Incoloy800

Incoloy 800 alloys typically have a Cr composition of 15-25% and a nickel content of 30-45% with a small amount of aluminum and titanium. Incoloy 800 alloys are in the martensitic single engineering zone after fast cooling from high temperature, thus, the application is a single martensitic body. The alloy has a high chromium composition and sufficient nickel composition, so it has a high heat-resistant corrosion performance and is used more in industrial production. It has good resistance to intergranular corrosion cracking in fluoride, low concentration NaOH solution and ultra-high pressure high temperature water, so it is used to produce intergranular corrosion cracking resistant machinery and equipment.

Incoloy800 similar model China: 0Cr20Ni32AlTi USA: No8800 Japan: NCF800 Germany: X2NiCrAlTi3220 Incoloy800 main use chemical nuclear generator sodium cyanide cooling tower, acetic anhydride cracking tube thermal equipment, heat exchange tube. Incoloy800 specification ASTMB409....... Stainless steel plate hot rolled steel ASTMB514...... stainless steel plate cold rolled plate ASTMB515...Stainless steel plate/acid resistant steel cold rolled strip Incoloy800 availability hot tied or hot rolled, resolved by heat treatment process, air oxidation state or by pickling passivation Incoloy800 corrosion resistance work ability corrosion resistance is better than the general low alloy steel, but also better than Incolo600 alloy; in the manufacture of corrosion-resistant internal stress cracking machinery and equipment, and better than Incolo600 and Monel400 alloy. Heat treatment 1、The temperature range is 1200℃～950℃, the cooling method is water quenching or rapid air cooling. 2, in order to obtain the characteristics and resistance to stress relaxation, after heat treatment to carry out aging treatment. 3、The raw material can be sent into the furnace that has been raised to 1200℃ at the same time, heat insulation and thermal insulation for a sufficient period of time after the rapid release of the furnace, in the standard temperature range to carry out heat treatment. When the temperature of the raw material drops to less than the heat treatment temperature, it needs to be heated again. Cold drawing 1, the cold hardening rate exceeds that of low-alloy steel, so the choice of production equipment must be carried out. Cold-drawn raw materials should be heat-treated and tempered heat treatment process state, and in the cold-drawing volume is relatively large to carry out the middle quenching. 2, if the cold-drawing amount exceeds 10%, the product must be carried out on the second aging treatment. Incoloy800 welding method is suitable for the selection of all traditional type welding methods with the same raw materials or other metal welding, such as tungsten electric level plasticity gas shield welding, low temperature plasma argon arc welding, manual production sub argon arc welding, metal material pole plasticity gas shield welding, melting pole plasticity gas shield welding, in which a single pulse arc welding plan program. If you choose manual arc welding, it is highly recommended to apply (Ar + He + H2 + CO2) as the maintenance vapor.