SS 309 Sheets (DIN 1.4828) has as well better-quality of corrosion resistance and enhanced creep power as Alloy 304. Buy Grade 309 Stainless Steel Plates at reasonable cost from us. The high content of nickel and chromium in Machining Grade 309 Steel Coils offers similar corrosion resistance, the retaining of a superior segment of room temp potency and bigger resistance to oxidation than the collective austenitic Stainless Steel 304. These Alloy 309 Plates are austenitic alloys with chromium-nickel content in that are being generally used for soaring temp functions. Meanwhile, Alloy 309 Sheets (UNS S30900) can be machined as same as SS 304.
EQUIVALENT GRADES FOR STAINLESS STEEL 309 / 309S SHEET & PLATE
| STANDARD | WERKSTOFF NR. | UNS | EN | AISI |
| SS 309 | 1.4828 | S30900 | X12CrNi23-13 | 309 |
| SS 309S | 1.4833 | S30908 | X12CrNi23-13 | 309S |
CHEMICAL COMPOSITION OF SS 309 / 309S SHEETS & PLATES
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
SS 309 | 0.20 max | 2 max | 1 max | 0.045 max | 0.030 max | 18.0 – 23 | – | 8.0 -14 | – |
SS 309S | <=0.080 max | <=2.00 max | <=0.75 max | <=0.040 max | <=0.015 max | 22.00-24.00 max | – | 12.00-14.00 | – |
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