Heat Grade FinderEnter a heat analysis to see which steel grades it meets, nearly meets, or misses.
Heat analysis
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For grades not in this list, substitution questions, or what a buyer will accept. Uses your Claude account.
Requirements
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Measured Jominy from cert (optional)
Hardenability
Calculated curve as a table
Stock heats against these requirements
Calculated with the Grossmann method in ASTM A255: ideal diameter DI from chemistry (grain size 7 assumed, no boron factor), initial hardness from carbon, then division factors by distance. Treat it as a screen with about ±3 HRC uncertainty; the measured end-quench result on the cert decides acceptance.
My stock
Add heats from the Match tab with "Save this heat to my stock".
Grade library
Limits are heat (ladle) analysis in wt %. Where a standard varies limits by thickness, the bracket used is noted on the grade. Check the current edition of the standard before you certify against it.
Add a buyer's spec
Enter the min / max from an enquiry or purchase order. It is matched like any other grade, under the family "Custom". Specs you save stay in this browser only.
CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15. Pcm = C + Si/30 + (Mn+Cu+Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B.