Some features of Alloy 31 are:
- Excellent resistance to corrosion and erosion in phosphoric acid media
- Excellent resistance to general and localized corrosion in Chloridoxid bleaching plants in paper production
- Certification to ISO 15156/MR 0175 to level VI for sour gas applications in the oil and gas industry
- Excellent resistance in reducing and oxidizing media, as well as in boiling 67% nitric acid
- Excellent corrosion resistance in alkaline and acid halide media
- Approval for pressure vessels with operating temperatures from -196 to 550 ° C
- Good processability and weldability
-Excellent resistance to sulfuric acid in a highly concentrated form
| C ≤ % |
Si ≤ % |
Mn ≤ % |
P ≤ % |
S ≤ % |
Cr % |
Mo % |
Ni |
| 0 – 0,015 | 0 – 0,3 | 0 – 2,0 | 0 – 0,02 | 0 - 0,01 | 26 - 28,0 | 6,0 – 7,0 | 30 – 32,0 |
| N % |
Cu ≤ % |
Fe | |||||
| 0,15 – 0,25 | 1,0 – 1,4 | Rest |
| Temperature Range | Material for wet corrosion |
| Density | 8,1 g/cm³ |
| Elongation at break of Alloy 31 | ≥ 40 % |
| ISO-V notch impact toughness | ≥ 185 J/cm² at room temperature ≥ 140 J/cm² at -196°C |
| • | Central/South America | • |
North America |
| • |
Asia |
• |
Mid East/Africa |
| • |
Western Europe |
• |
Australasia |
| • |
Eastern Europe |
• |
UAE |
| • | Sri Lanka | • | Bahrain |
| • | Russia | • | Egypt |
| • | Portugal | • | Turkey |
| • | Spain | • | Singapore |
| • | Brazil | • | Thailand |
| • | Chile | • | Malaysia |
| • | Venezuela | • | Indonesia |
| • | Costa Rica | • | Poland |
| • | USA, U.A.E | • | Italy |
| • | Oman | • | Canada |
| • | Saudi Arabia | • | Angola |
| • | Qatar |
