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- Model NO.: FHMC 0325-08
- Molding Style: Forging
- Application: Machinery Parts
- Heat Treatment: Annealing
- Forging Tolerance: +/-0.5mm
- Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
- Metal Material: Customized per Customer Request
- Price: Available at Current Market Rates
- Specification: ISO9001-2008, SGS
- HS Code: 75051250
- Processing Object: Metal
- Molding Technics: Hot Forging
- Material: Super Alloy
- Surface Treatment: Machined Finish
- Standard: ASTM
- Size Range: 1"-24"
- Date of Delivery: 30 Days After Order Confirmation
- Trademark: FHMC-0325-1
- Origin: Jiangyin, China
Inconel 625
| UNS |
Trademark |
JIS |
W.Nr |
| N06625 |
Inconel 625 |
NCF625 |
2.4856 |
Inconel 625 Chemical Composition
| Alloy |
% |
Ni |
Cr |
Mo |
Nb |
Fe |
Al |
Ti |
C |
Mn |
Si |
Cu |
P |
S |
| 625 |
Min. |
balance |
20 |
8 |
3.15 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| Max. |
23 |
10 |
4.15 |
5 |
0.4 |
0.4 |
0.1 |
0.5 |
0.5 |
0.5 |
0.015 |
0.015 |
Inconel 625 Physical Properties
| Density |
8.4 g/cm³ |
| Melting Point |
1290–1350°C |
Inconel 625 – Minimum Mechanical Properties at Room Temperature
| Alloy Status |
Tensile Strength (Rm) N/mm² |
Yield Strength (Rp0.2) N/mm² |
Elongation (A5) % |
Brinell Hardness (HB) |
| Solution Treatment |
760 |
345 |
30 |
≤220 |
Key Characteristics of Inconel 625:
1. Excellent corrosion resistance in both oxidizing and reducing environments.
2. Strong resistance to pitting, crevice corrosion, and stress corrosion cracking from chlorides.
3. High resistance to inorganic acids like nitric, phosphoric, sulfuric, and hydrochloric acid.
4. Suitable for a wide range of acidic mixtures.
5. Maintains good corrosion resistance even in high concentrations of hydrochloric acid up to 40°C.
6. Easy to machine and weld with no sensitivity to cracking during welding.
7. Certified for use in pressure vessels at temperatures ranging from -196°C to 450°C.
8. Meets the highest standard level VII for acidic environments as authorized by NACE (MR-01-75).
Inconel 625 has a face-centered cubic crystal structure. When heated for a long time, carbon precipitates and unstable phases are dissolved, forming stable Ni3(Nb,Ti) intermetallics around 650°C. The nickel-chromium content enhances mechanical strength while reducing ductility.
This alloy exhibits excellent corrosion resistance in various media, including resistance to pitting, crevice corrosion, intergranular corrosion, and oxidation. It also performs well against inorganic acids such as nitric, phosphoric, sulfuric, and hydrochloric acid. In both oxidizing and reducing conditions, it resists alkali and organic acid corrosion and shows strong resistance to chloride-induced stress corrosion cracking.
In seawater and industrial environments, Inconel 625 remains highly resistant to corrosion and is not sensitive to welding at high temperatures. It also demonstrates good resistance to oxidation and carburization in static and cyclic environments, as well as chlorine corrosion.
Inconel 625 is widely used in the chemical process industry due to its superior corrosion resistance and high strength. It is ideal for structural parts in applications involving localized mechanical stress in marine environments.
Common Applications Include:
1. Organic chemical components containing chloride, especially in acid chloride catalysts.
2. Digesters and bleachers in paper pulp and papermaking industries.
3. Absorption towers, re-heaters, gas inlet boards, fans, blenders, condensers, flues, and more in flue gas desulfurization systems.
4. Equipment used in acidic gas environments.
5. Acetic acid and anhydride reaction vessels.
6. Sulfuric acid cooling systems.
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Jiangsu Kaihuida New Material Technology Co., Ltd , https://www.khdchemical.com