Hardening & temp.

Indicative chemical composition

UNI

DIN

W. Nr.

C

Mn

Ni

Cr

Mo

0.20

0.70

--

--

--

C20

(Ck22)

1151

0.30

0.70

--

--

--

C30

(Ck35)

1181

0.40

0.70

--

--

--

C40

(Ck40)

1191

0.50

0.70

--

--

--

C50

(Ck53)

1210

0.60

0.70

--

--

--

C60

(Ck60)

1221

0.40

--

--

1.00

0.20

40CrMo4

(42CrMo4)

7225

0.38

--

0.90

0.80

0.20

39NiCrMo3

(36CrNiMo4)

6511

0.40

--

1.75

0.80

0.25

40NiCrMo7

(40NiCrMo6)

6565

0.30

--

2.95

0.80

0.45

30NiCrMo12

--

--

Type

Status

Availability

C20 ÷ C60
40CrMo4 - 39NiCrMo3
40NiCrMo7 - 30NiCrMo12

Natural, annealed, Hardened and tempered
Hardened & tempered and stabilized

The whole set is not ready (*)

(*)

Available within 7 days from the order date thanks to conventions agreed with the most famous European Steelworks.

It is possible to produce, for the whole steel set, forged items according to drawings