Alloy 59
2.4605 – N06059
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Material description
The material 2.4605 is a chemically resistant and highly heat-resistant nickel-chromium-molybdenum alloy with a low carbon and silicon content.
2.4605 (Alloy 59) is resistant to oxidising and reducing media. The alloy also has excellent corrosion resistance, high strength and good mechanical properties.
An overview of the properties of 2.4605
- Excellent resistance to intercrystalline corrosion
- Good resistance under oxidising and reducing conditions
- High strength
Applications
- Chemical industry
- Paper industry
- Flue gas desulphurisation systems
- Environmental technology
- Waste incineration plants
Chemical composition in %
| ASTM B564/574 | VdTÜV Material sheet 505 | |
|---|---|---|
| Mo | 15,0 – 16,5 | 15,0 – 16,5 |
| Cr | 22,0 – 24,0 | 22,0 – 24,0 |
| Fe, max. | 1,5 | 1,5 |
| Co, max. | 0,3 | 0,3 |
| C, max. | 0,010 | 0,010 |
| Si, max. | 0,10 | 0,10 |
| Mn, max. | 0,5 | 0,50 |
| P, max. | 0,015 | 0,015 |
| S, max. | 0,010 | 0,010 |
| Ni | Rest | Rest |
| Al | 0,1 – 0,4 | 0,1 – 0,4 |
| Cu, max. | 0,50 | 0,5 |
Mechanical properties
| solution annealed | Bar | forging ASTM B574 | ASTM B564 | Bar | forging D ≤ 200 mm | D ≥ 200 mm |
|---|---|---|
| Rm (MPa) | ≥ 690 | 690 – 900 | 650 – 900 |
| Rp 0,2 (MPa) | ≥ 310 | ≥ 340 | ≥ 320 |
| Rp 1,0 (MPa) | ≥ 380 | ≥ 360 | |
| A (%) | ≥ 45 | ≥ 40 | ≥ 40 |
| Av (J) | ≥ 180 | ≥ 180 (D ≤ 300 mm) |
The specified values are non-binding guide values.