Material: HTR -45#
C: 0,42-0,50% Si: 0,17-0,37% Mn: 0,50-0,80% Cr: ≦0,25% S: ≦0,035%
Material: HTR-B2
C: 0,75-0,85% Si: 0,17-0,37% Mn: 0,70-0,85% Cr: 0,40-0,60% S: ≦0,02%
Material: HTR-B3
C: 0,56-0,66% Si: 1,30-1,90% Mn: 0,70-0,90% Cr: 0,80-1,10% S: ≦0,02%