Hollow Section Steel Tubes（Hot Rolled/Cold Rolled）
- Ref Price:
-
- 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 Tubes（Hot Rolled/Cold Rolled）
Application of Hollow Section Steel Tubes（Hot 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 Tubes（Hot Rolled/Cold Rolled）
ASTM A500: A, B, C
GB6728：Q195，Q215，Q235，Q345
Size of Hollow Section Steel Tubes（Hot 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 |
- Q:Are steel pipes suitable for underground compressed air systems?
- Yes, steel pipes are generally suitable for underground compressed air systems. Steel pipes have several advantages that make them a popular choice for such applications. Firstly, steel pipes are known for their high strength and durability, which allows them to withstand the pressure and stress associated with compressed air systems. They can handle high operating pressures without any significant risk of bursting or leaking. Secondly, steel pipes have excellent resistance to corrosion and can withstand exposure to moisture, soil, and other underground elements. This makes them a reliable choice for underground installations, where pipes may be exposed to moisture and other potentially corrosive substances. Furthermore, steel pipes are relatively easy to install and maintain. They can be welded or threaded together, ensuring a secure and leak-free connection. Additionally, steel pipes can be easily inspected and repaired if necessary, allowing for cost-effective maintenance and repairs. However, it is important to note that the suitability of steel pipes for underground compressed air systems may also depend on other factors such as the specific requirements and conditions of the system. It is advisable to consult with a professional engineer or a qualified expert to ensure that steel pipes are the most appropriate choice for a specific application.
- Q:Where is a steel pipe casing usually used?
- A straight tube of carbon steel sheathed on pipes and tubes and threading tubes to protect the joints from damage by electric welding. The purpose is to protect the wires and cables.
- Q:What's the gate number of the precision steel pipe?
- Precision steel pipe refers to the high precision steel pipe, the wall thickness and internal and external diameter can be controlled within 10 wire tolerance range
- Q:What is the outer diameter and wall thickness of the welded steel pipe of national standard DN250?
- DN250 is the nominal diameter, the outer diameter of the steel pipe is 273mm, the thickness is above 6.5mm.
- Q:How do steel pipes perform in seismic zones?
- Steel pipes perform well in seismic zones due to their high strength and ductility. They have the ability to absorb and distribute seismic energy, which helps in reducing the impact of earthquakes. Additionally, steel pipes are resistant to damage and deformation during seismic events, making them a reliable choice for infrastructure in earthquake-prone areas.
- Q:How do steel pipes perform in high-temperature environments?
- Steel pipes perform well in high-temperature environments due to their inherent strength and heat resistance. They can withstand extreme temperatures without losing their structural integrity or deforming, making them suitable for various industrial applications such as steam pipelines, power plants, and refineries. The high melting point of steel allows it to maintain its mechanical properties even at elevated temperatures, ensuring reliable and efficient operation in high-temperature environments.
- Q:Can steel pipes be used for oil and gas pipelines?
- Yes, steel pipes are commonly used for oil and gas pipelines due to their high strength, durability, and resistance to corrosion.
- Q:What are the different types of supports used for steel pipes?
- The different types of supports used for steel pipes include pipe hangers, clamps, brackets, and anchors. Pipe hangers are used to suspend the pipe from a structure, while clamps provide support and prevent movement. Brackets are used to secure the pipe to a wall or other surface, and anchors are used to prevent the pipe from shifting or moving. These supports help to ensure the stability and proper installation of steel pipes.
- Q:Can steel pipes be used for solar energy systems?
- Yes, steel pipes can be used for solar energy systems. Steel pipes are commonly used for the construction of solar panel mounting structures and the transportation of heated fluids in solar thermal systems. They offer strength, durability, and resistance to high temperatures, making them suitable for various components of solar energy systems.
- Q:What is the difference between steel pipes and cast iron pipes?
- The main difference between steel pipes and cast iron pipes lies in their composition and properties. Steel pipes are made from an alloy of iron and carbon, which gives them high strength and durability. They are also resistant to corrosion and can withstand high pressure and temperature conditions. On the other hand, cast iron pipes are made from molten iron, which provides them with excellent soundproofing capabilities and resistance to fire. However, cast iron pipes are more prone to corrosion and can be brittle, making them less suitable for high-pressure applications.
1. Manufacturer Overview |
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|---|---|
| Location | Tianjin,China |
| Year Established | 2000 |
| Annual Output Value | Above Thirty Million RMB |
| Main Markets | China; Europe |
| Company Certifications | ISO9001:2000 |
2. Manufacturer Certificates |
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|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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|---|---|
| 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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Hollow Section Steel Tubes（Hot Rolled/Cold Rolled）
- Ref Price:
-
- 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
OKorder Service Pledge
OKorder Financial Service
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