 |
345 |
510 |
21 |
Packaging & Delivery Of H High Quality Hollow Section-Square Tubes:
Packed in bundles, each bundle with 6-8 steel stripes and 2 nylon strips Or one by one Or Nested into Containers
- Q: Can steel pipes be threaded?
- Yes, steel pipes can be threaded. Threading is a common process used to create screw-like ridges on the ends of the steel pipes, allowing them to be easily connected to fittings or other pipes.
- Q: How are steel pipes used in tunnel construction?
- Steel pipes are commonly used in tunnel construction for various purposes. They are used to provide structural support by acting as reinforcements or casings for the tunnel walls. Steel pipes also serve as conduits for utilities such as water, gas, and electricity within the tunnel. Additionally, they can be used for ventilation and drainage systems, ensuring a safe and functional environment inside the tunnel. Overall, steel pipes play a crucial role in the construction and functionality of tunnels.
- Q: How long do steel pipes typically last?
- Steel pipes typically last for several decades, with an average lifespan ranging from 50 to 100 years depending on various factors such as usage, maintenance, and environmental conditions.
- Q: Can steel pipes be used for underground transportation tunnels?
- Yes, steel pipes can be used for underground transportation tunnels. Steel pipes are commonly used in the construction of underground tunnels for various purposes such as transporting water, gas, and sewage. They are known for their durability, strength, and resistance to corrosion, making them suitable for underground applications. Steel pipes can withstand the weight and pressure exerted by the surrounding soil and can be reinforced to ensure stability. Additionally, steel pipes can be manufactured in various sizes and lengths, allowing for flexibility in tunnel design. However, it is essential to consider factors such as soil conditions, load-bearing capacity, and potential environmental impacts when deciding to use steel pipes for underground transportation tunnels.
- Q: Can steel pipes be used for irrigation pivot systems?
- Yes, steel pipes can be used for irrigation pivot systems. Steel pipes are often used in irrigation systems due to their strength, durability, and resistance to corrosion. They can withstand the pressure and stress of the water flow in pivot systems and are less prone to leaks or cracks compared to other materials. Additionally, steel pipes can be easily welded or threaded together, making them a convenient choice for irrigation systems that require a variety of lengths and configurations. However, it is important to consider the specific requirements of the irrigation pivot system and consult with professionals to ensure that the chosen steel pipes are suitable for the specific application.
- Q: What is the difference between steel pipes and aluminum pipes?
- The main difference between steel pipes and aluminum pipes lies in their material composition. Steel pipes are made of an alloy primarily composed of iron and carbon, making them strong, durable, and resistant to corrosion. On the other hand, aluminum pipes are made of aluminum, which is a lightweight metal known for its excellent corrosion resistance and high thermal conductivity. Aluminum pipes are typically used in applications that require lightweight materials or where corrosion resistance is crucial, while steel pipes are commonly used in heavy-duty applications that require strength and durability.
- Q: Can steel pipes be used for geothermal systems?
- Yes, steel pipes can be used for geothermal systems. Steel pipes are commonly used in geothermal systems due to their durability, high strength, and resistance to corrosion. They can effectively handle the high temperatures and pressures associated with geothermal operations, making them a reliable choice for transporting geothermal fluids. Additionally, steel pipes are readily available and cost-effective, making them a practical option for geothermal system installations.
- Q: How are steel pipes manufactured?
- Steel pipes are typically manufactured through a process called seamless or welded pipe manufacturing. In the seamless process, a solid steel billet is heated and pierced to create a hollow tube, which is then stretched and rolled to the desired size and shape. In the welded process, steel sheets are formed into a pipe shape and welded along the seam. These pipes are then further processed and finished before use in various industries.
- Q: Can steel pipes be used for LNG terminals?
- Yes, steel pipes can be used for LNG terminals. Steel pipes are commonly used in the construction of infrastructure for LNG terminals due to their strength, durability, and resistance to extreme temperatures. They can effectively handle the high-pressure requirements and the cryogenic temperatures involved in the storage and transportation of liquefied natural gas.
- Q: What is the role of steel pipes in the construction of bridges?
- Steel pipes play a vital role in the construction of bridges as they are used for various purposes such as providing structural support, carrying water or gas, and facilitating the transportation of electrical and communication cables. Their strength, durability, and ability to withstand heavy loads make them an essential component in bridge construction, ensuring the stability and longevity of the structure.
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 |
Send your message to us
High Quality Hollow Section-Rectangle Tubes
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 5 m.t. m.t.
- Supply Capability:
- Based On Order m.t./month
OKorder Service Pledge
OKorder Financial Service
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