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Quality 1.7729
General Product Description
Material number 1.7729
Short name according to EN 1.7729
Applicable standards EN 10269, TLV 918501, 0-2813-1055-00
Treatment quneched and tempered
Variations
| Quality | Treatment | Shape | Dimension (mm) |
|---|---|---|---|
| 1.7729 | quneched and tempered |  Round | 18,17 - 120 |
Description
Connecting parts, mechanical engineering
Chemical composition (in %)
| C | Cr | Ni | Mo | Al | Mn | Si | B | P | S | Ti | Sn | V | Cu | As | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 0,17 | 0,9 | - | 0,9 | 0,015 | 0,35 | - | 0,001 | - | - | 0,07 | - | 0,6 | - | - |
| Max | 0,23 | 1,2 | 0,2 | 1,10 | 0,08 | 0,75 | 0,4 | 0,01 | 0,02 | 0,015 | 0,15 | 0,02 | 0,8 | 0,2 | 0,020 |
| Element | Min | Max |
|---|---|---|
| C | 0,17 | 0,23 |
| Cr | 0,9 | 1,2 |
| Ni | - | 0,2 |
| Mo | 0,9 | 1,10 |
| Al | 0,015 | 0,08 |
| Mn | 0,35 | 0,75 |
| Si | - | 0,4 |
| B | 0,001 | 0,01 |
| P | - | 0,02 |
| S | - | 0,015 |
| Ti | 0,07 | 0,15 |
| Sn | - | 0,02 |
| V | 0,6 | 0,8 |
| Cu | - | 0,2 |
| As | - | 0,020 |
Mechanical properties (quenched and tempered) < DIA 100
Tensile strength Rm 820-1000 820-1000 N/mm2
0.2% proof stress Rp0.2 660 660 N/mm2
Elongation at break A5 15 15 %
Notched impact energy (ISO-V) 40 27 J
Hardness 245–310 245–310 HB
Magnetizability No
Typical areas of application
fasteners
structural components with high fatigue strength
Mechanical engineering
screws 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.