High Strength ：Up to 1800°F without heat treatment
Corrosion Proof： Immune to chloride stress cracking
Easy to Weld：No post-weld heat treatment required
Versatile：Aerospace, marine, chemical, nuclear
Inconel 625 is a high-performance nickel-based alloy known for its excellent strength and outstanding corrosion resistance in extreme environments.
As a professional Inconel 625 supplier, Hengyi Metal provides premium quality materials in various forms to meet industrial requirements.
For more details, check our Inconel 625 properties guide
We are also a professional nickel alloy supplier providing various materials.
Looking for a reliable Inconel 625 supplier?
Contact us now for a quotation.
Email: sales@hengyimetal.com
WhatsApp:+86 19521258704
Related Products:
Hastelloy C276
Incoloy 825
Inconel 625
Related Articles
Hastelloy C22 vs C276 Comparison
Hastelloy c2000-guide
Noted: Inconel is a registered trademark of Special Metals Corporation group of companies
Key Features
- Excellent resistance to corrosion and oxidation
- High strength without the need for precipitation hardening
- Outstanding performance in seawater and marine environments
- Strong resistance to pitting, crevice corrosion, and stress corrosion cracking
- Good weldability and fabrication properties
Applications
Inconel 625 is widely used in demanding industries:
- Marine and offshore engineering
- Chemical processing equipment
- Aerospace components
- Heat exchangers and piping systems
- Oil & gas industry
FAQ
What is Inconel 625 used for?
It is used in marine, chemical processing, aerospace, and oil & gas industries due to its corrosion resistance and strength.
Is Inconel 625 corrosion resistant?
Yes, it provides excellent resistance to a wide range of corrosive environments, including seawater and acids.
What is UNS N06625?
UNS N06625 is the material designation for Inconel 625.
Is Inconel 625 weldable?
Yes, it has excellent weldability and is suitable for complex fabrication.
Chemical Composition
| Element | Weight % (Min) | Weight % (Max) |
|---|---|---|
| Nickel (Ni) | 58.0 | Balance |
| Chromium (Cr) | 20.0 | 23.0 |
| Molybdenum (Mo) | 8.0 | 10.0 |
| Niobium + Tantalum (Nb+Ta) | 3.15 | 4.15 |
| Iron (Fe) | – | 5.0 |
| Cobalt (Co) | – | 1.0 |
| Manganese (Mn) | – | 0.50 |
| Silicon (Si) | – | 0.50 |
| Titanium (Ti) | – | 0.40 |
| Aluminum (Al) | – | 0.40 |
| Carbon (C) | – | 0.10 |
| Phosphorus (P) | – | 0.015 |
| Sulfur (S) | – | 0.015 |
Standards & Specifications
| Form | Specification |
|---|---|
| Identification | UNS N06625, Wnr2.4856, EN 10095, DIN 17744 |
| Bar | ASTM B446, AMS 5666, ASME SB446, ISO 9723, BS 3076 NA21 |
| Plate/Sheet/Strip | ASTM B443, AMS 5599, AMS 5869, ASME SB443, ISO 6208 |
| Seamless Pipe/Tube | ASTM B444, ASTM B829, AMS 5581, ASME SB444 |
| Welded Pipe/Tube | ASTM B704/B705, ASTM B751/B775, AMS 5581 Type 2 |
| Forgings | ASTM B564, AMS 5666, ASME SB564 |
| Fittings | ASTM B366, ASME SB366 |
| Filler Wire (GTAW/GMAW) | AWS A5.14 ERNiCrMo-3, AMS 5837 |
| Covered Electrode (SMAW) | AWS A5.11 ENiCrMo-3 |
| NACE | MR-01-75, ISO 15156-3 |
Item | Inconel 600 | Inconel 601 | Inconel 617 | Inconel 625 | Inconel 690 | Inconel 718 | Inconel X750 | Inconel 825 |
C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.08 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
Fe | 6-10 | rest | ≤3 | rest | 7-11 | rest | 5-9 | ≥22 |
P | ≤0.015 | ≤0.02 | ≤0.015 | — | — | — | — | — |
S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.5 |
Cu | ≤0.5 | ≤1 | — | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
Ni | ≥7.2 | 58-63 | ≥44.5 | 50-55 | ≥58 | 50-55 | ≥70 | 38-46 |
Co | — | — | 10-15 | ≤10 | — | ≤1 | ≤1 | — |
Al | — | 1-1.7 | 0.8-1.5 | ≤0.8 | — | 0.2-0.8 | 0.4-1 | ≤0.2 |
Ti | — | — | ≤0.6 | ≤1.15 | — | — | 2.25-2.75 | 0.6-1.2 |
Cr | 14-17 | 21-25 | 20-24 | 17-21 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
Nb+Ta | — | — | — | 4.75-5.5 | — | 4.75-5.5 | 0.7-1.2 | — |
Mo | — | — | 8-10 | 2.8-3.3 | — | 2.8-3.3 | — | 2.5-3.5 |
B | — | — | ≤0.006 | — | — | — | — | — |
Alloy | ASTM | DIN | BS | AFNOR | GB | |
|---|---|---|---|---|---|---|
New grades | Old grades | |||||
| Inconel 600 | UNS N06600 | 2.4816 / NiCrl 5Fe | NA14 | NC15FE | NS3102 | NS312 |
| Inconel 601 | UNS N06601 | 2.4851 / NiCr23Fe | NC23FeA | NS3103 | NS313 | |
| Inconel 625 | UNS N06625 | 2.4856 / NiCr22Mo9Nb | NA21 | NC 22 DNb | NS3306 | NS336 |
| Inconel 718 | UNS N07718 | 2.4668 / NiCr19Fe19Nb5Mo3 | NA 51 | NC19FeNb | GH4169 | GH4169 |
| Inconel X-750 | UNS N07750 | 2.4669 / NiCr15Fe7TiAl | NC15TNbA | GH4145 | GH4145 | |
| Inconel 725 | UNS N07725 | |||||
