Product Overview – ASTM A106 Grade C Seamless Pipes
ASTM A106 Grade C seamless pipes represent the highest strength grade within the A106 specification, making them suitable for heavy-duty industrial and high-pressure applications.
Compared to Grade B, Grade C offers higher tensile and yield strengthallowing it to perform efficiently in systems exposed to greater mechanical stress and pressure conditions.
These pipes are manufactured through the seamless process to ensure uniform microstructure, improved strength, and reliability in critical applications.
Due to their enhanced mechanical properties, ASTM A106 Gr C pipes are commonly used in boilers, high-pressure pipelines, power generation systems, and structural applications where durability is essential.
They are the preferred choice when projects demand extra strength without moving to alloy steel grades.
Standard & International Identification - ASTM A106 Grade C Seamless Pipes
Technical Specifications – ASTM A106 Gr C Pipes
| Pipe Type: | Seamless Carbon Steel Pipes |
| Manufacturing Process: | Hot Rolled / Cold Drawn → Heat Treated → Tested |
| Outer Diameter: | 10 mm to 600 mm |
| Wall Thickness: | 2 mm to 75 mm |
| Length: | Single Random Length/Double Random Length/Custom Cut Length |
| Surface Finish: | Black Painted/Varnished/Galvanized (Optional) |
| Testing Methods: | Hydrostatic Test,Ultrasonic Testing,Eddy Current Testing,Visual Inspection |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A106 / ASME SA106 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – ASTM A106 Grade C
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.35% |
| Manganese (Mn): | 0.29 – 1.06% |
| Silicon (Si): | 0.10% |
| Phosphorus (P): | 0.035% |
| Sulfur (S): | Max 0.035% | Iron : | Balance |
Note: The above chemical composition enhances ASTM A106 Grade C pipes with higher strength and improved pressure resistance, making them suitable for demanding industrial environments.
Mechanical Properties – ASTM A106 Gr C Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 485 MPa |
| Yield Strength | 275 MPa |
| Elongation | 30% |
These mechanical properties allow ASTM A106 Grade C seamless pipes to handle high pressure and mechanical stress while maintaining long-term durability.
Performance Under High Stress Conditions
ASTM A106 Grade C pipes are designed for applications where standard carbon steel grades may fall short.
What makes Grade C different:
These pipes are selected when systems demand extra strength without shifting to alloy steel solutions.
Industry-Specific Applications of ASTM A106 Grade C pipes
- Where ASTM A106 Grade C pipes are used:
- 🔸High Pressure Boiler Systems
- 🔸Thermal Power Generation Plants
- 🔸Oil & Gas Transmission Pipelines
- 🔸Heavy Engineering & Fabrication Projects
- 🔸Refinery & Petrochemical Units
- 🔸Structural Load-Bearing Applications
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