BS 1387 ERW Welded Steel Pipe for Low-Pressure & Structural Use
BS 1387 ERW Welded Steel Pipe for Low-Pressure & Structural Use
BS 1387
FOB, CIF
10tons
2000tons
Tianjin, China
30Day
BS 1387 pipe is produced following the BS 1387 standard, offering high-quality performance for a variety of applications. Manufactured with precise ERW welding, these pipes maintain uniform wall thickness and smooth weld seams.
Quantity
What is BS 1387 Standard
BS 1387 is a British standard specifying mild steel tubes for low-pressure services and structural applications. Pipes manufactured according to the BS 1387 standard are widely recognized for their stable performance, excellent weldability, and reliable quality.
Key characteristics of BS 1387 include:
- Mild carbon steel material, equivalent to Q195, Q235, or Q345
- Manufactured using ERW technology
- Consistent dimensional tolerances
- Suitable for threading, welding, and fabrication
Understanding the BS 1387 standard helps ensure that the right type of pipe is selected for specific projects, guaranteeing safety and efficiency.
What is a BS 1387 ERW Steel Pipe
Our BS 1387 pipe is produced following the BS 1387 standard, offering high-quality performance for a variety of applications. Manufactured with precise ERW welding, these pipes maintain uniform wall thickness and smooth weld seams.
Available in both black steel and galvanized finishes, BS 1387 black steel pipe is versatile for structural, industrial, and low-pressure fluid conveying projects.
What are BS 1387 Light, Medium, and Heavy Pipes (Class L, M, H)
According to BS 1387, pipes are classified by wall thickness into:
- Light (L) – thin wall, lightweight, cost-effective
- Medium (M) – most commonly used, balanced strength and weight
- Heavy (H) – thick wall, high strength
In some markets, BS 1387 Medium pipes are referred to as “Class B”, while Light and Heavy types are less commonly labeled with market terms.
Choosing the right type ensures the pipe meets the strength, load, and cost requirements of your project.
| Light tubes | Medium tubes | Heavy tubes |
| Outside diameter: 1/2 inch to 4 inch | Outside diameter: 1/2 inch to 6 inch | Outside diameter: 1/2 inch to 6 inch |
| Thickness tolerance: -8% | Thickness tolerance: -10% | Thickness tolerance: -10% |
| Length tolerance: -/+20mm | Length tolerance: -/+20mm | Length tolerance: -/+20mm |
| Color marked:brown | Color marked:blue | Color marked:red |
What are the Applications of BS 1387 Pipes
BS 1387 ERW steel pipes are widely used in:
- Structural frameworks and construction projects
- Scaffolding systems
- Low-pressure water and gas pipelines
- General industrial piping and mechanical support
The versatility of BS 1387 black steel pipe makes it a reliable choice for both infrastructure and industrial applications worldwide.
BS 1387 Structure Pipe Factories – Tianjin Youfa Steel Pipe Group
As a leading BS 1387 structure pipe factories supplier, Tianjin Youfa Steel Pipe Group offers:
- Advanced ERW pipe production lines for consistent quality
- Strict quality control and inspection procedures
- Large-scale production and stable supply for bulk orders
- Compliance with international standards and certifications
We are committed to delivering high-quality BS 1387 pipe solutions for customers worldwide, ensuring reliability, timely delivery, and excellent service.
Why Choose Tianjin Youfa for BS 1387 Pipes
Choosing the best BS 1387 steel pipe means partnering with a manufacturer that combines experience, capacity, and reliability. Tianjin Youfa Steel Pipe Group stands out with its impressive production capabilities:
- 15 production bases strategically located for efficiency
- Over 300 advanced production lines for ERW and other steel pipes
- Annual production capacity of 20 million tons, ensuring timely delivery for large projects
- Strict quality control and full compliance with the BS 1387 standard and international certifications
With a full range of Light, Medium, and Heavy BS 1387 ERW steel pipes, flexible specifications, and professional service, Tianjin Youfa is your trusted partner for global projects.
FAQ About BS 1387 Pipes
Q1: What is a BS 1387 steel pipe?
A: A BS 1387 steel pipe is a mild carbon steel pipe manufactured according to the BS 1387 standard. It is widely used for low-pressure fluid conveying and structural applications, offering reliable quality and excellent weldability.
Q2: What are the types of BS 1387 pipes?
A: BS 1387 pipes are classified based on wall thickness into Light (L), Medium (M), and Heavy (H). In some markets, Medium pipes are referred to as “Class B”. Each type is suitable for different applications depending on strength, weight, and project requirements.
Q3: What are the common applications of BS 1387 ERW pipes?
A: BS 1387 ERW steel pipes are commonly used in:
- Structural frameworks and construction projects
- Scaffolding systems
- Low-pressure water and gas pipelines
- General industrial piping
Their versatility and durability make them ideal for both infrastructure and industrial applications.
Q4: What grades of steel are used in BS 1387 pipes?
A: BS 1387 pipes are made from mild carbon steel equivalent to Q195, Q235, or Q345 grades, depending on the required strength and wall thickness. They are manufactured using the ERW process to ensure consistent quality.
Q5: Why choose Tianjin Youfa for BS 1387 pipes?
A: Tianjin Youfa Steel Pipe Group is a leading BS 1387 black steel pipe factory with:
- 15 production bases and over 300 production lines
- Annual production capacity of 20 million tons
- Full compliance with BS 1387 standard and international certifications
- Flexible specifications and professional service
Choosing Youfa guarantees reliable supply, consistent quality, and global support for your projects
