C

Si

Mn

Cr

Mo

Cu

S

P

1.8-3.2

0.5-1.5

0.4-1.5

0.8-3.5

0-0.6

0-0.6

0.15

0.15

Microstructure

Toughness without Notch

< J/cm²>

Hardness<HRC>

P+C

1.5

4550

P-Pearite             C-Carbide

Specification

Weight<kg>

φ30×60×39×16

0.28

φ34×68×51×16

0.46

φ42×84×63×26

0.75

φ48×96×73×30

1.25

φ57×114×83×34

2.0

φ64×128×89×36

2.5

φ72×144×99×44

3.95

φ79×158×109×44

5.22

φ86×172×119×48

6.75

φ90×125×90×47

5.1