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Ferritic stainless 439
Grade 439 is a ferritic stainless steel that outperforms type 409 in both Oxidation resistance and corrrosion resistance.
Type 439 stainless is stabilized with a titanium addition resulting in good weldability. It has higher thermal conductivity and lower coefficient of expansion than austensitic grade 304.
Typical applications:
Chemical composition ( weight % )
| Grade | C | Si | Mn | P | S | Cr | Ni | N | Ti | Al |
| 439, 1.4510, X3CrTi17 | 0.03 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 17.0~19.0 | 0.50 max | 0.03 max | 0.2+4(C+N), min. - 0.80 max | 0.15 max |
Available forms
439 hot and cold rolled stainless steel sheet, plate, strip, and coil
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