BÖHLER W300 ISOBLOC

BÖHLER W300 ISOBLOC is a 5% chromium steel and corresponds to material number 1.2343 (X37CrMoV5-1). Produced via the electroslag remelting process (ESR), this tool steel has very high hot toughness as well as good hot hardness and very good resistance against heat-checkings. The combination of these properties makes it a top performer in high- and low-pressure die casting as well as in closed-die and open-die forging. 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: good
  • Machinability: very high
  • Hot Hardness (red hardness): good
  • Polishability: very high
  • Thermal conductivity: high
  • Micro-cleanliness: high

Technical Specifications

Material Numbers

SEL
1.2343
EN
X37CrMoV5-1
UNS
T20811
AISI
H11
NADCA
D1830
JIS
SKD6

Standards

EN ISO
4957
NADCA
#207
JIS
G4404

Chemical Composition

* Chemical Composition (Average %)

C
0.38
Si
0.90
Mn
0.40
Cr
5.20
Mo
1.30
V
0.45

Applications

Downloads