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ASTM A666 201 Hot Rolled Stainless Steel Sheet Cooling 304 Plate 0.6mm 25mm thin stainless steel sheets
| 201 | C | Si | Mn | P | S | Ni | Cr |
| ≤0.15 | ≤1.00 | 5.5~7.50 | ≤0.050 | ≤0.03 | 3.50~5.50 | 16.00~18.00 |
| 201 | Tensile Strength: | 520MPa |
| Yield strength : | 275MPa | |
| Elongation: | 55 to 60% | |
| Elastic Modulus: | 203000MPa | |
| Hardness | HRB<183N/mm2(MPa) | |
| Density : | 7.93g/cm3 |
History of 201 Stainless Steel
200 series of stainless steel is in the World War II, as 300 series of stainless steel substitutes in the United States first developed successfully. At that time, due to the reasons for the war, as a strategic material of nickel by the countries concerned strictly control, the United States a serious shortage of nickel supply. In order to solve the problem of stainless steel production and supply in the case of a serious shortage of nickel supply, the United States has developed a series of new grades of austenitic stainless steel of manganese nickel.
After the end of World War II, the US nickel supply situation gradually improved, therefore, 300 series stainless steel production is no longer subject to tight constraints of raw materials, so the 200 series will no longer be a big development. Several Indians who had been involved in the development of 200 series stainless steels were returned from India to India, which is a relatively rich source of manganese resources and a lack of nickel resources. The 200 series of stainless steel varieties developed in the United States are brought back to India.
The success of the 200 series of stainless steel applications in India is due to the possibility of replacing 304 stainless steel in some specific applications.
