35Cro (GB / T 3077) yog chromium- molybdenum {round steel engeyered rau kev ntxhov siab heev, nrog cov khoom siv cov khoom siv ntau heev:
Lub zog tensile:980-1175 MPa tom qab quenching (850 degree) thiab tempering (550 degree), ua kom nws tiv thaiv cov roj tho kev thiab crane Shafts.
Paib lub zog:Ntau dua los yog sib npaug rau 835 MPa, kom ntseeg tau tsawg heev nyob rau hauv kev ntxhov siab (piv txwv li hauv lub cav sib txuas cov pas nrig).
Kev Cuam Tshuam Cov:Loj dua los yog sib npaug rau 63 J ntawm 20℃(Charpy V- Imme- tseem ceeb rau cov khoom siv tsuas yog ua haujlwm.
Hardness:229-286 HB Tom qab kev kho cua sov, ntsuas hnav hnav tsis kam thiab cov tshuab luam ntawv rau cov khoom nyuaj xws li gearboxes.
Cov cwj pwm no los ntawm nws Chemistry: 0.32-0.40% MN, 0.70-0% MN (0.7-0.70% MO (0.7-0.70% MO (UAS 1.7220 (Lub teb chaws Yelemees), nrog ua-}}}}}}}} Cov khoom lag luam hlau rov qab bar rau high {18} cov khoom siab. "