Application
For construction parts, which should be resistant to scaling up to about 800°C and extensively inured to the effects of sulphurous gases. The inclination to carbonisation in reduced gases is very low.
Chemical Compositions*
| Element | % Present (in product form) |
Carbon (C) | 0.12 |
Silicon (Si) | 0.50 - 1.00 |
Manganese (Mn) | 1.00 |
Phosphorous (P) | 0.040 |
Sulfur (S) | 0.015 |
Chromium (Cr) | 6.00 - 8.00 |
Aluminium (Al) | 0.50 - 1.00 |
Iron (Fe) | Balance |
Mechanical properties (at room temperature in annealed condition)
| Product Form | ||||
| C, H, P | L | |||
Thickness a or diamter d (mm) | a ≤ 12 | d ≤ 25 | ||
Hardness HB max. | 192 | |||
Proof Strength | Rp0.2 N/mm2 | 220 | ||
Rp1.0 N/mm2 | - | |||
Tensile Strength | Rm N/mm2 | 420 - 620 | ||
Elongation min. in % | Long Products | 20 | ||
| Flat Products | 0.5 ≤ a/d ˂ 3 | - | ||
3 ≤ a/d | 20 | 15 | ||
