HSS Bar
Chemical composition table %
|
Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
W
|
V
|
|
1.3343
|
0.86-0.94
|
≤0.45
|
≤0.40
|
≤0.030
|
≤0.030
|
3.80-4.50
|
4.70-5.20
|
5.90-6.70
|
1.70-2.10
|
|
M2
|
0.78-0.88
|
0.20-0.45
|
0.15-0.40
|
≤0.030
|
≤0.030
|
3.75-4.50
|
4.50-5.50
|
5.50-6.75
|
1.75-2.20
|
|
W6Mo5Cr4V2
|
0.80-0.90
|
0.20-0.45
|
0.15-0.40
|
≤0.030
|
≤0.030
|
3.80-4.40
|
4.50-5.50
|
5.50-6.75
|
1.75-2.20
|
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Releif annealing temperature:720-760
Hardening temperature:1210-1230
Hardening medium:salt bath under 600,oil cooling or air cooling is ok too
nomal temper temperation:540-560
RC Rockwell Hardness after hardening and temper:63-66
Characteristic:Tungsten-molybdenum high speed steel developed by China,high performance in toughness,hardeness,high temperature hardness.