Alloy 825 (UNS N08825) is an austenitic nickel-iron-chromium alloy with additions of molybdenum, copper and titanium. It was developed to provide exceptional resistance to numerous corrosive environments, both oxidizing and reducing.
Incoloy 825 is widely used in many kinds of industry field that the working temperature is no more than 550ºC.
Incoloy 825 Typical application field:
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. Oil refining in the air heat exchanger
5. Food project
6. Chemical process
7. Application of high pressure oxygen flam-retardant alloy
Incoloy 825 Stud bolt Chemical composition:
| Alloy | % | Ni | Cr | Fe | C | Mn | Si | Cu | Mo | Al | Ti | P | S |
| 825 | Min. | 38 | 19.5 | 1.5 | 2.5 | 0.6 | |||||||
| Max. | 46 | 23.5 | balance | 0.05 | 1 | 0.5 | 3 | 3.5 | 0.2 | 1.2 | 0.03 | 0.03 |
Incoloy 825 Stud Bolt minimum mechanical properties
| Alloy state | Tensile strength Rm N/mm² |
Yield strength RP0. 2 N/mm² |
Elongation A5 % |
Brinell hardness HB |
| 825 | 550 | 220 | 30 | ≤200 |
Incoloy 825 Stud Bolt specification
Material: Incoloy 825, 2.4858,N08825
Standard:DIN 976,Fully Threaded Stud Bolts, ASME B18.2.1, B18.2.3.5M
Hardness: Max. 200 HB
Size: 1/2 inch to 4in .M12-M100
Length: as per request
Feature: Good resistance to stress corrosion cracking
Application: For Industrial areas where the temperature does not exceed 550 degrees Celsius