The Stainless Steel 309S Coils are the austenitic alloys of stainless steel. The SS 309S Coils are used to engineer both household and industrial structures. The Stainless Steel 309S Coils are formulated to be the austenitic alloys of their basic stainless steel. These SS 309S grade coils consist of the two most required elements for immunity of the SS 309S grade against oxidation and acids. Thus the SS 309S Coils are asked for their use in high-temperature responsibilities. These two elements are chromium and nickel. The higher levels of chromium and nickel offer the S 309S great resistance against general and aggressive corrosion. The SS 309S Coils have good resistance against the process of oxidation.
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The heat resistance of the SS 309S Coils develops between the temperature ranges of a room’s temperature and slightly more than that, and while this happens, the SS 309S provides strength to the object. In the chemical composition of the Stainless Steel 309S grade, the carbon element is higher than that of the Stainless Steel 309 grade. Therefore, the high carbon content in SS 309S grade assists in decreasing the carbide precipitation and bettering the weldability. The destructive scale of temperature is roughly about 1093℃. Meanwhile, the SS 309 Coils are well-resistant to scaling in periodic and continuous heating.
The Stainless Steel 309S Coils are fabricated to attain and achieve numerous conventional and technological purposes. These SS 309S Coils contribute to many of the appliances, machines, equipment, units, and systems in the factories of various industries by being a part of their components. Hence, a few applications of the Stainless Steel 309S Coils are utilized in almost all the chemical and petrochemical industry, auto exhaust elements, heat exchangers, sulphite liquor handling systems, kiln liners, boiler baffles, aircraft and engine parts, heating units, refinery equipment.
| STANDARD | UNS | JIS | WERKSTOFF NR. | AFNOR | BS | GOST | EN |
| SS 309S | S30908 | SUS 309S | 1.4833 | – | – | – | – |
| Grade | Fe | Cr | Ni | Mn | Si | C | P | S |
| SS 309S | Reminder | 22.0-24.0 | 12.0-15.0 | 2.0 max | 1.0 max | 0.08 max | 0.045 max | 0.030 max |
| Yield Strength 0.2% Offset0 |
Ultimate Tensile Strength |
Elongation in 2 in. |
Hardness | ||
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 45,000 | 310 | 85,000 | 586 | 50 | 202 (HBN) |
