Density: 8.0 g/cm³
Equivalent designations: Alloy 31 ,DIN 1.4562, UNS N08031
Typically the alloy has PREN of ≥ 48, which ensure that the resistance to pitting corrosion is high.
Available products for Alloy 31:
Welded pipe/tube
Seamless pipe/tube
Pipe fittings
Flanges
Bar/Profiles
Sheet/ Plate/Coil/Strip
Wire/Wire rope
Forgings
Welding Rod
Fastener
Chemical composition:
| Grade | Chemical Component % | ||||||||||
| C | Si | Mn | S | P | Cr | Ni | Mo | Fe | Cu | N | |
| Alloy31 | Max 0.015 | Max 0.3 | Max 2.0 | Max 0.01 | Max 0.02 | 26.0-28.0 | 30.0-32.0 | 6.0-7.0 | balance | 1.0-1.4 | 0.15-0.25 |
Application:
1. components for flue gas desulfurization (FGD) plants
2. plants for the production of phosphoric acid via the wet digestion process
3. pipes and heat exchangers for sulfuric acids contaminated with chlorides
4. pipes containing ocean water and brackish water, condensers and chillers
5. pickling plants for sulfuric acid as well as nitric-hydrofluoric acid
6. treatment of sulfuric acids from waste
7. evaporation and crystallization of salts
8. components for the cellulose and paper industry
9. digestion of ores, e.g. in HIPAL (high-pressure acid leach) plants for the digestion of laterite ores
10. mineral oil production and refineries
11. organic acids and ester synthesis
12 fine chemicals
13 strain-hardened transport and feed pipes as well as slicklines, wirelines and flowlines in the transport of oil and gas