Seamless steeI tubes for structures
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Standards：
GB，_r81 62 Chinese national standard
ASTM A53 Standard of American Society of Testing Materials
ASME SA53 Boiler and pressure vessel--c-Ojrde of ASME
Application：
Seamless steel tubes for manufacturing pipelines。vessels，equipment and mechanical structures
Models of major steeI tubes：
1 O，20，35、45，Q345，1 5CrMo，1 2Crl MoV,A53A，A53B，SA53A，SA53B, etc．
Diamensional tolerances:
Types of steel tubes | Outer diameter | Wall thickness | ||
Cold-rolled tubes | Tube sizes(mm) | Tolerances(mm) | Tube sizes (mm) | Tolerances(mm) |
＞30～50 | ±0.3 | ≤30 | ±10％ | |
＞50～219 | ±0.8％ | |||
Hot-rolled tubes | ＞219 | ±1.0％ | ＞20 | ±10％ |
Mechanical properties：
Standard codes | Models of steel tubes | Tensite strength（MPa） | Yield strength（MPa） | Elongation（％） |
GB/T8162 | 10 | ≥335 | ≥205 | ≥24 |
20 | ≥390 | ≥245 | ≥20 | |
35 | ≥510 | ≥305 | ≥17 | |
45 | ≥590 | ≥335 | ≥14 | |
Q345 | ≥490 | ≥325 | ≥21 | |
15CrMo | ≥440 | ≥295 | ≥22 | |
12Cr1MoV | ≥490 | ≥245 | ≥22 | |
ASTM A53 ASME SA53 | A | ≥330 | ≥205 | Check the table in ASTM A 53 |
B | ≥415 | ≥240 |
Chemical composition:
Standard codes | Models of steel tubes | Chemical compositions（％） | |||||||||
C | Si | Mn | P | S | Cu | Ni | Mo | Cr | V | ||
GB/T8162 | 10 | 0.07～0.14 | 0.17～0.37 | 0.35～0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.15 | / |
20 | 0.17～0.24 | 0.17～0.37 | 0.35～0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | / | |
35 | 0.32～0.40 | 0.17～0.37 | 0.50～0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | / | |
45 | 0.42～0.50 | 0.17～0.37 | 0.50～0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | / | |
Q345 | 0.12～0.20 | 0.20～0.55 | 1.20～1.60 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | / | |
15CrMo | 0.12～0.18 | 0.17～0.37 | 0.40～0.70 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | 0.40～0.55 | 0.80～1.10 | / | |
12Cr1MoV | 0.08～0.15 | 0.17～0.37 | 0.40～0.70 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | 0.25～0.35 | 0.90～1.20 | 0.15～0.30 | |
ASTMA53 ASMESA53 | A | ≤0.25 | / | ≤0.95 | ≤0.05 | ≤0.06 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 |
B | ≤0.30 | / | ≤1.20 | ≤0.05 | ≤0.06 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 | |
- Q: How are steel pipes used in the manufacturing of bicycles?
- Steel pipes are commonly used in the manufacturing of bicycles as they provide strength, durability, and rigidity to the frame structure. The pipes are typically used to construct the main frame, handlebars, seat post, and fork, ensuring a sturdy and reliable bicycle.
- Q: What is the pressure rating of steel pipes?
- The pressure rating of steel pipes can vary depending on factors such as the size, wall thickness, and specific grade of the steel used. However, steel pipes are commonly available in pressure ratings ranging from a few hundred PSI (pounds per square inch) to several thousand PSI, making them suitable for a wide range of applications.
- Q: How are steel pipes measured and labeled?
- Steel pipes are typically measured and labeled based on their outside diameter (OD) and wall thickness. The measurement is usually expressed in millimeters or inches. The label includes these dimensions, such as "2-inch OD, 1/8-inch wall thickness." Additionally, the length of the pipe may also be included in the labeling, ranging from standard lengths like 6 meters or 20 feet.
- Q: How are steel pipes used in the defense sector?
- Steel pipes are used in the defense sector for various purposes such as constructing military infrastructure, including bunkers, underground facilities, and missile silos. They are also utilized in the manufacturing of military vehicles, weapons systems, and equipment. Steel pipes provide strength, durability, and resistance to extreme conditions, making them ideal for applications in the defense sector.
- Q: What are the different end finishes for steel pipes?
- There are several different end finishes for steel pipes, depending on their intended use and the specific requirements of the application. Some of the most common end finishes for steel pipes include: 1. Plain End: This is the simplest and most common type of end finish, where the pipe is cut square at both ends without any additional treatment or threading. Plain end pipes are typically used for low-pressure applications or when the pipe will be connected using welding methods. 2. Beveled End: A beveled end finish involves cutting the pipe at an angle, usually 30 or 37.5 degrees, to facilitate easier welding and create a stronger joint. Beveled end pipes are commonly used for butt-welding applications, where two pipes are joined together by aligning the beveled ends and welding them. 3. Threaded End: In this end finish, the pipe is threaded at both ends to allow for easy connection with threaded fittings or couplings. Threaded end pipes are commonly used in plumbing and gas distribution systems, as well as for applications that require frequent disassembly and reassembly. 4. Coupled End: Coupled end finishes involve the installation of couplings or connectors at each end of the pipe. This allows for quick and easy connection of pipes without the need for additional threading or welding. Coupled end pipes are often used in oil and gas pipelines or in applications where rapid installation is required. 5. Grooved End: A grooved end finish involves cutting grooves into the pipe's ends and using mechanical couplings or fittings to join the pipes together. This type of end finish is commonly used in fire protection systems, as well as for large-diameter pipes that require quick and efficient assembly. 6. Flanged End: Flanged end finishes involve attaching flanges to the pipe ends, which can be bolted together to create a secure and leak-proof connection. Flanged end pipes are commonly used in applications that require easy disassembly and reassembly, such as in chemical plants or refineries. It is important to note that the choice of end finish for a steel pipe depends on factors such as the application, the required joint strength, the type of connection method, and the compatibility with other system components. Consulting with a professional or referring to industry standards is recommended to ensure the correct end finish is selected for a specific application.
- Q: Can steel pipes be insulated for thermal efficiency?
- Yes, steel pipes can be insulated for thermal efficiency. Insulating steel pipes helps to reduce heat loss or gain, ensuring better energy efficiency and cost savings. The insulation material, such as foam or mineral wool, is typically wrapped around the pipe to create a barrier that minimizes heat transfer.
- Q: Can steel pipes be used for conveying slurry?
- Yes, steel pipes can be used for conveying slurry. Steel pipes are widely used in various industries for transporting different types of fluids, including slurry. Slurry is a mixture of solid particles suspended in a liquid, and steel pipes are well-suited for handling such mixtures due to their strength, durability, and resistance to corrosion. Steel pipes are also known for their high-pressure and high-temperature capabilities, making them suitable for conveying slurry in demanding applications such as mining, dredging, and wastewater treatment. Additionally, steel pipes can be easily welded, allowing for the construction of long pipelines that can efficiently transport slurry over long distances. However, it is important to consider the specific characteristics of the slurry being conveyed, such as particle size, density, and abrasiveness, to ensure proper pipe selection and design for optimal performance and longevity.
- Q: How are steel pipes classified based on pressure ratings?
- Steel pipes are classified based on pressure ratings by assigning them different schedules, ranging from Schedule 10 to Schedule 160. Each schedule represents a different maximum pressure that the pipe can withstand, with higher schedules indicating higher pressure ratings.
- Q: How are steel pipes used in the electronics industry?
- Steel pipes are commonly used in the electronics industry for various purposes such as cable management, structural support, and heat dissipation. They are often used to protect and organize cables and wires, ensuring efficient and organized routing of electrical connections. Steel pipes also provide structural support for electronic equipment, serving as a framework for mounting components and ensuring stability. Additionally, steel pipes are used for heat dissipation, allowing for the efficient cooling of electronic devices, which is crucial for maintaining optimal performance and preventing overheating.
- Q: The plastic pipe and steel pipe difference
- The steel plastic pipe is a general term, which includes plastic pipe, plastic lined pipe. Plastic pipe external coating, zinc coated and so on in Shanghai, Fujian, Portland, professional in this area
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Seamless steeI tubes for structures
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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