European Standards EN 10222-5 1.4571（ASTM A182) 316Ti Forged Ring & Flange
European Standards EN 10222-5 1.4571 (ASTM A182) 316 Ti Forged Ring & Flange
EN 10222-5 1.4571 (AISI 316Ti) forged rings and flanges refer to forgings made from titanium-stabilized austenitic stainless steel 1.4571, manufactured in accordance with European standard EN 10222-5, Part 5.
This material is known for its excellent corrosion resistance (especially superior to standard 316 stainless steel in acidic or chloride-containing environments) and resistance to high-temperature sensitization.
Rings and flanges formed through forging processes (such as ring rolling or die forging) exhibit a dense internal structure, excellent mechanical properties (such as high strength and toughness), and good machinability. They are suitable for high-pressure, high-temperature, or highly corrosive applications and are commonly found in critical pressure systems in the chemical, oil and gas, energy, and offshore industries.
Heat treatment
| Temperature in °C | Cooling | |
| Hot forming | 1.200 - 900 | Air |
| Heat treatment | ||
| Solution annealing (+AT) | 1.020 - 1.120 | Water, Air |
Processing:
| Cold forming | is possible |
| Spent processing | is possible |
| Cold diving | is possible |
| Free-form and drop forging | is possible |
Physical Properties:
| Density in kg/dm3 | 8,0 |
| Electrical resistance at 20°C in (Ω mm2)/m | 0,75 |
| Thermal conductivity at 20°C in W/(m K) | 15 |
| Specific heat capacity at 20°C in J/(kg K) | 500 |
Chemical composition
| 1.4571 X6CrNiMoTi17-12-2 |
C | Si | Mn | P | S | Cr | Mo | Ni | V |
| min. | 16,5 | 2,0 | 10,5 | ||||||
| max. | 0,08 | 1 | 2 | 0,045 | 0,03 | 18,5 | 2,5 | 13,5 |
| 1.4571 X6CrNiMoTi17-12-2 |
Al | Cu | N | Nb | Ti | Sonstiges |
| min. | 5xC | |||||
| max. | 0,7 |
EN 10222-5 1.4571 Forged Ring & Flange Application
Chemical and petrochemical plants: Reactors, heat exchangers, and piping systems handling sour gases.
Pharmaceutical and food processing: Sanitary fittings and aseptic tank flanges.
Steam turbine components, boiler flanges, and exhaust systems in nuclear or fossil fuel power plants.
Marine and desalination: Pump casings, brine heater flanges, and reverse osmosis components exposed to seawater.
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