Nominal diameter range :6-50mm.standard recommends of diameter range :6,8,10,12,16,20,25,32,40,50mm.chinacoal05
Material:100% C Si Mn P S Ceq
HRB335 0.25 0.80 1.60 0.045 0.045 0.52
HRB400 0.25 0.80 1.60 0.045 0.045 0.54
HRB500 0.25 0.80 1.60 0.045 0.045 0.55