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Steel circle delivery forms1.8550 / 34CrAlNi7V / 34Х2НМЮ Steel circles Steel grades Dimensions supplied (mm) Steel circle 1.8550 / 34Х2НМУ 15 – 650 Steel 1.8550 / 34CrAlNi7V / 34Х2НМУ Steel chemistry 1.8550 Element Min Max Si – 0.4000 S – 0.0350 P – 0.0250 Ni 0.8500 1.1500 Mo 0.1500 0.2500 Mn 0.4000 0.7000 Cr 1.5000 […]
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Steel circles |
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| Steel grades | Dimensions supplied (mm) |
| Steel circle 1.8550 / 34Х2НМУ | 15 – 650 |
Steel chemistry 1.8550
| Element | Min | Max |
| Si | – | 0.4000 |
| S | – | 0.0350 |
| P | – | 0.0250 |
| Ni | 0.8500 | 1.1500 |
| Mo | 0.1500 | 0.2500 |
| Mn | 0.4000 | 0.7000 |
| Cr | 1.5000 | 1.8000 |
| C | 0.3000 | 0.3700 |
| Al | 0.8000 | 1.2000 |
Mechanical properties of steel 1.8550
| YieldRp0.2 (MPa) | TensileRm (MPa) | Impact KV/Ku (J) | ElongationA (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
| 125 (≥) | 399 (≥) | 33 | 22 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 433 |
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Steel circles |
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| Steel grades | Dimensions supplied (mm) |
| Steel circle 1.8550 / 34Х2НМУ | 15 – 650 |
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