Product Overview -ASTM A672 EFW Pipes
ASTM A672 pipes are manufactured using Electric Fusion Welding (EFW), from high-quality carbon steel plates, making them suitable for high temperature and high-pressure applications.
These pipes are available in various grades such as C60, C65, and C70, along with multiple class combinations depending on heat treatment and testing requirements.
Compared to ASTM A671, A672 pipes are specifically designed for elevated temperature service, making them ideal for boilers, power plants, and thermal systems.
They undergo extensive heat treatment, radiographic testing, and inspection ensuring reliability in critical industrial environments.
These pipes are widely used in power generation, petrochemical industries, and refinery systems.
Standard & Material Identification - ASTM A672 EFW Pipes
Technical Specifications – ASTM A672 EFW Pipes
| Pipe Type: | Electric Fusion Welded Pipes |
| Manufacturing Process: | Steel Plate → Forming → EFW Welding → Heat Treatment → Testing |
| Outer Diameter: | 350 mm to 2000 mm |
| Wall Thickness: | 6 mm to 50 mm |
| Length Options: | Up to 12 meters/Custom Fabricated Lengths Available |
| Surface Finish: | Bare/Painted/3LPE Coated/FBE Coated |
| Testing Methods: | Radiographic Testing (RT)/Ultrasonic Testing/Hydrostatic Testing/Charpy Impact Test (if required)/PMI Testing |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A672 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – ASTM A672 Pipes
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.30% |
| Manganese (Mn): | 0.85 – 1.50% |
| Phosphorus (P): | 0.035% |
| Sulfur (S): | Max 0.035% |
| Iron | Balance |
Note: The composition depends on the base material used (such as pressure vessel quality plates), ensuring strength and thermal stability.
Mechanical Properties – ASTM A672 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 415 – 585 MPa |
| Yield Strength | 240 MPa |
| Impact Test | As per class requirement |
Mechanical properties vary depending on grade and class, enabling customization for high temperature applications.
Grades & Classes Available
Common Grades
- 🔸CC60
- 🔸CC65
- 🔸CC70
Class Types
- 🔸Class 10 – No heat treatment
- 🔸Class 11 / 12 – With heat treatment
- 🔸Class 20 / 22 – With radiography
- 🔸Class 30 / 32 – With full NDT + impact testing
High Temperature Performance Advantage
ASTM A672 EFW pipes are engineered for extreme operating environments.
- Why industries rely on them:
- 🔸Designed for high temperature service
- 🔸Suitable for high-pressure systems
- 🔸Large diameter capabilities
- 🔸Customizable grade and class options
- 🔸Reliable in thermal cycling conditions
This makes them essential for power plants and industrial systems.
Industry Applications of ASTM A672 pipes
- Where ASTM A672 pipes are used:
- 🔸Thermal Power Plants
- 🔸Boilers & Heat Recovery Systems
- 🔸Refineries
- 🔸Petrochemical Plants
- 🔸High Temperature Pipelines
- 🔸Industrial Process Systems
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