1.3247
HS2-10-1-8; S2-10-1-8; APS® 2042
high speed steel; tool steel; Stainless steel; alloyed
-
The material 1.3247 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.
1,05
-
-
-
-
7,50
3,50
9,00
0,90
1,20
max.
1,15
0,70
0,40
0,030
0,030
8,50
4,50
10,00
1,30
1,90
C
min.
1,05
max.
1,15
Si
max.
0,70
Mn
max.
0,40
P
max.
0,030
S
max.
0,030
Co
min.
7,50
max.
8,50
Cr
min.
3,50
max.
4,50
Mo
min.
9,00
max.
10,00
V
min.
0,90
max.
1,30
W
min.
1,20
max.
1,90
Standards and designations
Material group
Tool steel
AFNOR
HS2-9-1-8
AISI/SAE
M42
B.S.
BM42
JIS
SKH59
UNS
T11342
Special designations
APS® 2042
Fields of application
Cutting tools
Die and engraving cutters
Turning rings for automatic work
Cold extrusion and cutting punches
Attributes
Physical properties at 20° C
Density
8,12 kg/dm³
Average coefficient of thermal expansion
8,5 x 10-6 / K
Thermal conductivity
27,2 W/m K
Electrical resistance
0,524 (ohm) mm²/m
Modulus of elasticity
224 kN / mm²
Thermal treatment
Hot forming
900 - 1050 °C
Soft annealing
770 - 820 °C
Preheat
450 - 600 °C
Preheating I. stage
ca. 850 °C
Preheating II. stage
ca. 1050 °C
Hardening
1180 - 1200 °C
Tempering
540 - 560 °C
Relaxing
ca. 650°C
More properties
high heat resistance
high compressive strength
high toughness
good grindability
Delivery forms
Cut to size/custom made
Flat
Round
Square
