
Cold work tool steels are normally used at room temperatures featuring good wear resistance,toughness and dimentional stability. Since they operate at room temperatures high temperature resistance is not required.We normally classify cold work steels into 3 catagories:
(a)High Carbon High chromium steels,
(b)Oil hardening steels,
(c)Air hardening steels.
The most important properties looked into Cold work tool steel dies are:
(1)Wear resistance of die.
(2)Resistance to Chipping off,
(3)Resistance to cracking.
To achieve wear resistance Higher hardness is recommended.For better impact strength steels with better toughness are suggested.Toughness normally depands on the Hardness level and the Microstructure of the steel like Carbide distribution,grain size,inclusion ratings etc.
Cold Work Tool Steel Chart
| MATERIAL | CHEMISTRY | APPLICATION | |||||||||||
| AISI/ASTM | EN | DIN | JIS | C | Si | Mn | P | S | Cr | W | Mo | V | |
D3 |
X210Cr12 |
1.2080 |
SKD1
|
2 |
0.25 |
0.45 |
0.03 |
0.01 |
12 |
Drawing dies, blanking dies. |
|||
| D2 |
X155CrVMoV12.1 |
1.2379 |
1.55 |
0.25 |
0.35 |
0.03 |
0.01 |
12 |
0.9 |
0.9 |
Cold work dies for roll forming, blanking, punches, etc. |
||
O1 |
100MnCrW4 |
1.2510 |
SKS3
|
0.95 |
0.25 |
1.1 |
0.03 |
0.01 |
0.6 |
0.6 |
0.1 |
For deep drawing gauges. |
|
S1 |
60WCrV7 |
1.2550 |
0.6 |
0.6 |
0.3 |
0.06 |
0.01 |
1.1 |
2 |
0.2 |
Shear blades, cutting tools for heavy plates, etc |
||
D2 |
X165CrMov12 |
1.2601 |
SKD11
|
1.65 |
0.25 |
0.45 |
0.03 |
0.01 |
12 |
1 |
0.3 |
Cold work tools for rolls, blanking tools, punches. |
|
O2 |
90MnCrV8 |
1.2842 |
0.9 |
0.25 |
2 |
0.03 |
0.01 |
0.4 |
0.1 |
Tools,gauges and measuring instruments. |
|||
A2 |
100CrMoV5-1 |
1.2363 |
SKD12 |
1 |
0.25 |
0.03 |
0.01 |
5 |
1 |
Blanking dies, rolls, stamping dies etc. |
|||
Hitachi HMD5 |
1.2 |
0.2 |
Dies for deep drawing. |
||||||||||
| MATERIAL | HEAT TREATMENT DETAILS | ||||||||||||||||||
| AISI/ASTM | EN | DIN | JIS | Annealing (Slow Cooling) |
Quenchent(Hot Bath) | Quenching | Tempering(Air Cooling) | Annealed (hb)-max |
Quenched &(hrc) Tempered | ||||||||||
D3 |
X210Cr12 |
1.2080 |
SKD1
|
830-880 |
OIL/AIR |
930-980 |
150-200 |
248 |
61 |
||||||||||
| D2 |
X155CrVMoV12.1 |
1.2379 |
800-850 |
AIR/OIL |
980-1030 |
150-200 |
248 |
60 |
|||||||||||
O1 |
100MnCrW4 |
1.2510 |
SKS3
|
750-780 |
OIL |
800-850 |
150-200 |
220 |
60 |
||||||||||
S1 |
60WCrV7 |
1.2550 |
710-750 |
OIL |
780-820 |
150-200 |
225 |
58 |
|||||||||||
D2 |
X165CrMov12 |
1.2601 |
SKD11 |
830-880 |
AIR/OIL |
980-1050 |
150-200 |
248 |
58 |
||||||||||
O2 |
90MnCrV8 |
1.2842 |
680-720 |
OIL |
790-820 |
150-200 |
220 |
56 |
|||||||||||
A2 |
100CrMoV5-1 |
1.2363 |
SKD12 |
800-850 |
AIR/OIL |
910-980 |
150-200 |
248 |
61 |
||||||||||
Hitachi
HMD5 |
825-875 |
Flame Hardening |
930-1100 |
235 |
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Designed @ Kreativeedge
Designed @ Kreativeedge







