Hastelloy G-3 Nickel Alloy
Hastelloy G-3(UNS N06985) is an improved version of nickel-chromium-molybdenum-copper alloy. By optimizing the composition (22% chromium/7% molybdenum), its resistance to mixed acid corrosion is significantly enhanced, making it particularly suitable for complex environments containing halides, phosphoric acid, and sulfuric acid. It has excellent welding properties and is widely used in chemical engineering, flue gas desulfurization, and pharmaceutical equipment.
Chemical Composition
|
Ni |
C |
Si |
Mn |
S |
P |
Cr |
Fe |
Cu |
Mo |
Co |
W |
Nb |
|
|
Min |
Rem |
- |
- |
- |
- |
- |
21 |
18 |
1.5 |
6 |
- |
- |
- |
|
Max |
0.015 |
0.5 |
1 |
0.01 |
0.02 |
23.5 |
21 |
2.5 |
8 |
5 |
1.5 |
0.5 |
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% |
|
8.14 |
1350-1370 |
800 |
400 |
40 |
Standards
ASTM B581,ASTM B582,ASTM B622
Feature
Excellent corrosion resistance, withstands mixed acid and oxidizing acid corrosion
Applications
Applied in demanding industrial environments: agrochemical, nuclear facilities, biopharmaceutical
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