Product Description

The BÖHLER K340 ECOSTAR is a conventionally melted, oil- and air-hardened 8% chromium steel with improved matrix structure and with good dimensional stability. This results in material properties that are particularly well suited to working with combined loading.

Property Features

The outstanding performance characteristics and material properties of BÖHLER K340 ECOSTAR improve the cost-effectiveness of their tools.

Advantages in tool-making

  • Good EDM machinabilty
  • Good dimensional stability
  • Good machinabilty
  • Excellent nitridability
  • Excellent coatability

Advantages in tool use

  • Excellent adhesive wear resistance
  • High compressive strength
  • Easy to regrind
  • High cutting edge retention
  • Consistently high component precision
  • Safety against breakage or failure in use
  • Reproducible tool Parameters

Technical Specifications

Compressive strength Stability heat Toughness Wear resistance abrasive Wear resistance adhesive

Chemical Composition

1.10 0.70 0.40 8.20 2.10 0.50

Chemical composition (average %)

Available product shapes

  • 6-Side Machining
  • Flat Bar
  • Ground Flat
  • Long Products
  • Plates
  • Ready Pieces
  • Round Bar
  • Round Ground Bar
  • Standard Bar

Fairs & Events


Send us a message

Contact BÖHLER USA about anything related to our products and services and we will get back to you.


BÖHLER Worldwide

Please choose your market and find your local contact.


Please use a browser that is not outdated.

You are using an outdated web browser.

Errors may occur when using the website.