Free Cutting Steels

Available Diameters

Round 2.00 mm-120 mm

Hexagonal 4,00 mm.-90 mm

Square 3.00 mm-40 mm

Our standard size is 3 M length but according to customers’ demand, specific diameters and sizes can be produced.

Free cutting steel, is an unalloyed steel containing high sulphur (S) and manganese (Mn). Thanks to Manganese and sulfur which provide the opportunity of small / fragile sawdust and high speed formation. Free cutting steels’ features provide the chance to make threads, holes and etc. by multi spindel and CNC machines very easily. And let this kind of steel be known as the best workable steel.

The addition of lead (Pb) to in this type of steel, causes improvement of cutting speed. Free cutting steels are divided into three groups as case hardening. Applied heat treatment, apply reclamation treatment and applied cementation operation.

Due to it’s surface sensitivity, free cutting steels are produced within h9-h11 tolerances. 

According to customers’ demand, packaging can be done in a protective, custom packages (Jute, crate, etc.).

 

Technical Specifications Table

QUALITY

MATERIAL NO.

CHEMICAL COMPOSITION (%) OF

C

Si

Mn

Pmax

S

Pb

9 S 20

1.0711

0.13

0.05

0.60 1.20

0.10

0.18 0.25

-

9 S Mn 28

1.0715

0.14

0.05

0.90 1.30

0.10

0.27 0.33

-

9 S Mn Pb 28

1.0718

0.14

0.05

0.90 1.30

0.10

0.27 0.33

0.15 0.35

9 S Mn 36

1.0736

0.15

0.05

1.10 1.50

0.10

0.34 0.40

- 0.15

9 S Mn Pb 36

1.0737

0.15

0.05

1.10 1.50

0.10

0.34 0.40

0.35 0.15

11SMn Pb 30

1.0718

0.14

0.05

0.90 1.30

0.10

0.24 0.32

0.30

11SMn Pb 37

1.0728

0.15

0.05

1.00 1.50

0.10

0.32 0.40

0.15 0.30

Applied Cementation Treatment

10 S 20

1.0721

0.07 0.13

0.10 0.30

0.70 1.10

0.06

0.18 0.25

-

10 S Pb 20

1.0722

0.07 0.13

0.10 0.30

0.70 1.10

0.06

0.18 0.25

0.15 0.35

Reclamation Treatment

35 S 20

1.0726

0.32 0.39

0.10 0.30

0.70 1.10

0.06

0.18 0.25

-

 

45 S 20

1.0727

0.42 0.50

0.10 0.30

0.70 1.10

0.06

0.18 0.25

-

 

60 S 20

1.0728

0.57 0.65

0.10 0.30

0.70 1.10

0.06

0.18 0.25

-

 

MATERIAL NO.

EUROPE (EN)

AMERICA (SAE)

FRANCE(AFNOR)

ENGLAND(BS)

ITALIA (UNI)

JAPON (JIS)

   

Not Applied
Heat Treatment

9 SMn 28

1.0715

11 SMn 30

1213

S 52

230 M 07

9 SMn 28

SUM 22

 

9 SMn Pb 28

1.0718

11 SMnPb 30

12 L 13

S 250 Pb

230M07LEADED

9 SMnPb 28

SUM 23

 

9 SMn 36

1.0736

11 SMn 37

1215

S 30

230M07

9 SMn 36

SUM 25

 

9 SMnPb 36

1.0737

11 SMnPb 37

12 L 14

S 300 Pb

 

9 SMnPb 36

SUM 24

 

Applied Cementation Treatment

10 S 20

1.0721

 

1108

13 MF4

210 M 15

10 S 20

   

10 SPb 20

1.0722

10 SPb 20

11 L 09

13 MF4+Pb

 

10 SPb

   

Reclamation Treatment

35 S 20

1.0726

35 S 20

1140

35 MF 6

212 M 36

     

35 SMnPb 10

 

36 SMnPb 14

11 L 37

35 MF 6 Pb

216 M 36

35 SMnPb 10

   

45 S 20

1.0727

46 S 20

1146

         

60 S 20

1.0728