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Anonymous users2024-02-06<> Incoloy 825 is a fully austenitic nickel-iron-chromium alloy stabilized with copper and molybdenum added. Incoloy 825 is a general-purpose engineering alloy that is resistant to acid and alkali metal corrosion in both yanglizing and reducing environments.
Incoloy 825 is a similar grade.
NS142 (China), NC21FEDU (France), NICR21MO (Germany), NA16 (UK), Incoloy825, UNS NO8825 (USA), NIFE30CR21MO3 (ISO).
The high nickel content gives the alloy effective resistance to stress corrosion cracking. It has good corrosion resistance in various media, such as sulfuric acid, phosphoric acid, nitric acid and organic acids, alkali metals such as sodium hydride, potassium hydride and yanic acid solutions. The high overall performance of Incoloy 825 is reflected in the nuclear combustion dissolver with a wide variety of corrosive media, such as sulfuric acid, nitric acid and sodium hydride, all in the same plant.
Incoloy825 Chemical Composition.
Nickel Ni: 38-46
Chromium Cr: Fe: Margin.
C: Manganese Mn:
Silicon Si: Molybdenum Mo:
Copper Cu: Cobalt Co:
Aluminum Al: Titanium Ti:
Incoloy825 alloy properties.
Good resistance to stress corrosion cracking.
Good resistance to pitting corrosion and crevice corrosion.
Very good resistance to yangation and non-yangation of hot acids.
It has very good mechanical properties at room temperature and high temperatures up to 550°C.
Certified to manufacture pressure vessels up to 450 degrees Celsius.
Incoloy825 alloy application field.
Incoloy 825 is widely used in a wide range of industrial applications with a service temperature of up to 550 °C.
Typical applications are:
Heating pipes, containers, baskets and chains for sulfuric acid pickling plants.
Seawater cooling heat exchangers, marine product piping systems, acid gas environment piping.
Heat exchangers, evaporators, washing, impregnation tubes, etc. in phosphoric acid production.
Air heat exchangers in petroleum refining.
Food Engineering. Chemical processes.
Flame retardant alloys for pressure gas applications.
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Anonymous users2024-02-05incoloy825
The high nickel content of IncoloY825 gives the alloy effective resistance to stress corrosion cracking. It has good corrosion resistance in various media, such as sulfuric acid, phosphoric acid, nitric acid and organic acids, alkali metals such as sodium hydroxide, potassium hydroxide and hydrochloric acid solutions. The high overall performance of Incoloy 825 is reflected in the nuclear combustion dissolver with a variety of corrosive media, such as sulfuric acid, nitric acid and sodium hydroxide, all in the same plant.
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Anonymous users2024-02-041. The model preparation method of the valve is as follows:
z 4 1 h - 25 c
Gate valve, spur gear, internal thread, alloy steel, pressure, WCB material.
In numbered order:
1 Type Code Type Code Name.
Gate valve Z plug valve X
Globe valve j check valve and foot valve h
Throttle valve l Safety valve A
Ball valve Q Pressure Reducing Valve Y
Butterfly valve d Trap S
Diaphragm valve G plunger valve U
Note: Valves with low temperature (below -40 degrees Celsius), thermal insulation (with heating layer) and bellows are added before the type code.
d""b" and "w" are Chinese pinyin letters.
2. Transmission mode code Transmission mode code.
Electromagnetic brake 0 bevel gear 5
Electromagnetic-hydraulic 1 Pneumatic 6
Electro-Hydraulic 2 Hydraulic 7
Worm Gear 3 Gas-Hydraulic 8
Spur gear 4 electric 9
Note: (1) Hand wheels, hand sheaths and wrench transmissions, safety valves, pressure reducing valves, and traps are omitted from this code.
2) For pneumatic or hydraulic: normally open type is represented by 6k, 7k; Normally closed type is represented by 6b and 7b; The pneumatic belt is indicated by 6s manually, and the explosion-proof electric belt is represented by "9b". Worm-T-nuts are denoted by 3t.
3. Connection form Code Connection form Code.
Female thread 1 pair clamp 7
Male thread 2 clamp 8
Flange 4 Ferrule 9
Weld 64 seat seal face or lining material designation.
Copper alloy T nitriding steel D
Rubber x carbide y
Nylon plastic n
Lining J fluoroplastic f
Lead lining q tin-based bearing alloy (babbitt) b
Tang porcelain C alloy steel h
Boronized steel P Note: The seal surface material code of the valve seat directly processed by the valve body is indicated by "W", when the sealing surface material of the valve seat and disc (ram).
At the same time, it is indicated by the designation of a low-hardness material (except for diaphragm valves).
5. Valve body material code Valve body material code.
Grey cast iron Z cr5mo I
Malleable cast iron K 1Cr18Ni9Ti P
Ductile Iron Q Cr18Ni12Mo2Ti R
Copper and copper alloy T 12CrMov V
wcb c
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