PRODUCT NAME :
high speed tool steel
STANDARD:
GB/T9942-1988 GB/T9943-1988 ISO4957
GRADE COMPARISION:
|
GB |
ГОСТ |
ASTM |
BS |
JIS |
NF |
DIN |
|
W18Cr4V |
P18 |
T1 |
BT1 |
SKH2 |
Z80WCV |
S18-0-1 |
ULTRASONIC STANDARD:
GB/T6402-2008 / SEP921-84. ASTM A388
CHEMICAL COMPOSITION:
|
C |
Si |
Mn |
P≤ |
S≤ |
Cr |
Mo |
W |
V |
|
0.70/0.80 |
0.20/0.40 |
0.10/0.40 |
0.03 |
0.03 |
3.8/4.4 |
≤0.3 |
17.5/19.0 |
1.0/1.4 |
HEAT TREATMENT SPECIFICATION & MECHANICAL PROPERTIES:
Under annealing condition hardness 255HBW，under cold drawing condition hardness 269HBW，under cold drawing and
annealing condition hardness 262HBW。
Preheat 815-870℃，quenching temperature ：salt bath furnace 1175℃，controled Nitrogen furnace 1288℃. Tempering
temperature550℃，hardness ≥63HRC。
DELIVERY CONDITION :
annealed
DIMENSION : mm
|
ROUND STEEL BAR |
COIL ROD |
WIRE |
SQUARE/ FLAT |
|
FORGED BAR |
ROLLED BAR |
HOT ROLLED |
COLD DRAW |
FORGED |
ROLLED |
|
80-250 |
16-250 |
∮5.5-20 |
∮0.2-13 |
120-800×120-800 |
5-38×44-150 10-90×60-305 |
APPLIED RANGE:
Used for cold extruding punch pin, heavy load cold heading punch pin.
REMARK：
Above listed parameters and sepcification only for reference . Specific parameters according to standard. Requirments beyond
standard will be negotiate by both sides .
Delivery state:annealed, spheroidal annealed, quenched & tempered ,bright bar, cold-drawn, etc.
Listed specifications are only typical grades; products of required specifications can be developed/produced per international,
Chinese or industry standards, or based on agreements with customers
