EN standard high chromium molybdenum content 34CrMo4 steel properties make the steel suitable for machine Structural use. 1.7220 is the EN numeric designation for 34CrMo4 steel.
High chromium molybdenum content 34CrMo4 steel has features of high strength, high hardenability, high toughness, and small quenching deformation and so on.
EN standard high chromium molybdenum content 34CrMo4 steel properties - chemical composition:
| Grade | Number | C | Si max. | Mn | P max. | S | Cr | Mo |
| 34CrMo4 | 1.7220 | 0.30 to 0.37 | 0.40 | 0.60 to 0.90 | 0.025 | max. 0.035 | 0.90 to 1.20 | 0.15 to 0.30 |
EN standard high chromium molybdenum content 34CrMo4 steel properties - mechanical properties at room temperature in the quenched and tempered (QT) condition:
| t = 8 mm | 8 mm < t = 20 mm | 20 mm < t = 60 mm | ||||||||||||
| Re | Rm | A | Z | KV | Re | Rm | A | Z | KV | Re | Rm | A | Z | KV |
| min. | min. | min. | min. | min. | min. | min. | min. | min. | min. | min. | min. | min. | min. | min. |
| MPa | MPa | % | % | J | MPa | MPa | % | % | J | MPa | MPa | % | % | J |
| 800 | 1000 to1200 | 11 | 45 | - | 650 | 900 to 1100 | 12 | 50 | 40 | 550 | 800 to 950 | 14 | 55 | 45 |
| 60 mm < t = 100 mm | 100 mm < t = 160 mm | |||||||||||||
| Re | Rm | A | Z | KV | Re | Rm | A | Z | KV | |||||
| min. | min. | min. | ||||||||||||
| MPa | MPa | % | % | J | MPa | MPa | % | % | J | |||||
| 500 | 750 to 900 | 15 | 55 | 45 | 450 | 700 to 850 | 15 | 60 | 45 | |||||
EN standard high chromium molybdenum content 34CrMo4 steel properties - heat treatment:
| Grade | Number | Quenching | Quenching agent | Tempering | End quench test |
| °C | °C | °C | |||
| 34CrMo4 | 1.7220 | 830 to 890 | Oil or water | 540 to 680 | 850 ± 5 |
Above is the main EN standard high chromium molybdenum content 34CrMo4 steel properties, which are also the most concerned items by the 34CrMo4 steel users. BBN steel is professional 34crmo4 steel supplier. For more information about 34CrMo4 steel, please feel free to consult BBN steel.
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