Steel 34CrS4

34CrS4

EN 10083-3:2002, Number: 1.7037

Comparasion of steel grades

JUS C.B9.021

Č.4180, Č.41301

DIN

34CrS4

BS

-

GOST

-

AISI

5123

UNI

-

NF

(32 C 4 u)

Chemical elements

C

Si

Mn

P

S

Cr

%, by mass

0,30 - 0,37

Ł 0,40

0,60 - 0,90

max 0.025

0.020-0,040

0,90-1,20

Permissible deviation

± 0.02

± 0,03

± 0,04

+ 0.005

±  0.005

± 0.05

d  ≤ 16mm oder t ≤ 8mm

16mm < d  ≤ 40mm

8mm < t  ≤  20mm

40mm < d  ≤ 100mm

20mm < t  ≤  60mm

100mm <  d  ≤ 160mm

60mm < t  ≤  100mm

160mm < d  ≤  250mm

100mm < t  ≤  160mm

Re _min (MPa)

700

590

460

-

-

Rm (MPa)

900-1100

800-950

700-850

-

-

A  min. (%)

12

14

15

-

-

Z  min. (%)

25

40

45

-

-

KV min. (J)

35

40

40

-

-

Distance in mm from quenched end Hardness in HRC  (mm)

mm

1,5

3

5

7

9

11

13

15

20

25

30

35

40

45

50

+H

max.

57

57

56

54

52

49

46

44

39

37

35

34

33

32

31

min.

49

48

45

41

35

32

29

27

23

21

20

-

-

-

-

+HH*

max.

57

57

56

54

52

49

46

44

39

37

35

34

33

32

31

min.

52

51

49

45

41

38

35

33

28

26

25

24

23

22

21

+HL*

max.

54

54

52

50

46

43

40

38

34

32

30

29

28

27

26

min.

49

48

45

41

35

32

29

27

23

21

20

-

-

-

-

Hardening temperature in the end quench test

Quenching temperature

Quenching in

Tempering temperature

850⁰±5⁰C

830-870 ⁰C

Wate or oil

540-680 ⁰C

+S
HB max.

+A
HB max.

255

223