Hollow Section Steel Tubes(Hot Rolled/Cold Rolled)
- 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: 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).
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 |
Send your message to us
Hollow Section Steel Tubes(Hot Rolled/Cold Rolled)
- 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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