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Quality 1.4961
General Product Description
Material number 1.4961
Short name according to EN 1.4961
AISI / UNS / Alloy AISI 347H, UNS S34709
Applicable standards EN 10302
Treatment solution annealed
Variations
| Quality | Treatment | Shape | Dimension (mm) |
|---|---|---|---|
| 1.4961 | solution annealed |  Round | 10 - 125 |
Description
The material 1.4961 is a high-temperature austenitic steel. Usual upper limit of use temperature in continuous operation 750°C. Application: mechanical engineering, apparatus engineering, components for thermal power plants, such as valves, disks, housing parts, superheaters, heat exchangers and steam line pipes.
Chemical composition (in %)
| C | Mn | P | Ti | S | Cr | Ni | Si | |
|---|---|---|---|---|---|---|---|---|
| Min | 0,04 | - | - | - | - | 15,0 | 12,0 | 0,3 |
| Max | 0,10 | 1,5 | 0,035 | 0,0001 | 0,015 | 17,0 | 14,0 | 0,6 |
| Element | Min | Max |
|---|---|---|
| C | 0,04 | 0,10 |
| Mn | - | 1,5 |
| P | - | 0,035 |
| Ti | - | 0,0001 |
| S | - | 0,015 |
| Cr | 15,0 | 17,0 |
| Ni | 12,0 | 14,0 |
| Si | 0,3 | 0,6 |
Mechanical properties (solution-annealed)
Tensile strength Rm 510–690 N/mm2
0.2% proof stress Rp0.2 ≥ 205 N/mm2
Elongation at break A5 ≥ 40 %
Notched impact energy (ISO-V) – J
Hardness ≤ 200 HB
Magnetizability No
Typical areas of application
equipment manufacturing
components for thermal power plants
Mechanical engineering
heat exchangers
pump and valve components
valves, discs, housing components
superheater
steam pipes
General properties (solution-annealed)
Corrosion Resistance
Weldability
Forgeability
Tensionability
Note
All information in this data sheet has been compiled to the best of our knowledge and belief. It is for information purposes only and does not constitute a assured property or guarantee. For the suitability of the material in specific applications, we recommend carrying out appropriate inspections and tests. Any liability for damage or errors is excluded.