BÖHLER W302 ISOBLOC
BÖHLER W302 ISOBLOC is a 5% chromium steel and corresponds to material number 1.2344 (X40CrMoV5-1). Produced via the electroslag remelting process (ESR), this tool steel has very high hot toughness as well as very high hot hardness and a very good resistance against heat-checkings. The combination of these properties makes it a top performer in closed- and open-die forging as well as in high- and low-pressure die casting. In addition, this material has very good polishability and is therefore also often used as a molding material for plastic injection molds.
Available Product Shapes
Long Products: Presented data refer exclusivly to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
Melting Route
Airmelted + Remelted
Property Features
- Toughness & Ductility: high
- Wear Resistance: high
- English (United Kingdom): very high
- Hot Hardness (red hardness): high
- Polishability: very high
- Thermal conductivity: good
- Micro-cleanliness: high
Material Numbers
- SEL
- 1.2344
- EN
- X40CrMoV5-1
- UNS
- T20813
- AISI
- H13
- NADCA
- B1885
- JIS
- SKD61
Standards
- EN ISO
- 4957
- NADCA
- #207
- JIS
- G4404
Chemical Composition
* Chemical Composition (Average %)
- C
- 0.39
- Si
- 0.90
- Mn
- 0.40
- Cr
- 5.20
- Mo
- 1.40
- V
- 0.95