Description
YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube
Material and Specification
The YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube is a type of welded tube that conforms to the YB/T 4674-2013 standard. It is made from various steel grades, including Q195, Q215, Q235, and Q275. The tube is manufactured using a welding process and is available in different shapes to suit various applications.
Key Features
The YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube offers several key features that make it suitable for a wide range of applications. These features include:
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Versatility: The tube is available in various shapes, allowing it to be used in different structural and mechanical applications.
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High Strength: The steel grades used in the tube provide excellent strength and durability, making it suitable for demanding applications.
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Welded Construction: The tube is manufactured using a welding process, ensuring a strong and reliable bond between the different sections.
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Dimensional Accuracy: The tube is produced with precise dimensions, ensuring compatibility and ease of installation.
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Cost-Effective: The YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube offers a cost-effective solution for various industrial and construction projects.
Chemical Composition
The chemical composition of the YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube is as follows:
| Steel Grade | Chemical Composition (%) |
|---|---|
| Q195 | C: ≤0.12, Mn: ≤0.50, Si: ≤0.30, S: ≤0.045, P: ≤0.045 |
| Q215 | C: ≤0.15, Mn: ≤0.55, Si: ≤0.30, S: ≤0.050, P: ≤0.045 |
| Q235 | C: ≤0.20, Mn: ≤0.55, Si: ≤0.30, S: ≤0.045, P: ≤0.045 |
| Q275 | C: ≤0.25, Mn: ≤0.60, Si: ≤0.30, S: ≤0.050, P: ≤0.045 |
Mechanical Properties
The mechanical properties of the YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube are as follows:
| Steel Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| Q195 | ≥315 | ≥195 | ≥33 |
| Q215 | ≥335 | ≥215 | ≥31 |
| Q235 | ≥375 | ≥235 | ≥26 |
| Q275 | ≥410 | ≥275 | ≥24 |
Steel Grade and Application
The YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube is available in different steel grades, each suitable for specific applications. Here are some common applications for each steel grade:
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Q195: This grade is commonly used for general structural purposes, such as in construction, machinery, and furniture manufacturing.
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Q215: Q215 is suitable for applications that require higher strength and toughness, such as in the manufacturing of agricultural equipment, vehicle components, and structural frameworks.
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Q235: Q235 is widely used in various industries, including construction, transportation, and machinery manufacturing. It is suitable for applications that require good weldability and moderate strength.
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Q275: Q275 is a high-strength steel grade suitable for heavy-duty applications, such as in the construction of bridges, cranes, and offshore structures.
Possible Alternative Grades
While the YB/T 4674 20 Q195 Q215 Q235 Q275 Shaped Tubing Welded Tube offers a wide range of steel grades, there are alternative grades available in the market that may suit specific requirements. Some possible alternative grades include:
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Q345: Q345 is a commonly used alternative grade that offers higher strength and better impact resistance compared to Q235. It is suitable for applications that require superior performance in demanding environments.
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Q420: Q420 is a high-strength structural steel grade that provides excellent weldability and formability. It is often used in heavy construction and machinery manufacturing.
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Q550: Q550 is a high-strength steel grade suitable for applications that require exceptional strength and durability. It is commonly used in the construction of large-scale infrastructure projects.
