What is the typical heat treatment cycle for H13 material?
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For H13 material, the heat treatment cycle usually lasts two to five days. The process type, workpiece size, batch size, and production schedule of the service provider all affect how long it takes. The most time-consuming stage is the quenching and tempering procedure (quenching + tempering).
1. Average Cycle Times for Various Procedures
Type of Process
Range of Cycle Time
An explanation
Temperature Treatment (Tempering + Quenching)
Two to three days
comprises tempering, cooling, heating, holding, and oil cooling. Longer temperature homogenization times are needed for larger workpieces.
Nitriding
3–5 days
To avoid deformation, gas nitriding necessitates extensive holding times (40–60 hours) and gradual heating.
Treatment using Vacuum Heat
3–4 days
Longer vacuuming, temperature control, chilling, and more precise procedures, but less deformation.
Tempering for Stress Reduction
1-2 days
Shorter cycle times and lower temperatures (500–600°C) are frequently employed as pre-processing steps.
Case Study: Using a tempering + nitriding composite method, a Wuhan-based company submitted an H13 hot runner nozzle for inspection. Including testing and report issuance, the entire cycle time was four days.
2. Important Elements Influencing Cycle Time
Workpiece Size and Thickness: To maintain a consistent temperature and prevent "incomplete core penetration," thick and large pieces need to be held for a longer period of time.
Batch Size: While big batches require furnace loading, which could take one to two days, small batches can be treated quickly in succession with shorter cycles.
Production Capacity of Service Provider: Transportation and processing from other areas prolong the cycle; local specialized manufacturers, like Wuhan Heat Treatment Plant, react more quickly.
Expedited Service: Some organizations provide expedited delivery within 24 to 48 hours, however the price goes up by 30 to 50%.
Waiting times can be reduced by selecting a service provider with multi-furnace coordinating capability.
3. Useful Advice for Reducing Cycle Time
Make a reservation in advance to prevent waiting by scheduling furnace loading with nearby service providers (like Wuhan Heat Treatment Plant or Jingmo Technology).
Centralized Processing: To cut down on batch processing time, combine several workpieces into the furnace.
Select Local Services: By achieving "same-day delivery and next-day furnace loading," local Wuhan businesses can increase productivity.
The safety principle states that "the cycle can be compressed, but the process cannot be omitted." Make sure you give each procedure enough time to prevent uneven hardness or rushing-related cracking.
