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Specifications
Nickel alloy Inconel 690 bar1.Resistance to both reducing and oxidizing acids
2.ISO9001
3.Fine after-sale service
Nickel alloy Inconel 690 bar
nickel alloy inconel 690 bar has outstanding resistance to oxidizing chemicals and to high-temperature oxidizing gases. And it has resistance to stress corrosion cracking in chloride-containing environments as well as to sodium hydroxide solutions. Alloy 690 is used for applications such as coal-gasification units, burners and ducts for processing sulfuric acid, furnaces for petrochemical processing, incinerators and so on.
Specification
|
UNS
|
W.Nr |
| NO6690 | 2.4642 |
Chemical composition
| Grade | % | Ni | Cr | Fe | C | Mn | Si | Cu | S |
| 690 | Min | 58.0 | 27.0 | 7.0 | |||||
| Max | 31.0 | 11.0 | 0.05 | 0.5 | 0.5 | 0.5 | 0.015 |
Mechanical properties:(Minimum value at 20°C)
|
Tensile Strength σb/MPa |
Yield Strength σp0.2/MPa |
Elongation σ5 /% |
| 580 | 260 | 30 |
Characteristics
1.Highly resistant to various reducing chemicals
2.Excellent resistance to caustic alkalies
3.High electrical conductivity
4.Excellent corrosion resistance to distilled and natural waters
5.Resistance to neutral and alkaline salt solutions
6.Excellent resistance to dry fluorine
7.Widely used to handle caustic soda
8.Good thermal, electrical and magnetostrictive properties
9.Offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations
Applications Areas
1. Sulfuric acid factory usage for heating pipe, container, basket,chain and so on.
2. Cooling heat exchanger, marine product pipeline system and gas pipeline of acidic environment.
3. Heat exchanger, steam machine, washing, impregnation pipe, etc. for phosphoric acid produce
4. Food processing equipment.
5. Salt production .
6. Chemical process
7.Oil refining in the air heat exchanger.
8.Caustic handling equipment
9.Reactors and vessels in which fluorine is generated and reacted with hydrocarbons
10. Application of high pressure oxygen flam-retardant alloy
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