Why one grade name does not give one temperature
Heat chemistry, effective section, heated condition and cooling affect as-quenched structure and hardness. Mill tempering-response curves also carry material and treatment conditions. Similar international grades are not automatically identical.
Tempering also involves holding time, number of cycles and cooling. Some alloy systems show secondary hardening, so hardness does not necessarily decrease monotonically with increasing tempering temperature for every material.
Prepare these details before setting the next process
| Information | Why it matters |
|---|---|
| Grade and heat chemistry | Identify the applicable material and process guidance |
| Heating and holding records before quenching | Establish material condition and treatment history |
| Dimensions and actual cooling history | Identify heavy sections and differences between locations |
| As-quenched hardness distribution and microstructure | Confirm the starting condition, not just one surface value |
| Drawing and service-property requirements | Establish final acceptance targets |
With these records, the user’s process specialists set tempering according to material guidance, product specifications and validation results.
Anran focuses on getting quench cooling right
AR-HCCI coordinates high- and low-temperature cooling of high-chromium cast iron. AR-SAG and suitable operating conditions address heavy Cr–Mo steel liner sections. SYQ-2 assesses the medium; internal measurement records actual cooling for comparison with post-quench inspection.
Our focus remains quench cooling and the as-quenched condition, providing workpiece evidence for the user’s subsequent tempering process. Quenchants, testers and internal measurement products are independently available; one integrated package is not required.
If the current problem is in quenching
If the core is soft, hardness varies by location or you need better coordination of specialised quenchant and cooling, tell Anran the workpiece and symptoms. Share test results if available; uploading complete data is not required to make contact.