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Evaluation of Special Quality Die Steels NADCA Project Die Materials Specifications Task Group

Evaluation of Special Quality Die Steels NADCA Project Die Materials Specifications Task Group Wheeling, IL - February 2009. STEELS. BohlerUddeholm Dievar Thyssen E38K Thyssen 2367 Ellwood ExELL Tuf-Die SAMPLES 4- Thermal fatigue samples quenched in oil, triple tempered to

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Evaluation of Special Quality Die Steels NADCA Project Die Materials Specifications Task Group

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  1. Evaluation of Special Quality Die Steels NADCA Project Die Materials Specifications Task Group Wheeling, IL - February 2009

  2. STEELS BohlerUddeholm Dievar Thyssen E38K Thyssen 2367 Ellwood ExELL Tuf-Die SAMPLES 4- Thermal fatigue samples quenched in oil, triple tempered to 44-46HRC 10- Charpy V-notch, heat treated in oil and triple tempered to 44-46HRC.  4- Thermal fatigue samples quenched in a vacuum furnace and triple tempered to 44-46HRC (welded to a 16” block).  10- Charpy V-notch quenched in oil and triple tempered to 44- 46HRC (cut from plate that was welded to a 16” block).

  3. Flow Chart for Die Steel Evaluation Receive steel block – mark grain orientation Cut blanks for Thermal Fatigue and Charpy V-notch Rough machine CVN “potential” Rough machine Thermal Fatigue and CVN plate Oil quench CVN “potential” Vacuum quench Thermal Fatigue and CVN plate Finish/ Grind Thermal Fatigue and Charpy V-notch Test Thermal Fatigue and Charpy V-notch Impact Report Thermal Fatigue and CVN Results

  4. Cutting line Charpy impact specimens are taken from the “red” bar as shown in page 2. 8’’ 7’’ 2.215’’ 2.125’’ 2.125’’ 2.125’’ 8’’ 2.3’’ 2.125’’ 2.125’’ Length direction Thickness direction * taken from a 12" thick x 10" wide slab

  5. 2367 and E38K

  6. CAPABILITY HEAT TREATMENT NADCA GRADE ID SUPPLIER AUSTENITIZING TEMPERx3 TYPE

  7. CAPABILITY HEAT TREATMENT (Oil Quench)

  8. VACUUM HEAT TREATMENT

  9. Average Maximum Crack Length Superior Steels (Oil quench)

  10. Total Crack Area Superior Steels (Oil Quench)

  11. Average Maximum Crack Length Superior Steels (Vacuum Quench)

  12. Total Crack Area Superior Steels (Vacuum Quench)

  13. SET-UP for Vacuum Heat Treatment of the Special Steels

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