Loj Diameter Seamless Steel Yeeb Nkab Alloy Seamless Steel Tube

Lus piav qhia luv luv:

40Cr steel yog ib qho ntawm cov hlau siv dav tshaj plaws hauv kev tsim khoom siv tshuab.Tom qab quenching thiab tempering, nws muaj cov cuab yeej zoo txhua yam, zoo kub tsis tshua muaj kev cuam tshuam toughness thiab tsis tshua muaj notch rhiab heev.Lub hardenability ntawm cov hlau yog zoo, thiab nws yuav quenched mus rau qhov siab tshaj plaws thaum dej quenched Ф 28 ~ 60mm, roj quenched rau Ф 15 ~ 40mm. Thaum lub hardness yog 174 ~ 229hb, tus txheeb ze machinability yog 60%.Cov hlau yog tsim los ua cov yas pwm nruab nrab.