Measured standard-probe cooling curves
Describes the medium response for the stated probe and test conditions. It is not the surface or core curve of a production workpiece.
Understand the workpiece requirements, then select the product
These tools help organise hardenability, target size and cooling conditions. You can request quenchants or test equipment at any time without completing every calculation.
Six tools, organized around your question
| Your question | Tool | Output |
|---|---|---|
| What is the material’s hardenability potential? | Ideal critical diameter DI | Composition-based estimate within the model’s scope |
| How do I interpret H and organise the conditions? | Grossmann H value and report | H input, curve conditions and analysis report |
| Is a round-bar size suitable for the given DI and H? | Critical diameter of a round bar | Model critical diameter compared with target size |
| How can I interpret existing Jominy data? | Measured Jominy Hardenability Analysis | Measured-point plot, interpolation and criterion crossing |
| Do candidate H ranges meet the target? | Media H-Range Screening | Candidate ranges compared against one criterion |
| Need composition indices for welding assessment? | Carbon equivalent CE | CE(IIW), Pcm and CET formula results |
Ideal Critical Diameter (DI)
Calculate DI for non-boron steel from eight elements and austenite grain size using the Grossmann multiplying-factor relationship; calculation stops outside the published composition range.
Open DI Calculator
Grossmann H Value
Enter a measured or workpiece-calibrated H value and review the historical Grossmann 1942 oil and water ranges, with H units and model limits stated.
Open H-Value Guide
Critical diameter of a round bar
Combine DI and H to solve the critical diameter for 50% martensite at the center of an infinitely long round bar, check a target diameter, and back-calculate the minimum H.
Open Round-Bar Calculator
Measured Jominy Curve Analysis
Enter measured end-quench distance–HRC data to analyze the 50% martensite crossing, in-range interpolation, and abnormal rises; no curve is fabricated from a steel grade.
Open Measured-Curve Analyzer
Quenchant H-Range Screening
Back-calculate the minimum H from DI and target round-bar diameter, then transparently check candidate measured or calibrated ranges without unsupported best-media ranking.
Open H-Range Screener
Carbon Equivalent (CE)
Assess weld-cracking risk with three industry formulas—CE(IIW), Pcm (Ito-Bessyo), and CET (ThyssenKrupp)—plus an interactive risk gauge and preheat guidance.
Open Carbon-Equivalent Calculator
TECHNICAL RESOURCES
From calculation results to products, measured data, standards and articles
A calculator supports initial screening. The next step is to connect the result to an Anran quenchant, a cooling curve with stated conditions, the governing material standard and the relevant technical article.
01 / PRODUCT-LED H
H value and Anran quenchants
Review the AR-HCCI, AR-SAG and AR-UHS application boundaries before entering a measured or calibrated H value.
Open H-value product selection 02 / MEASURED CURVESMeasured high-chromium cast-iron comparison
Select air cooling and three bath temperatures individually or together, with the chart and table synchronized.
View the AR-HCCI core data 03 / MATERIAL STANDARDSMaterials standards library
Focused on material specifications, property tests, metallography, chemical analysis and inspection of castings and forgings.
Search material standards 04 / TECHNICAL BLOGHeat-treatment technical blog
Original articles on quenchants, CCT curves, cracking and distortion, recovered and reorganized for the current site.
Read technical articlesConnect a calculation with your practical requirement
Start with AR-HCCI for high-chromium cast iron, AR-SAG for large Cr–Mo steel SAG liners, AR-UHS for intensified cooling and AR-GP for conventional production.
Choose SYQ-2 to test medium performance. For cooling inside heavy workpieces, discuss internal temperature measurement.
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.
Measured internal workpiece cooling curves
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
Explore other products as needed
Every product can be quoted and purchased separately. Choose complementary products only when needed.