Item

C

Si

Mn

Cr

S

P

Mo A1 Cu Ni Nb Ti V B Mg

High Cr alloy Cylpebs

18.3-3.3

0.3-1.2

1.5-2.5

10-13

≤0.15

≤0.15

Minim

Low Cr alloy cylpebs

1.7-3.5

0.6-1.5

0.3-1.0

0.3-1.0

≤0.15

≤0.15

Minim

Item

Metal microstructure

Hardness

M-martensite

High Cr alloy Cylpebs

M+C

≥58

P-pearlite

Low Cr alloy cylpebs

P+C

≥48

C-carbide

Sizes

Φ8×8

Φ10×10

Φ10×12

Φ12×12

Φ12×14

Φ14×14

Φ14×16

Φ16×16

Φ16×18

Φ18×18

Φ18×20

Φ20×20

Φ20×25

Φ25×30

Φ30×35

Φ35×40

Other requirements on size and chemical composition need and can be consulted.