Standard-probe measured curve
Describes the medium response for the stated probe and test conditions. It is not the surface or core curve of a production workpiece.
Measured Jominy HardenabilityCurve Analyzer
Enter measured “distance from quenched end–HRC” data from an end-quench specimen to analyze the 50% martensite hardness crossing and interpolate at a specified distance. The page does not generate a curve from a steel grade.
Test object
Measured distance–hardness data from a standard Jominy end-quench specimen
Analysis
Linear interpolation, critical-HRC crossing, and non-monotonic anomaly warnings
Explicitly excluded
No fabricated curve from steel grade and no unsupported mapping to hardness across a complex workpiece section
Measured Data and Criterion
wt%
HRC
--
HRCMeasured Jominy Points
| # | Distance from Quenched End, mm | Hardness HRC | Remove |
|---|
Paste Two-Column Data
Comma, space, tab, or semicolon delimiters are accepted; importing replaces the current table.
Waiting for measured data. Enter at least three valid measured points to begin analysis.
Curve and Analysis Results
Enter at least three valid measured points
to plot the measured curve
to plot the measured curve
Measured-point line
Analysis criterion
Critical Hardness
--
HRC
50% M Crossing Distance
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mm
mm
Available after a valid curve is entered; no extrapolation beyond the measured range.
Valid Points
0
Measured Distance Range
--
Abnormal Rises
--
No crossing result yet. Enter a measured curve.
Measured-curve analysis · no material data generated
Test basis: ASTM A255 and ISO 642 specify the Jominy end-quench test method; this page only analyzes hardness data entered by the user.
50% M criterion: Carbon-content mode calculates only within 0.10–0.70% C; manual mode is for a critical HRC confirmed by metallography, a standard, or a company specification.
Interpolation limit: Linear interpolation is performed only between adjacent measured points; the last point is not extended outward.
Data classification
Three data types must remain separate
Every curve and conclusion on this site is identified by how the data was obtained.
Software-predicted curve
Calculated from a stated model and inputs. It is a prediction, not measured production data.
Real-workpiece internal measured curve
Comes from internal points in the actual workpiece and is used to assess the real cooling process against post-quench hardness, microstructure and properties.
Unless explicitly identified and validated, one data type cannot be converted into or substituted for another.Read the technical method
Continue with your application
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