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.
Screen cooling conditions, then select products
This tool calculates required H from DI and target bar diameter, then compares candidate ranges. It tests a model criterion—not a ranking of quenchant quality.
DI + Target Round-Bar Diameter → Required H → Candidate-Range Screening
Criterion
Critical diameter for 50% martensite at the center of an infinitely long round bar
Result states
Fully meets, conditional, insufficient, or no finite solution
Data responsibility
A specific product requires its measured or calibrated H range and operating conditions
Target Inputs
mm
DI must come from measured-data conversion or a composition calculation within its validity range.
Current: page example
mm
The model object is an infinitely long round bar; wall thickness, plates, rings, and complex sections cannot be used directly as diameter.
Valid input. Back-calculating the minimum H.
H-Range Screening Results
Theoretical Minimum H
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Target Diameter / DI
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Model Limit
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Waiting for calculation. Check DI and the target diameter.
Candidate H Ranges
| Candidate Condition / Medium | H Lower in⁻¹ | H Upper in⁻¹ | Value Basis | Assessment | Predicted Dc Range | Remove |
|---|
The historical oil and water ranges come from Grossmann 1942 Table 17 and are only sensitivity references. A custom row should contain a measured or workpiece-calibrated range for the same medium, concentration, temperature, relative motion, and load condition. Assessment uses minimum H as the conservative boundary and maximum H as the upper boundary.
Range screening · not a comprehensive media ranking
Inverse calculation: Solve the minimum finite H from DI and target round-bar diameter using the Grossmann 50% martensite center criterion.
Range assessment: H lower bound meets = fully meets; only H upper bound meets = conditional; H upper bound is still too low = insufficient.
No unsupported inference: The page does not fabricate H values, distortion risk, or pros-and-cons rankings for Anran products, polymer concentrations, brine, or a specific tank.
How to use the tool and get product support
Enter the target and candidate ranges
Enter DI and target diameter. For each candidate, enter the medium or condition name and H limits, with concentration, bath temperature and relative motion conditions.
Known H ranges or those calibrated against workpiece results are more useful than a product name without conditions. Historical ranges are for preliminary comparison, not measured AR product specifications.
Understanding the screening status
- Entire range meets target: the lower limit satisfies the model criterion.
- Conditional: only higher H values in the range meet the target; confirm actual conditions.
- Insufficient: even the upper limit does not meet the target.
- No finite solution: no finite H meets the target under the current inputs and model constraints.
These statuses do not comprehensively assess cracking, distortion or local shielding.
Where Anran products fit
Discuss AR-HCCI for high-chromium cast iron, AR-SAG for large Cr–Mo steel liners, AR-UHS for high cooling intensity and AR-GP for routine production. Confirm material and application before comparing curves and conditions; add medium or internal temperature testing if needed.
No H value? You do not need to remain in the calculator. Describe your workpiece and problem to request selection advice and a quote.
Reference H ranges are not fixed specifications of specialised products. Each product has its own application and performance description and can be quoted separately. Agree operating guidance with Anran’s technical team.
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.