1.3243 Datasheet
HS6-5-2-5; S6-5-2-5
high speed steel; tool steel; Stainless steel; alloyed
-
The material 1.3243 is a cobalt alloyed high speed steel with very high hardness and high heat resistance. Due to its great strength, this material is mainly used for tools for machining difficult-to-machine materials.
Composition
C
Si
Mn
P
S
Co
Cr
Mo
V
W
min.
0,87
-
-
-
-
4,50
3,80
4,70
1,70
5,90
max.
0,95
0,45
0,40
0,030
0,030
5,00
4,50
5,20
2,10
6,70
C
min.
0,87
max.
0,95
Si
max.
0,45
Mn
max.
0,40
P
max.
0,030
S
max.
0,030
Co
min.
4,50
max.
5,00
Cr
min.
3,80
max.
4,50
Mo
min.
4,70
max.
5,20
V
min.
1,70
max.
2,10
W
min.
5,90
max.
6,70
Standards and designations
Material group
Tool steel
AFNOR
Z90WDKCV06-05-05-04-02
AISI/SAE
SIL 10; M35
B.S.
BM35
JIS
SKH55
Fields of application
Cutting tools
Spiral and thread taps
Turning rings for automatic work
Profile knives
High performance milling cutters
Attributes
Physical properties at 20° C
Density
7,90 kg/dm³
Specific heat
420 J/kg K
hermal conductivity
27,4 W/m K
Electrical resistance
0,49 (ohm) mm²/m
Modulus of elasticity
224 kN / mm²
Thermal treatment
Hot forming
900 - 1100 °
Soft annealing
790 - 820 °C
Preheat
450 - 600 °C
Preheating I. stage
ca. 850 °C
Preheating II. stage
ca. 1050 °C
Hardening
1200 - 1220 °C
Tempering
550 - 570 °C
Relaxing
ca. 650°C
More properties
very high heat resistance
high compressive strength
high toughness
good cutting properties
high wear resistance
Delivery forms
Cut to size/custom made
Flat
Hexagon
Round
Square
