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Product Details
Q345B seamless steel pipe is a type of carbon steel pipe that belongs to the Q345 series, which is widely used in various industries due to its excellent mechanical properties and corrosion resistance. Here's an overview:
Properties of Q345B Seamless Steel Pipe:
1. Material Grade: Q345B is a Chinese standard for low alloy high strength structural steel. The "B" at the end signifies its quality level.
2. Chemical Composition:
- Carbon (C): 0.17% - 0.24%
- Silicon (Si): ≤0.55%
- Manganese (Mn): 0.70% - 1.40%
- Phosphorus (P): ≤0.045%
- Sulfur (S): ≤0.045%
- Other elements like Ni, Cr, Mo may be present in small quantities depending on the specific alloy composition.
3. Mechanical Properties:
- Yield Strength: ≥345 MPa
- Tensile Strength: ≤510 MPa
- Elongation: ≥21%
Applications:
- Construction: Used in building structures, bridges, and other civil engineering projects.
- Petroleum Industry: For oil and gas pipelines, drilling equipment, and well components.
- Power Industry: In power plants for steam pipes, boiler parts, and other high-pressure systems.
- Automotive Industry: Components requiring high strength and durability.
- General Manufacturing: In various machinery and equipment where strength and stability are critical.
Advantages:
- High Strength: Q345B steel has a higher yield strength compared to ordinary carbon steel, making it suitable for applications requiring high loads.
- Good Weldability: It can be easily welded using common welding processes, enhancing its versatility in manufacturing.
- Corrosion Resistance: Due to its alloy composition, it offers better resistance to corrosion compared to plain carbon steel, extending the service life of pipes in harsh environments.
Manufacturing Process:
Seamless steel pipes are made through a process that involves heating a solid steel billet to a high temperature, then drawing it through a die to form a hollow cylinder without any internal seams. This process ensures uniform wall thickness and superior integrity compared to welded pipes.
Quality Control:
Ensuring the quality of Q345B seamless steel pipes involves rigorous testing throughout the manufacturing process, including chemical analysis, mechanical property tests, and non-destructive testing to meet the stringent standards required for their intended applications.
If you need further information or assistance regarding Q345B seamless steel pipes or any other products, feel free to ask!
|
Item |
value |
|
Place of Origin |
China |
|
Application |
Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe, Other |
|
Alloy Or Not |
Non-Alloy |
|
Section Shape |
Round |
|
Outer Diameter |
60.3mm - 711mm |
|
Special Pipe |
API Pipe, EMT Pipe, Thick Wall Pipe |
|
Thickness |
4-65mm |
|
Standard |
GB |
|
Certificate |
API, ce, BIS, JIS, GS, ISO9001 |
|
Grade |
Carbon steel |
|
Surface Treatment |
Hot Rolled |
|
Tolerance |
±1% |
|
Processing Service |
Welding, Punching, Cutting, Bending, Decoiling |
|
Oiled or Non-oiled |
Non-oiled |
|
Delivery Time |
22-30 days |
|
Secondary Or Not |
Non-secondary |
|
Surface Treatment |
Black Paint, 3PP, 3PE,Epoxy Coating,etc |
|
Length Range |
3-12m or to order |
|
Payment term |
30% TT advance |
|
Hydrostatic Test |
To order |
|
End Type |
Plain End or Bevel End |
|
Third Party Inspection |
Available (Like SGS, BV,etc) |
FAQ
1.Who are we?
Our company is located in Liaocheng, Shandong Province, China, is the largest steel distribution center in northern China, adjacent to Qingdao Port, surrounded by Shougang, Angang, Jinan Iron and Steel, Wuyang and many other steel mills, with unique production, transportation and sales conditions.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Carbon steel seamless pipe,galvanized steel pipe,precision seamless pipe,oil and gas pipeline;wear resistant steel plate,galvanized steel plate,low carbon alloy plate ,tinplate and so on.
4. Why should you buy from us not from other suppliers?
Our team has more than 20 years experience of hardware parts manufacturing and designing, good knowledge and resource of supply chain management, support customers with high quality products, best solutions and efficient communications.
5. What services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,Express Delivery；
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,Credit Card;
Language Spoken:English,Chinese
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Main Product:
seamless carbon steel pipe ,
carbon steel plate,
carbon steel boiler tube,
API5L Pipeline,
hot rolled seamless steel pipe,
alloy pipes
