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EN standard high chromium molybdenum content 34CrMo4 steel properties

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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