YB/T 4202 Bright Large Diameter Thin Wall Straight Seam Welded Steel Pipes For Scaffolding
YB/T 4202 Welded Steel Pipes: Bright Large Diameter Thin Wall Straight Seam Welded Pipe For Scaffolding
Material and Specification
The YB/T 4202 standard governs the production of welded steel pipes, specifically designed for scaffolding applications. This standard ensures the consistent production of quality pipes suitable for use in construction scaffolding.
The pipes manufactured according to YB/T 4202 are characterized by their bright surface, large diameter, and thin wall construction. Moreover, they feature a straight seam welded design, ensuring structural integrity and durability. These pipes are widely utilized in various scaffolding applications, providing the necessary support and stability required for construction projects.
Key Features
The key features of YB/T 4202 Welded Steel Pipes include:
- Bright surface: The pipes have a smooth and shiny surface, ensuring enhanced aesthetic appeal.
- Large diameter: These pipes are available in various diameters, catering to different scaffolding needs.
- Thin wall: The pipes are designed with a thin wall construction, reducing both weight and material usage.
- Straight seam welded: They are manufactured using a straight seam welding technique, ensuring strong and reliable connections.
- Scaffolding suitability: YB/T 4202 pipes are specifically designed for scaffolding applications, providing necessary support and stability to construction projects.
Chemical Composition
| Steel Grade | C% | Si% | Mn% | P% | S% |
|---|---|---|---|---|---|
| Grade 245R | 0.20-0.25 | 0.17-0.37 | 0.40-0.80 | ≤0.040 | ≤0.040 |
| Grade 295R | 0.25-0.30 | 0.17-0.37 | 0.50-0.90 | ≤0.040 | ≤0.040 |
| Grade 345R | 0.30-0.35 | 0.17-0.37 | 1.00-1.50 | ≤0.040 | ≤0.040 |
Mechanical Properties
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation % |
|---|---|---|---|
| Grade 245R | ≥245 | 400-540 | ≥22 |
| Grade 295R | ≥295 | 440-570 | ≥20 |
| Grade 345R | ≥345 | 490-630 | ≥18 |
Steel Grade and Application
YB/T 4202 Welded Steel Pipes are available in different steel grades, each with varying mechanical properties to meet specific requirements. The commonly used steel grades include 245R, 295R, and 345R.
These pipes find extensive application in the construction industry, specifically for scaffolding purposes. They provide the necessary structural support and stability during construction, ensuring the ety of workers and the success of the project.
Possible Alternative Grades
While YB/T 4202 specifies certain steel grades for the welded steel pipes, there may be alternative grades available that suit specific project requirements. These alternative grades should fulfill the necessary mechanical and chemical properties along with the application criteria.


Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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