309 grade stands out as a specialized alloy designed to excel in high-temperature environments. 309 stainless steel, known as SS309, is especially valued for its heat resistance, which makes it ideal for certain industrial processes.
309 stainless steel is an austenitic steel, which means it possesses excellent corrosion resistance and toughness. It is composed of 20-23% chromium, 12-15% nickel, and a small percentage of manganese, silicon, and carbon. This unique composition gives the 309 stainless steel outstanding resistance to high-temperature environments and oxidation.
Compared to other types of austenitic steels like the 304 stainless steel, the 309 is less prone to stress corrosion cracking and has a higher resistance to creep deformation,which makes the 309 stainless steel ideal for use in high-temperature applications, such as furnace parts, heat exchangers, and aircraft and jet engine components.
309 Stainless Sheet Specification
|
ITEM |
Stainless Steel Sheet/Plates Coils |
|
Brand |
HNJBL |
|
Material |
310S.316.316L.321.347,304,309,309S,etc |
|
Standard |
GB, AISI, ASTM, JIS |
| Application |
Foodstuff, Gas, metallurgy, biology, etc |
|
Package |
Standard export sea-worthy packing or customized |
|
Lead Time |
3-15 days after deposit,depending on the quanity |
|
Payment |
TT/LC,etc |
309 Stainless Steel Chemical Composition
| Chromium | Nickel | Carbon | Manganese | Phosphorus | Sulfer | Silicon |
| 22.0 min.-24.0 max. | 12.0 min.-15.0 max. | 0.20 | 2.00 | 0.045 | 0.030 | 0.75 |
309 SS Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. |
| SS 309 | S30900 | 1.4828 |
309 Stainless Steel Sheet Mechanical Properties
| 0.2% Offset Yield Strength, ksi | Tensile Strength, ksi | Elongation % | Hardness (Brinell) MAX |
| 30 min. | 75 min. | 40 | 217 |
309 Stainless Sheet Physical Properties
| Properties | Metric | Imperial |
| Density | 8 g/cm3 | 0.289 lb/in³ |
| Melting point | 1455°C | 2650°F |
309 SS Sheet Surface Finish
309 Stainless Steel sheet is available in various surface finishes, including 2B (cold-rolled, annealed, and pickled), No. 4 (brushed finish), and others, depending on the specific requirements of the application.
FAQ
Q: Are you trading company or manufacturer?
A: We are factory.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: Can you OEM or ODM?
A: Yes, we have a strong development team. Stainless Steel Plate Products can be produced according to your requirements.
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