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ISO 898 Class 12
ISO 898 12.9
Chemistry
Base Element Fe(Iron)
| Element | Min | Max |
|---|---|---|
| C(Carbon) | 0.50% | |
| P(Phosphorus) | 0.025% | |
| S(Sulphur) | 0.025% | |
| B (Boron) | 0.003% |
| Mechanical Properties | Min | Max |
|---|---|---|
| Hardness (Brinell) | 380 HB | 429 HB |
| Hardness (Rockwell C) | 39 HRC | 44 HRC |
| Hardness (Vickers) | 285 | 435 HV |
| Tensile | 1220 MPA | |
| 0.2% Lower Yield Strength | 1100 MPa | |
| Elongation | 8% | |
| Reduction of Area | 44% |
Heat treatment; quenched and tempered.
General Bolting
Disclaimer:
Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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