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- ASTM A106 Gr.C Carbon Steel Pipe
ASTM A106 Gr.C Carbon Steel Pipe - High-Temperature & High-Pressure Solution
- Material Grade:ASTM A106 Gr.C (Carbon Steel), optimized for elevated temperature and pressure applications.
- Key Attributes:Exceptional strength, weldability, and durability under harsh conditions. Ideal for seamless operations in demanding environments.
- Superiority:Higher carbon content (compared to Gr.A/B) enhances mechanical performance, making it suitable for critical infrastructure.
Chemical Composition (wt%)
Element | Content Range (%) | Notes |
Carbon (C) | ≤0.35 | Core strength element |
Silicon (Si) | ≤0.10 | Improves oxidation resistance |
Manganese (Mn) | 0.29–1.06 | Enhances hardenability |
Phosphorus (P) | ≤0.035 | Lowers ductility if excessive |
Sulfur (S) | ≤0.035 | Reduces corrosion susceptibility |
Chromium (Cr) | ≤0.4 | Minor impact on corrosion |
Nickel (Ni) | ≤0.4 | Improves toughness |
Copper (Cu) | ≤0.4 | aids atmospheric corrosion resistance |
Molybdenum (Mo) | ≤0.15 | Enhances high-temperature strength |
Vanadium (V) | ≤0.08 | Refines grain structure |
Parameter | Value Range/Standard | Notes |
Outer Diameter (OD) | 21.3 mm – 762 mm (NPS 1/8 – NPS 48) | Custom lengths available |
Wall Thickness | 2.0 mm – 140 mm | Precision-manufactured |
Hardness (HB) | ≤137 (Brinell) | Ensures machinability |
Density | ~7.85 g/cm³ | Standard carbon steel density |
Yield Strength (MPa) | ≥275 | High load-bearing capacity |
Tensile Strength (MPa) | ≥485 | Superior durability |
Surface Treatment
- Standard Finish: Black paint or varnish for corrosion protection during storage.
- Custom Options: Galvanization or anti-corrosive coatings available for specific environments (e.g., marine or chemical exposure).
Why Choose Us ?
- Quality Assurance: Rigorous testing including chemical analysis, mechanical performance checks, and non-destructive inspections (ultrasonic, eddy current).
- Expertise: Adherence to ASTM A106 standards and international certifications (e.g., NACE MR-0175 for H₂S environments).
- Flexibility: Custom sizes, lengths, and surface treatments tailored to project needs.
Applications & Industries
Petrochemical Industry:
Used for transporting oil, chemical raw materials, and intermediate products due to its high strength and corrosion resistance.
Power Generation:
Commonly employed in steam and feedwater piping systems in power plants, withstanding high temperatures and pressures.
Metallurgical Industry:
Serves as a pipeline for gases and liquids, such as in blast furnace air supply systems, enduring high temperatures and wear.
Frequently Asked Questions
Q: What distinguishes ASTM A106 Gr.C from Gr.B?
A: Gr.C has higher carbon content (≤0.35% vs. ≤0.30%), resulting in superior strength for high-pressure applications.
Q: Is this pipe suitable for H₂S environments?
A: Yes, with controlled sulfur and phosphorus levels, it complies with NACE standards for sour service.
Q: Can it be welded?
A: Yes, preheating and post-weld heat treatment are recommended to maintain integrity.
Q: What certifications do you provide?
A: Material Test Reports (MTRs) and compliance with ASTM/ASME specifications.
Q: Lead time for custom orders?
A: Typically 4–6 weeks; expedited options available based on inventory.
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