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Product Info
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Type 309 Stainless Bar
| Product Description |
| Type 309 is an austenitic chromium-nickel modification of Type 304 with superior heat-resisting characteristics. It offers slightly better corrosion resistance than Type 304 because of the higher percentages of both chromium and nickel. In addition, these alloys possess better creep strength than the straight chrome grades. |
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| Specifications |
| ASTM A276, ASTM A479, AMS5650, QQS763 |
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| Weldability |
| Satisfactory |
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| Corrosion Resistance |
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Annealed. Because of the higher chromium and nickel contents, the corrosion resistance of these grades is slightly better than that of Stainless Type 304.
These alloys have better corrosion resistance than Type 304 in hot petroleum products. Types 309 also has higher resistance to sulfite liquors in paper and paper pulp mills and are useful for handling nitric acid, nitric sulfuric acid mixtures, acetic, citric and lactic acids. If exposed to the temperature range of 800° / 1500° F (427° to 816° C).
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