Incoloy 028 (UNS N08028) alloy application.
Incoloy028 has strong resistance to interstitial corrosion and pitting corrosion. It is one of the most corrosive alloys in commonly used high-ni alloys and 300 type stainless steels, with good comprehensive corrosion resistance and chloride ion corrosion resistance. In addition, IncoloY028 has high intercrystalline corrosion resistance.
1) Equipment for the manufacture of phosphoric acid by wet process, especially heat exchangers for the concentrated part.
Corrosion of phosphoric acid.
b) ** Superheated capacitors in the refining period;
4) Seawater pipes, condensing equipment, coolers;
5) Used as tubing, sleeve, liner in deep dispersed gas wells. It shows great strength when used in a cold working state.
Ability to learn. 6) The evaporation device of corrosive agent alkali can prevent the corrosion of sodium hydroxide and crystal salt.
Incoloy 028 (UNS N08028) alloy machining.
Heat treatment. The dissolution treatment should be carried out between 1080 and 1200. The thickness is greater than 1For 5 mm parts, water cooling or rapid air cooling is recommended. For maximum corrosion protection, water cooling or rapid cooling is required. In all heat treatment processes, be sure to pay attention to the cleaning issues mentioned earlier.
Incoloy028 is a nickel-based alloy whose main components include:
Ni (nickel): about 46-48%.
Fe (iron): about 26-28%.
CR (chromium): about 19-22%.
MO (molybdenum): up to about 3%.
CU (copper): Up to about 25%
MN (manganese): up to about 1%.
SI (Silicon): Up to about 05%
s (sulfur): up to about 003%
c (carbon): up to about 003%
In addition, IncoloY028 also contains trace amounts of other elements, such as Ti (titanium), NB (niobium), Al (aluminum) and B (boron).
Alloy 800H is an austenitic iron-nickel-chromium high-temperature alloy. The alloy has good comprehensive properties in the temperature range of -253 700, and the yield strength below 650 ranks first among deformed superalloys, with good properties, machinability and weldability. It can manufacture a variety of parts with complex shapes, and has been widely used in aerospace, nuclear energy, petroleum industry and extrusion dies in the above temperature range.
Chemical composition. Carbon c: 005-0.1. Silicon si: 10, manganese mn: 15. Phosphorus p: 003, sulfur s: 015, Cr: 19 23, Molybdenum Mo: 19 23, Ni: 30 35, Copper Cu: 075, nitrogen n: , iron fe: remain.
Titanium ti: 015-0.6
Density: 795
Physical parameters: density (mg m3): 794
Melting point range ( ) 1385-1357
Specific heat (j kg.)℃）460
Resistivity (m): 0989