PRODUCT NAME :
plastic mould steel
STANDARD:
GB/T1299-2000 ISO 4957
GRADE COMPARISION:
|
GB |
ГОСТ |
ASTM |
JIS |
NF |
DIN |
|
3Cr2NiMo |
35CrMo2 |
P20 |
SNCM |
718 |
1.2738 |
ULTRASONIC STANDARD:
GB/T6402-2008 / SEP921-84. ASTM A388
CHEMICAL COMPOSITION:
|
C |
Si |
Mn |
P≤ |
S≤ |
Cr |
Mo |
Ni |
|
0.34/0.42 |
0.20/0.60 |
1.1/1.50 |
0.02 |
0.02 |
1.40/2.00 |
0.20/0.40 |
0.80/1.20 |
HEAT TREATMENT SPECIFICATION:
MECHANICAL PROPERTIES:
Annealed hardness 41-47HBC
DELIVERY CONDITION : annealed
DIMENSION : mm
|
ROUND STEEL BAR |
COIL ROD |
WIRE |
SQUARE/ FLAT |
|
FORGED BAR |
ROLLED BAR |
HOT ROLLED |
COLD DRAW |
FORGED |
ROLLED |
|
100-700 |
16-250 |
∮5.5-20 |
∮0.2-13 |
120-800×120-800 |
5-38×44-150 10-90×60-305 |
APPLIED RANGE:
Favourable machinability and abrasion resistance hardness distribution uniform, have well polishing perfromance ,processing technic simple .
Large-scale long life plastic injection mould , such as dies for household appliances products , computer shell ect. High surface smoothness mould .
3Cr2Mo
Plastic mould steel , its comprehensive performance better ,hardenability high. Hardness uniform and hve better polishing performance . Mould
surface have highly polished .
Deliver status : annealed , hardness ≤201HB; quenched and tempered hardness ≥50HV
Usage
Suitable for make large , medium-sized and precise plastic mould . As well as low melting point die-casting mould such Stannum ,zinc and plubum alloy.
|
C |
Si |
Mn |
P≤ |
S≤ |
Cr |
Mo |
|
0.28/0.40 |
0.20/0.80 |
0.60/1.00 |
0.03 |
0.03 |
1.40/2.00 |
0.30/0.55 |
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.
