Steel Pipe Size Catalogue SCH10 / SCH40 / SCH80 According to ASME B36.10 Standard

In industrial piping systems, selecting the correct steel pipe size and wall thickness is essential to ensure safety and performance.

The most widely used standards are SCH10, SCH40, and SCH80, defined under the ASME B36.10 standard.

1. What Does SCH Mean in Steel Pipes?

SCH (Schedule) refers to the wall thickness of steel pipes, not the outer diameter.

👉 Higher SCH means thicker pipe wall → higher pressure resistance.

2. Common SCH Types

🔹 SCH10

• Thin wall thickness
• Low pressure applications
• Used in water systems and ventilation

🔹 SCH40

• Most commonly used standard
• Balanced strength and cost
• Used in oil & gas and industrial systems

🔹 SCH80

• Thick wall pipe
• High pressure resistance
• Used in steam and chemical systems

3. Steel Pipe Size Catalogue (Overview)

👉 Note: Dimensions may vary slightly depending on ASME B36.10 standard.

4. What is ASME B36.10 Standard?

ASME B36.10 is an international standard that defines:

• Steel pipe diameters (NPS / DN)
• Wall thickness (SCH)
• Carbon steel and alloy steel pipes

5. Applications of SCH Steel Pipes

• Oil & gas pipelines
• Chemical plants
• Steam systems
• Power plants
• High-pressure industrial pipelines

6. How to Select the Correct SCH

• SCH10 → low-pressure systems
• SCH40 → standard industrial systems
• SCH80 → high-pressure and high-temperature systems

👉 Selection depends on pressure and temperature conditions.

7. Advantages of SCH Steel Pipes

• High durability
• Standardized dimensions
• Suitable for multiple industries
• Easy installation and replacement
• Globally recognized standard

8. Important Notes When Using SCH Pipes

• Do not confuse SCH with pipe diameter
• Always follow ASME standards
• Select correct material for environment
• Perform proper pressure calculation before selection

9. Reliable Supplier of Steel Pipes & Industrial Equipment

For technical consultation or quotation, contact:

Phuc Minh Engineering Co., Ltd
🌐 Website: pm-e.vn
📧 Email: info@pm-e.vn
📱 Hotline: +84 907 450 506 – +84 902 720 814 – +84 979 737 351

👉 We supply:

• SCH10 / SCH40 / SCH80 steel pipes
• Valves, flanges, and fittings
• Full CO-CQ documentation
• Project technical support

CONCLUSION

The SCH10, SCH40, SCH80 steel pipe size catalogue based on ASME B36.10 helps engineers select the correct pipe type, ensuring safety and efficiency in industrial piping systems.