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Quality 1.6604.5
General Product Description
Material number 1.6604.5
Short name according to EN 30CND8
Applicable standards WL 1.6604
Treatment annealed or quenched and tempered
Variations
| Quality | Treatment | Shape | Dimension (mm) |
|---|---|---|---|
| 1.6604.5 | annealed or quenched and tempered |  Round | 10 - 127 |
Tim Weber
Purchasing / Aviation Sales / Authorized Representative
+49 (0) 23 31 - 387 115
weber@remystahl.de
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Pierre Hermsdorf
Authorized Officer / Head of Procurement & Sales
+49 (0) 23 31 - 387 124
hermsdorf@remystahl.de
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Description
The material 1.6604 is a Cr-Ni-Mo-alloyed quenched and tempered steel for high strength and toughness requirements with large quenched and tempered cross sections. Its Mo content makes it insensitive to tempering embrittlement. For aerospace applications it is certified according to WL 1.6604.
Chemical composition (in %)
| C | Mn | P | Mo | S | Cr | Ni | Si | |
|---|---|---|---|---|---|---|---|---|
| Min | 0,26 | 0,30 | - | 0,30 | - | 1,8 | 1,8 | 0,15 |
| Max | 0,34 | 0,60 | 0,025 | 0,50 | 0,025 | 2,3 | 2,3 | 0,4 |
| Element | Min | Max |
|---|---|---|
| C | 0,26 | 0,34 |
| Mn | 0,30 | 0,60 |
| P | - | 0,025 |
| Mo | 0,30 | 0,50 |
| S | - | 0,025 |
| Cr | 1,8 | 2,3 |
| Ni | 1,8 | 2,3 |
| Si | 0,15 | 0,4 |
Mechanical properties (quenched and tempered)
Tensile strength Rm 1100–980 N/mm2
0.2% proof stress Rp0.2 900 N/mm2
Elongation at break A5 10 (L) / 7 (Q) %
Notched impact energy (ISO-V) 25 (L) / 15 (Q) J
Hardness < 321 HB
Magnetizability No
Typical areas of application
aerospace technology
heavily loaded structural components
landing gear and engine components
shafts, axles and bolts
General properties (quenched and tempered)
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.