The document provides detailed specifications and properties of special steels, particularly AISI H13, noting its high resistance to hot wear and good toughness. It outlines the physical properties, applications, heat treatment processes, and hardness ratings relevant to manufacturing processes such as casting and forging. The data includes thermal conductivity, coefficient of thermal expansion, and tempering temperatures, emphasizing its suitability for use in ejector pins and tooling.

1. VI RAT Special Steels
AISI H13 H13 D1N2344
40CrMoVS-1 C 0.39 Si 1.00 Cr 5.40 Mn 1.35 V 1.00
Steel properties High hot-wear resistance and hot durability further pretty much as good toughness, thermal fatigue resistance,
in status to hot cracking, hot wear and plastic deformation will be cool to a restricted extent.
Standards
Physical properties
AISI-HlO AFNOR 32CDV12-28
Thermal
conductivity 0
c
w/(m•k) Annealed
W/(m • K) Quenched and tempered
Coefficient of thermal expansion
20
27.1
25.4
350
30.4
27.7
700
33.2
30.4
at °C 20-100 20-200 20-300 20-400 20-500 20-600
10-0 m/(m • K) 12.0 12.4 12.7 13.1 13.3 13.5
Applications This grade is especially used for ejector pins, tool holders and shrink work chucks. It is wide used for
manufacture of casting dies, extrusion dies and forging dies.
Heat treatment Soft annealing 0
c
760 - 810
Stress-relief annealing 0
c
approx. 610 - 660
Hardening 0
c
1000-1130
Cooling
Furnace
Cooling
Furnace
Quenching
Air, oil or 55
saltbath, 500 - 550 °C
Tempering 0
c
HRC
100
54
200
53
300
53
Time-temperature transformation diagram
11001---+-+-+++++++----+-l-+-I-H++l---+-+-+-+++H+---l--i-++-,f-++Hi---+-+-+-+++H+---+--+-++-1--+1-H
1000 1---1-l-Hf-+1$:tt
'"
�+-
���"N ,�' ,
.'
900
' '
' ' '
-· . ·-·-· : -� ·-i+-t· . .800 l---t-++++t++t--f
-+',,++t-11
}.I
H+--'
'.,---,+>'<H-H' ,!.,,/ � --
,T"H -· • ·-·-· • ·-·-
0
C 700
� A,C
'--'+f�--H' , . 1..
,, ':::J 1.. lU �
,,
00
C
e 5001---1-++++++++---+-+�-
@- 500 1---+-+-+++++++----+-I-++-'
I�
,, I� l-�+-
,�
' "
400 l---t-++++++++---+-+-H-H-M-1---1--+-H -H-H--------,r-'---,
300 !:;
M
::
s
++:++l:+++l::�:+++�!+:'��:j:.oo , -�1
M I
5
2001---t-++++t++t---t-+-H-1-H+t-----'�,,+--+'.++tft
l l
-+'
rl-1H
100 - Hardness -m-it-11mmt-t'�" t;;J:ti
l
'I� :±t;
I
I�'Hrj-i;: 599'1-H
2
:.
6
_-::"1-t-tttl-t---t--,---t-t-H,-tt
Q HV 1o 634 572 488 219
0
t::i.L..L...L....u...�L.....-L....L...L...U-U.1
100 101
Time ins
102 103 104
I 1 1 111111 1 1 11111 1 I 1111 1111
100 101 102 103
Time in min 1 1 111111
100 101
Time in h
105 106
1 1 1111!1
104
1 1 111111
102
400
55
Hardness HB
max. 240
Hardness after quenching HRC
55
450
56
0
500
54
70
66
62
58
� 54
C
� 50
C
""O
@ 46
I
42
38
34
30
550
51
600
43
650
34
Tempering diagram
/
c......
0 100 200 300 400 500 600 700 800
Tempering temperature in 'C