Cold-rolled-stainless-steel-coil-321 has good corrosion resistance in the atmosphere and is widely used in petrochemical, electric power, bridge and automobile industries. But the "rust" of stainless steel is not absolute, because of the special use environment, stainless steel will also occur corrosion. Medium concentration, pH value, temperature and other factors will have a greater impact on the corrosion resistance of stainless steel. For example, in the sensitization temperature range of 450 ~ 850℃, long-term use of stainless steel will occur intercrystalline corrosion.
Chemical Composition of Cold-rolled-stainless-steel-coil-321
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
321 | min. max | – 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | – | 9.0 12.0 | 0.10 | Ti=5(C+N) 0.70 |
Cold-rolled-stainless-steel-coil-321 Mechanical Properties
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
321 | 515 | 205 | 40 | 95 | 217 |
Cold-rolled-stainless-steel-coil-321 is part of the austenitic family of stainless steel. Cold-rolled-stainless-steel-coil-321 is basically a 321 grade containing a stabilizer of titanium. Cold-rolled-stainless-steel-coil-321 is a good choice for applications where heat is an issue. 321 can be used in applications up to 900 degrees Celsius where 321 is normally used up to 500 degrees Celsius. Cold-rolled-stainless-steel-coil-321 has excellent forming and welding characteristics.
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