Inconel 725 Plates Nickel Alloy 725 Plate High Strength Seawater Resistant Oil Gas Application
Inconel 725 Plates Nickel Alloy 725 Plate High Strength Seawater Resistant Oil Gas Application
Product Description – Inconel 725 Plates Nickel Chromium Alloy Plate
Inconel 725 Plates are precipitation-hardenable nickel-chromium-molybdenum-niobium alloy plates engineered for high strength and outstanding corrosion resistance in aggressive environments. By combining solid-solution strengthening with age-hardening capability, Inconel 725 Plates deliver significantly higher mechanical strength than traditional corrosion-resistant alloys while maintaining excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-containing media.
These plates are particularly effective in sour service environments where hydrogen sulfide and carbon dioxide are present, making them highly suitable for oil and gas applications across the Middle East, Southeast Asia, and offshore regions. Inconel 725 Plates also exhibit excellent resistance to seawater corrosion and acidic conditions, ensuring long-term performance in subsea and marine systems.
In addition to their corrosion resistance, Inconel 725 Plates offer good fabrication characteristics in the solution-annealed condition, followed by enhanced strength through aging heat treatment. This flexibility allows their use in demanding structural and pressure-containing applications, including wellhead components, downhole equipment, and high-load fastening systems. For projects requiring a combination of high strength, corrosion resistance, and environmental reliability, Inconel 725 Plates provide a durable and technically advanced solution.
Inconel 725 Plates Specification Table – Dimensions & Standards
| Parameter | Value |
|---|---|
| Thickness | 3 mm – 100 mm |
| Width | 1000 mm – 3000 mm |
| Length | 2000 mm – 6000 mm |
| Surface | Hot Rolled, Pickled, Machined |
| Form | Plate |
| Standards | ASTM B805, AMS 5598, UNS N07725 |
Inconel 725 Plates Chemical Composition (Nickel Alloy 725)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 55.0 – 59.0 |
| Chromium (Cr) | 19.0 – 22.5 |
| Molybdenum (Mo) | 7.0 – 9.5 |
| Niobium (Nb + Ta) | 2.75 – 4.0 |
| Iron (Fe) | ≤ 5.0 |
| Titanium (Ti) | 1.0 – 1.7 |
| Aluminum (Al) | ≤ 0.35 |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 0.35 |
| Silicon (Si) | ≤ 0.20 |
| Phosphorus (P) | ≤ 0.015 |
| Sulfur (S) | ≤ 0.010 |
Inconel 725 Plates Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 827 MPa (aged condition) |
| Yield Strength | ≥ 586 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 35 HRC |
Inconel 725 Plates Physical Properties
| Property | Value |
|---|---|
| Density | 8.2 g/cm³ |
| Melting Range | 1260 – 1340°C |
| Thermal Conductivity | 11.1 W/m·K |
| Elastic Modulus | 204 GPa |
| Electrical Resistivity | 1.2 µΩ·m |
Inconel 725 Plates Key Features – Nickel Alloy Plate Advantages
- High strength through precipitation hardening
- Excellent resistance to pitting and crevice corrosion
- Strong performance in sour gas (H₂S) environments
- Resistant to chloride-induced stress corrosion cracking
- Good fatigue strength for high-load applications
- Reliable performance in subsea and offshore systems
Inconel 725 Plates Applications – Nickel Alloy 725 Plate Uses
Inconel 725 Plates for Oil and Gas Equipment
Used in wellhead components, tubing hangers, and packers
Inconel 725 Plates in Subsea and Offshore Systems
Applied in seawater-exposed structural and pressure components
Inconel 725 Plates for Chemical Processing Equipment
Suitable for reactors and systems exposed to aggressive chemicals
Inconel 725 Plates in Marine Engineering
Used in high-strength corrosion-resistant marine structures
Inconel 725 Plates for High Load Fastening Systems
Applied in bolts, connectors, and structural reinforcement components
Inconel 725 Plates Frequently Asked Questions (FAQ)
What makes Inconel 725 Plates different from Inconel 625?
Inconel 725 Plates are precipitation-hardened, offering much higher strength while maintaining similar corrosion resistance.
Are Inconel 725 Plates suitable for sour service environments?
Yes, they perform well in environments containing hydrogen sulfide and chlorides.
Can Inconel 725 Plates be heat treated?
Yes, they can be age hardened to achieve higher strength levels after fabrication.
Where are Inconel 725 Plates commonly used?
They are widely used in oil and gas, marine, and chemical processing industries.
Do Inconel 725 Plates resist seawater corrosion?
Yes, they offer excellent resistance to seawater and chloride-induced corrosion.
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