Steel 1.7709 / 21CrMoV5-7 / 25Х1М1Ф
steel 1.7709
C | Si | Mn | P | S | Cr | Mo | Ni | V | Al | Fe |
0.17 – 0.25 | <0.4 | 0.4 – 0.8 | <0.025 | <0.03 | 1.2 – 1.5 | 0.55 – 0.80 | <0.6 | 0.20 – 0.35 | <0.03 | Others |
Mechanical properties of material 1.7709
+QT | |||||
Yield strength, MPa | Tensile strength, MPa
| Relative length, %
| Relative narrowing, % | Impact work KV at 20°C, J | Diameter, mm |
> 550 | > 700-850 | > 16 | > 60 | > 63 | < 160 |
Steel circle delivery forms 1.7709
Steel circles
Steel grades Dimensions supplied (mm) Steel Circle 1.7709 / 25Х1М1Ф 50 – 400