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UNS N06600 is a nickel-chromium alloy that provides excellent resistance to oxidation at high temperatures. It is also commonly used as a corrosion resistant alloy due to its resistance against a range of acids and alkalis. Nippon Yakin supplies this product in plate, sheet, and strip forms.
GradeAlloy 600
UNSN06600
EN / DIN2.4816
JISNCF 600
Chemical Composition77Ni-16Cr-6Fe
Metal working in progress
Coil
Sheet
Plate
Workability
Hot working is relatively easy with Alloy 600. For hot working, temperature should be between 1000 and 1180℃, although light work may be done at temperature as low as 850℃. The range between 650 and 850℃ should be avoided as cracking may occur. Cold workability is easier than austenitic stainless steels, similar to Monel.
Weldability
As with standard austenitic stainless steels, Alloy 600 may be welded using techniques such as TIG, MIG, and shield metal arc welding. For edge preparation, mechanical cutting is desirable. Wide U- and V-groove angles should be used. Care should be taken to ensure it's welding portion is clean as Alloy 600 is sensitive to surface contamination.
Heat Treatment
The following heat treatment may be used:
Annealing: 800~1150℃; Air or water cooling
Care should be taken at temperatures exceeding 1050℃ as there is a strong tendency for the crystal grains to become coarse.
Machinability
As a high-nickel alloy, Alloy 600 is not as machinable as an austenitic stainless steel. A high-speed steel cutting tool may be used, though a sintered carbide tool is recommended. Also, the feed speed should be somewhat reduced, aiming for deep cutting. The recommended lathe feed speeds are as follows:
High-speed steel tool: 1050~1350mm/min
Sintered carbide tool: 3000~5250mm/min
After machine work, lubricants should be completely removed before welding or heat treating.
Properties at High Temperatures
Exhibiting particularly superior oxidation resistance at high temperatures, Alloy 600 can be used in air as well as other environments continuously for long periods of time. Because it has excellent resistance to nitrogen, hydrogen and carburization, Alloy 600 can be used in heat treatment furnaces. Care is needed with wet chlorine and bromide, however, as they will cause damage. The maximum temperatures that Alloy 600 may be used in different environments are as follows:
Long-term continuous use in air oxidizing environment: 1100℃
Reducing environment of H2 or CO not containing sulfur: 1150℃
Oxidizing sulfur environment (in air containing sulfurous acid): 815℃
Nuclear power plants, heat exchangers, industrial chemical evaporators, industrial acid and alkali equipments, heat treatment furnace parts, afterburner parts and other components used at high temperatures.
TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia... TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia...
