Characteristics
321 stainless steel strip is a Ni-Cr-Mo austenitic stainless steel material, its performance is very similar to 304 stainless steel strip.
But due to the addition of alloy titanium content, it has better resistance to grain boundary corrosion and high temperature strength. It effectively controls the formation of chromium carbide.
321 austenitic stainless steel strip has good corrosion resistance in the atmosphere and is widely used in petrochemical, electric power, bridge and automobile industries.
However, the “stainlessness” of 321 stainless steel is not absolute. Due to the special service environment, 321 stainless steel will also corrode.
Factors such as medium concentration, PH value, and temperature will have a greater impact on the corrosion resistance of 321 stainless steel.
Chemical Composition (%)
| Element | Minimum percentage | Maximum percentage |
| C | – | 0.08 |
| Si | – | 1.0 |
| Mn | – | 2.0 |
| P | – | 0.045 |
| S | – | 0.03 |
| Cr | 17 | 19 |
| Ni | 9 | 12 |
What is the different between 321 stainless steel strip with 347 stainless steel strip
321 and 347 in harsh corrosive media.
annealed alloy 321 in the strong oxidizing environment is slightly lower than that of the annealed alloy 347.
from 800°F to 1500°F (427°C to 816°C), the overall corrosion resistance of alloy 321 is much worse than that of alloy 347. Alloy 347 is primarily used for high temperature applications where strong resistance to sensitization is required to prevent intergranular corrosion at lower temperatures.
Applications
321 stainless steel strip is applied to the field machines in the chemical, coal, and petroleum industries that require high resistance to grain boundary corrosion, heat-resistant parts for building materials and parts with difficult heat treatment.
FAQ
A1: Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
A2: You need to provide the grade, width, thickness, quantity of you need.
A3: Under normal circumstances, we ship from Shanghai port, you can choose other ports according to your needs.
A4: In general, our delivery time is within 15 days, and may be delayed if the demand is extremely large or special circumstances occur.
