Inconel 725 Sheets High Strength Nickel Alloy Sheets Sour Service Chloride Resistant Offshore Use
Inconel 725 Sheets High Strength Nickel Alloy Sheets Sour Service Chloride Resistant Offshore Use
Product Description – Inconel 725 Sheets Nickel Chromium Alloy Sheet
Inconel 725 Sheets are precipitation-hardenable nickel-based alloy sheets designed to provide a unique combination of high mechanical strength and advanced corrosion resistance in aggressive service environments. Through controlled additions of chromium, molybdenum, niobium, and titanium, Inconel 725 Sheets achieve both solid solution strengthening and age-hardening capability, enabling them to perform reliably under high stress and corrosive conditions. This makes them particularly suitable for applications where both mechanical load and environmental resistance are critical.
In chloride-containing environments, including seawater and offshore conditions, Inconel 725 Sheets demonstrate excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Their performance in sour gas environments containing hydrogen sulfide (H₂S) further supports their widespread use in oil and gas operations across regions such as the Middle East, Southeast Asia, and offshore platforms worldwide. Compared to conventional corrosion-resistant alloys, Inconel 725 Sheets provide enhanced durability and structural reliability.
These sheets can be fabricated in the solution-annealed condition and subsequently strengthened through aging heat treatment, offering flexibility in manufacturing and performance optimization. Their consistent behavior under cyclic loading and harsh chemical exposure makes them suitable for critical components such as subsea equipment, pressure systems, and structural reinforcements. For demanding industrial applications requiring a balance of corrosion resistance, strength, and long-term performance stability, Inconel 725 Sheets offer a technically advanced and dependable material solution.
Inconel 725 Sheets Specification Table – Dimensions & Standards
| Parameter | Value |
|---|---|
| Thickness | 0.5 mm – 6 mm |
| Width | 1000 mm – 2000 mm |
| Length | 2000 mm – 6000 mm |
| Surface | Cold Rolled, Hot Rolled, Pickled |
| Form | Sheet |
| Standards | ASTM B805, AMS 5598, UNS N07725 |
Inconel 725 Sheets 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 Sheets Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 827 MPa (aged condition) |
| Yield Strength | ≥ 586 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 35 HRC |
Inconel 725 Sheets 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 Sheets Key Features – Nickel Alloy Sheet Advantages
- High strength achieved through precipitation hardening
- Excellent resistance to sour gas and chloride environments
- Strong resistance to pitting and crevice corrosion
- Reliable performance under high load and cyclic stress
- Good fabrication flexibility before aging treatment
- Suitable for demanding offshore and subsea applications
Inconel 725 Sheets Applications – Nickel Alloy 725 Sheet Uses
Inconel 725 Sheets for Oil and Gas Systems
Used in sour service equipment, wellhead components, and pressure systems
Inconel 725 Sheets in Offshore and Subsea Equipment
Applied in seawater-exposed structural and load-bearing components
Inconel 725 Sheets for Chemical Processing Equipment
Suitable for aggressive chemical handling systems and reactors
Inconel 725 Sheets in Marine Engineering
Used in corrosion-resistant structural and reinforcement applications
Inconel 725 Sheets for High Strength Industrial Components
Applied in fasteners, connectors, and load-bearing assemblies
Inconel 725 Sheets Frequently Asked Questions (FAQ)
What is the advantage of Inconel 725 Sheets compared to Inconel 625?
Inconel 725 Sheets provide higher strength due to precipitation hardening while maintaining strong corrosion resistance.
Are Inconel 725 Sheets suitable for sour gas environments?
Yes, they perform well in environments containing hydrogen sulfide and chlorides.
Can Inconel 725 Sheets be heat treated?
Yes, they can be aged after fabrication to significantly increase strength.
Where are Inconel 725 Sheets typically used?
They are widely used in oil and gas, offshore, marine, and chemical processing industries.
Do Inconel 725 Sheets resist seawater corrosion?
Yes, they offer excellent resistance to seawater and chloride-induced corrosion.
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