1.2379 steel is a high carbon – high chromium air hardening cold work tool steel, heat treatable to 60-62 HRC. 1.2379 offers excellent wear and abrasion resistance, due to large volumes of carbides in the micro-structure.
Applications
X155CRVMO12 Tool Steel is used in the making of knife-edge mold, scissors, circular saw blades, metal stamping mold. Used to make cold work or hot work dressing dies, sides of rollers, screw lines, lines dies, transformer core stamping dies, rolled knives, steel tube forming rollers, special molding rollers, screw heading molds, etc. Also used for blanking dies, stamping dies and pressing dies with a thickness ≤ 6mm. It can also be found in the production of various kinds of scissors, inlaid blades and thread rolling dies. It is also used to make wear-resistant slider cold heading dies, deep drawing molding dies, cold extrusion dies and in the making of thermosetting resin molding dies and common plastic dies.
Chemical composition of X155CrVMo12 steel
| C(％) | 1.40～1.60 | Si(％) | ≤0.40 | Mn(％) | ≤0.60 |
| P(％) | ≤0.030 | S(％) | ≤0.030 | Cr(％) | 11.0～13.0 |
| Mo(％) | 0.80～1.20 | V(％) | 0.20～0.50 | Ni(％) | <0.50 |
DIN 1.2739 Mechanical Properties
DIN 1.2739 Tool Steel Mechanical Properties as below table:
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Hardness, Knoop (converted from Rockwell C hardness) | 769 | 769 |
| Hardness, Rockwell C | 62 | 62 |
| Hardness, Vickers | 748 | 748 |
| Izod impact unnotched | 77.0 J | 56.8 ft-lb |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
Partial part type display:
