fracture toughness
fracture toughness
(OP)
Hello, I am interesting in the fracture toughness characteristics for the steel with DIN 17007 designation 1.7147 or with DIN 17006 designation 20MnCr5
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RE: fracture toughness
These values are identified as "after case hardening, in core". Clearly, the values of your actual material may be somewhat affected by the processing route.
If you need K1C/K1J values, I suggest you test some actual material (best), or ask your supplier for values.