Inconel 625 Nickel Alloy
Inconel 625 (UNS N06625) is a nickel-chromium-molybdenum-niobium alloy. Through solid solution strengthening and the formation of γ" phase with niobium elements, it possesses high strength, fatigue resistance and corrosion resistance. Its outstanding resistance to chloride stress corrosion makes it suitable for extreme environments such as marine engineering, aerospace and chemical equipment.
Chemical Composition
|
Ni |
C |
Cr |
Fe |
Al |
Ti |
Si |
Mn |
P |
S |
Co |
Mo |
Cu |
Nb |
|
|
Min |
Rem |
- |
20 |
- |
- |
- |
- |
- |
- |
- |
- |
8 |
- |
3.15 |
|
Max |
0.1 |
23 |
5 |
0.4 |
0.4 |
0.5 |
0.5 |
0.015 |
0.015 |
1 |
10 |
0.07 |
4.15 |
Material Properties
|
Density |
Melting Point |
Minimum Mechanical Properties of the Alloy at Room Temperature |
||
|
Tensile Strength |
Yield Strength |
Elongation |
||
|
g/cm3 |
℃ |
Rm N/mm2 |
Rp0.2 N/mm2 |
A5% |
|
8.4 |
1290-1350 |
760 |
345 |
30 |
Standards
ASTM B443 ,ASTM B906,ASTM B446
Feature
Comprehensive corrosion resistance:
1. Excels in oxidizing/reducing environments
2. Resists pitting/crevice corrosion & chloride-induced SCC
3. Tolerates inorganic/mixed acids
4. HCl resistance up to 40°C
5. Good fabricability/weldability
6. Certified for -196~450°C pressure vessels
7. NACE MR-01-75 Level VII compliant
Applications
Chloride/pulp/FGD applications:
• Acid chloride catalyst components
• Pulp digesters/bleach tanks
• Flue gas desulfurization absorbers
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