1.4876 Overview:
The content of Cr in 1.4876 is usually 15-25%, and the content of nickel is 30-45%, with a small amount of aluminum and titanium.
1.4876 is in a single austenite region after high temperature and rapid cooling, so the service state is a single austenite structure.
The alloy has high chromium content and sufficient nickel content, so it has high high temperature corrosion resistance and is widely used in industry.
It has excellent stress corrosion cracking resistance in chloride, low concentration NaOH aqueous solution and high temperature and high pressure water, so it is used to manufacture stress corrosion cracking resistance equipment.
1.4876 Similar brand:
China: 0Cr20Ni32AlTi, ns11,GH11,? GH 180
United States: N08800, Incoloy800
Japan: NCF800 NAS800
West Germany: X2NiCrAlTi3220
Nicrofer 3220 alloy 800? ATI 800
1.4876 Application field:
Chemical industry, nuclear generator, nitric acid cooler, acetic anhydride cracking tube, heat exchange equipment, heat exchange tube, retort furnace, muffle furnace, heat treatment fixture and hanging basket, vacuum furnace device, chlorination equipment with the highest working temperature of 1000 Fahrenheit, titanium dioxide factory, retort furnace, heater, distiller, bubble column and condenser in fatty acid process, and sodium sulfide manufacturing process.
1.4876 standard:
ASTM B409 {\\ lang 1033 ,}
Astm b514 .................................................................................................................................................................
1.4876 supply status:
Hot rolling or cold rolling, heat treatment, oxidation or pickling treatment.
1.4876 Corrosion resistance:
The corrosion resistance is better than that of ordinary austenitic stainless steel and Inconel 600 alloy.
It is superior to Inconel 600 and Monel 400 alloys in manufacturing corrosion-resistant stress cracking equipment.
1.4876 physical properties:
Melting temperature range: 1350 ~ 1400℃
Specific heat capacity: 455 Joule/(kg Celsius)
Density: 8.0g/cm3
Magnetism: none
1.4876 processing:
hot work
1, the temperature range is 1200℃ ~ 950℃, and the cooling mode is water quenching or rapid air cooling.
2. In order to obtain the best performance and creep resistance, solution treatment should be carried out after hot working.
3. The material can be directly sent into the furnace heated to 1200℃, and then quickly discharged for heat treatment within the specified temperature range. When the material temperature drops below the hot working temperature, it needs to be reheated.
cold-working
1, the work hardening rate is higher than that of austenitic stainless steel, so it is necessary to choose processing equipment. Cold working materials should be in the state of solution heat treatment, and intermediate annealing should be carried out when the cold working amount is large.
2. If the cold working amount is greater than 10%, the workpiece needs secondary solution treatment.
1.4876 welding process:
It is suitable for welding the same material or other metals by any traditional welding process, such as tungsten inert gas shielded welding, plasma arc welding, manual sub-arc welding, metal inert gas shielded welding, metal inert gas shielded welding, etc., among which pulse arc welding is the first choice. If manual arc welding is used, (argon+helium +H2+ carbon dioxide) is recommended as the shielding gas.
1.4876 Corrosion resistance and main application environment:
INCOLOY800/800H/800HT is very similar in chemical composition, so it has good corrosion resistance to reduction, oxidation, nitriding medium and redox alternating medium, and has high metallurgical stability after long-term use at high temperature. However, due to the different (Al+Ti) contents of the three materials, the application environments of the three materials are also different, which are embodied in the following aspects: INCOLOY 800 will exert various properties at sub-zero, room temperature and high temperature of 600℃. INCOLOY 800H has good tensile strength above 600℃ because the content of (Al+Ti) is not higher than 0.7%, and it still has good toughness after long-term work below 700℃. INCOLOY 800HT has excellent yield strength above 700℃.
1.4876 main specifications:
1.4876 seamless pipe, 1.4876 steel plate, 1.4876 round steel, 1.4876 forging, 1.4876 flange, 1.4876 ring. 1.4876 welding wire and its supporting welding materials, 1.4876 round cake, 1.4876 flat steel, 1.4876 hexagonal steel bar, 1.4876 large and small head,1.
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