H21/1.2581 Hot Work Mould Steel
Applications: Hot-work tool steel for Die casting tools, forming dies, die inserts, hot shear blades. Highly stressed hot work tools, pressure casting dies and metal extrusion tools for processing heavy metal aloys, tools for the manufacture of hollows, tools for the screws manufacture, nuts, rivets and bolts. Such as mandrels, dies and containers for metal tube and rod extrusion with very good thermal conductivity.
Steel Grade:
GB 3Cr2W8V %
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
W
|
V
|
|
0,30 - 0,40
|
<= 0,40
|
<= 0,40
|
<=0,030
|
<= 0,030
|
2.20 – 2.70
|
7.50 – 9.00
|
0.20 - 0.50
|
DIN- 1.2581, %
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
W
|
V
|
|
0,25 – 0,35
|
0,15 - 0,30
|
0,20 - 0,40
|
<= 0,035
|
<=0,035
|
2,50 - 2,80
|
8.0 - 9.0
|
0,30 - 0,40
|
Similar grade: AISI-H21,SKD5
Delivery Condition:
|
|
GB/T1299-2000
|
DIN
|
AISI
|
|
Annealed (HB)
|
255~207
|
<=240
|
207 - 235
|
Size available
Square/Round Bar: 60~ 100mm
Flat: Min thickness, 100mm ; max width, 620mm