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UNS S30900 AISI 309 Stainless steel
This data sheet applies to stainless steel 309 / 1.4828 hot and cold rolled sheet and strip, semi-finished products, bars, rods and sections as well as for welded saccular steel tubes for mechanical and general engineering purposes.
For construction parts which should be resistant to scaling up to about 1000 °C and extensively inured to the effect of sulphurous gases. Inclination to carbonisation in reduced gases, especially above 900 °C, is very low.
| Element | % Present (in product form) | |
|---|---|---|
| C, H, P, L | TW2) | |
| Carbon (C) | 0.20 | 0.20 |
| Silicon (Si) | 1.50 - 2.00 | 1.50 - 2.50 |
| Manganese (Mn) | 2.00 | 2.00 |
| Phosphorous (P) | 0.045 | 0.045 |
| Sulfur (S) | 0.015 | 0.030 |
| Chromium (Cr) | 19.00 - 21.00 | 19.00 - 21.00 |
| Nickel (Ni) | 11.00 - 13.00 | 11.00 - 13.00 |
| Nitrogen (N) | 0.11 | - |
| Iron (Fe) | Balance | Balance |
| Product Form | |||||
|---|---|---|---|---|---|
| C, H, P | L | TW* | |||
| Thickness a or diamter d (mm) | a ≤ 12 | d ≤ 25 | a=25 | ||
| Hardness HB max. 1) 2) 3) | 216 | - | |||
| Proof Strength3) | Rp0.2 N/mm2 | 190 | 230 | ||
| Rp1.0 N/mm2 | 230 | 270 | |||
| Tensile Strength | Rm N/mm2 | 500 - 720 | min. 550 | ||
| Elongation min. in % | Long Products | 401) | - | ||
| Flat Products | 0.5 ≤ a/d ˂ 3 | 404)5) | 304)5)6) | ||
| 3 ≤ a/d | 404)5) | 304)5)6) | |||
| 1% Elongation1) for | Rupture2) for | ||||
|---|---|---|---|---|---|
| Temperature °C | 1,000 h N/mm2 | 10,000 h N/mm2 | 1,000 h N/mm2 | 10,000 h N/mm2 | 100,000 h N/mm2 |
| 600 | 120 | 80 | 190 | 120 | 65 |
| 700 | 50 | 25 | 75 | 36 | 16 |
| 800 | 20 | 10 | 35 | 18 | 7.5 |
| 900 | 8 | 4 | 15 | 8.5 | 3 |
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