SS201 is part of the 200 series of austenitic stainless steels. Originally developed to conserve nickel, this family of stainless steels is characterized by low-nickel content.
A240 standard specification for chromium and chromium-nickel stainless steel plate,sheet,and strip for pressure vessels and for general applications.
200 series austenitics are typically used to replace types 304 and 301 as well as Carbon (Chrome-Manganese) Steels mainly for indoor use for low corrosion applications at room temperature
201 Stainless Steel is covered by the following:
ASTM A240
ASTM A666
The stainless steel 201 can be used as ASTM 201 stainless steel plate, ASTM 201 steel coil, ASTM 201 round bar, ASTM 201 steel pipe, ASTM 201 H-beam steel and ASTM 201 square/rectangle hollow section.
201 stainless steel material chemical composition:
| Grade | C % | Cr % | Ni % | Mn % | P % | S % | Si % | N % |
| 201 | ≤ 0.15 | 16-18 | 3.5-5.5 | 5.5-7.5 | ≤ 0.06 | ≤ 0.03 | ≤ 1.00 | ≤0.25 |
201 stainless steel properties:
201 stainless steel mechanical properties:
| Grade | Yield strength | Tensile strength | Elongation δ5 | Hardness |
| σs MPa | σb MPa | % | HB | |
| 201 | ≥260 | ≥515 | ≥40 | ≤217 |
201 stainless steel Physical Properties
| Properties | Metric | Imperial |
| Density | 7.86 g/cm3 | 0.284 lb/in3 |
201 stainless steel corrosion resistance
The general level of corrosion resistance of Type 201 is similar to Type 301. Type 201 should perform adequately as a replacement for Type 301, in most mild environments. The scaling resistance of Type 201 is less than that of Type 301. Type 201 resists destructive scaling up to about 1500 °F (816 °C), about 50 °F (28 °C) less than Type 301.
201 stainless steel heat treatment:
201 stainless steel is annealed at 1010-1093°C (1850-2000°F). Temperature should not be exceeded above 2000°F in order to avoid scaling. It is rapidly cooled to prevent crystallization of carbides.
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