Inconel 725 Sheet / Plate / Coil
Inconel 725 is a nickel-chromium-molybdenum alloy strengthened by niobium and titanium additions, offering exceptional resistance to corrosion, stress corrosion cracking (SCC), and high-temperature oxidation. As a leading
UNS N07725 EN 2.4858 W. Nr. 2.4858
Huaxiao-Alloy’s Inconel 725 products adhere to globally recognized standards for critical industrial and marine applications:
ASTM B443 (Plate/Sheet) ASTM B444 (Seamless Pipe/Coil) ASME SB443 NACE MR0175/ISO 15156 DIN 17742
Our
Available Product Specifications
| Sheet | 0.5–40 | 800–3000 | 2000–8000 | Cold-rolled, Annealed |
| Plate | 5–150 | 1500–4000 | 3000–12000 | Hot-rolled, Pickled |
| Coil | 0.5–8 | 400–1800 | Custom | Annealed, Polished |
Custom dimensions and tolerances are available from this
Mechanical Properties
Inconel 725 excels in aggressive environments, including sour gas and seawater:
Tensile Strength: 1000–1200 MPa Yield Strength (0.2% Offset): 550–750 MPa Elongation: 20–30% Hardness: 250–320 HB Density: 8.22 g/cm³
These properties make Huaxiao-Alloy’s
Chemical Composition
| Element | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 58–63 | 19–23 | 7–9.5 | 2.75–4.0 | ≤5.0 | 1.0–1.7 | ≤0.03 | ≤0.35 | ≤0.35 |
The niobium and titanium additions enhance precipitation hardening, a key feature of Huaxiao-Alloy’s
Cross-National Designations
| Country | ||
|---|---|---|
| USA | ASTM/ASME | UNS N07725 |
| Europe | EN | 2.4858 |
| Japan | JIS | NCF 725 |
| Germany | DIN | W. Nr. 2.4858 |
| China | GB | NS3405 |
As a global
Key Characteristics
Corrosion Resistance: Exceptional resistance to pitting, crevice corrosion, and sulfide stress cracking (SSC). High Strength: Maintains mechanical integrity in temperatures up to 700°C (1292°F). Weldability: Compatible with TIG, MIG, and submerged arc welding (SAW). Fatigue Resistance: Performs under cyclic loading in harsh environments. Hydrogen Embrittlement Resistance: Ideal for sour gas wells and hydrogen-rich applications.
These attributes position Huaxiao-Alloy’s
Applications
Oil & Gas: Downhole tubing, Christmas trees, subsea connectors. Marine Engineering: Propeller shafts, seawater valves, desalination systems. Chemical Processing: Reactors, heat exchangers, and acid-handling equipment. Power Generation: Flue gas desulfurization (FGD) systems, turbine components. Aerospace: High-stress fasteners, engine components.
Trust Huaxiao-Alloy, a premier
Why Choose Huaxiao-Alloy?
Industry Leadership: 20+ years of expertise in corrosion-resistant alloys. Custom Solutions: Precision machining, heat treatment, and non-destructive testing (NDT). Rapid Turnaround: 95% on-time delivery via our global logistics network. Certified Quality: Full traceability with Mill Test Certificates (MTCs) and 3.1/3.2 reports. Sustainability: Eco-friendly practices aligned with ISO 14001 and RoHS directives.
Our
Inconel 725 Sheet supplier team offers 24/7 technical support, including corrosion testing and application engineering.
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FAQs
Solution annealing at 980–1020°C (1796–1868°F) followed by aging at 720°C (1328°F) optimizes strength and corrosion resistance.
Yes, all Inconel 725 products are certified for sour service per NACE MR0175/ISO 15156.
Absolutely. Its high chromium and molybdenum content ensures resistance to chloride-induced pitting and crevice corrosion.
Inconel 725 offers superior strength (yield strength ~750 MPa vs. 550 MPa for 625) due to its precipitation-hardening capability.
Standard stock items ship in 2–3 weeks; custom orders require 6–8 weeks for processing and testing.
