Thép không gỉ S32053, SUS 836L Super Austenitic
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UNS S32053, SUS 836L - Super Austenitic Stainless Steel
SUS 836L, UNS S32053, ASME Code Case 2445-2 is a high corrosion resistance austenitic stainless steel with a high nickel, high chromium, high molybdenum alloy design, and provides excellent corrosion resistance in severe corrosion environments such as high temperature seawater. Depending on the environment, this stainless steel offers high economy combined with corrosion resistance comparable to that of Nickel alloy and pure titanium. Shanghai Bozhong Steel Group supplies this product in plate, sheet, strip, bar form.
Other form you can tell us, we could custom produce.
Khả năng làm việc
The hot and cold workability of SUS 836L is basically the same as that of standard austenitic stainless steels such as Type 304, Type 316, etc. However, the fact that this is a high strength material must be considered in both cold and hot working.
Khả năng hàn
Various welding methods are applicable in the same manner as with the standard austenitic stainless steels, including shielded metal arc welding, TIG welding, and plasma welding. Alloy 276 welding consumable should be used.
Machinability
As a feature of high Ni stainless steels, although machining is difficult in comparison with the standard austenitic stainless steels, it is easier than with Ni-based alloys. A ultrahard tool should be used in machining if at all possible. It is also advisable to use a slower feed rate and deeper cutting depth.
Nhiệt khí
Because SUS 836L is an austenitic stainless steel, heat treatment is equivalent to that with the standard austenitic stainless steels. The following heat treatment conditions are normally used:
- Solution heat treatment: 1125~1175℃; Water cooling
- Stress relief heat treatment: 450~550℃; Air cooling
Dưa chua
A mixture of nitric acid and hydrofluoric acid is used in pickling. However, due to the high corrosion resistance of NAS 254N, scale is somewhat difficult to remove in comparison with Type 304. Therefore, the material should be immersed in an alkaline solution before pickling, or if possible, shot blasting is extremely effective.
Các ứng dụng
- Seawater environments: Marine structures, seawater desalination systems, heat exchangers using seawater, condenser tubes, etc.
- Chemical plants: PC manufacturing plants, bis-phenol A manufacturing plants, carbon black manufacturing plants, etc.
- Pulp and paper plants: Various types of bleaching systems, scrubbers, etc.
- Medical and pharmaceutical product plants: Centrifugal separators, reaction tanks, etc.
- Food product plants: Soy sauce fermentation tanks, salty mirin tanks, dressing manufacturing equipment, etc.
- Pollution prevention systems: Thermal power plant flue gas desulfurization plants, etc.
