... 45(mm) Chemical composition: Popuar Grade Item:ZQCr10 C(1.8-3.2%),Si(0.3-1.2 ... Bars Item:ZQRc10,ZQCr26,ZQCr20,ZQCr17 Chemical composition: C(2.0-3.2%), Si(1%max),Mn( ... Hardness(a minimum surface hardness of 58 HRC) Microstructure:M+C Application cement, metallurgy, mine, construction material, water coal ... after receive the copy of B/L or L/C Delivery negotiable Origin China Minimum Order 10 MT Packaging ...