🌡

Thermal Calculations

Heat-up rate, soak time, thermal mass, furnace power requirements

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Case Depth

Carburising depth prediction, nitriding case, Harris equation

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Quenching

Quench severity (H factor), cooling rate, Grossman factor

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Gas & Atmosphere

Carbon potential, gas flow, endogas composition, dew point

Electrical

Element sizing, power calculation, electrical load balancing

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Vacuum

Leak rate, pump-down curve, outgassing estimate

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Fabrication

Pipe sizing, thermal expansion, vessel pressure rating

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Conversion

Unit converter, hardness conversion, temperature scales

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PID / Control

Ziegler-Nichols, Cohen-Coon, IMC tuning methods

Most-Used Calculators

  • Soak Time Calculator
    AMS 2750 / CQI-9 minimum hold times
  • Heat-Up Rate Calculator
    Time to temperature, ramp rate
  • Carbon Potential Calculator
    Boudouard equilibrium, dew point conversion
  • Case Depth Predictor
    Harris equation, carburising diffusion model
  • Hardness Conversion
    HRC ↔ HV ↔ HB ↔ tensile strength
  • Quench Severity Calculator
    H factor, cooling rate, Jominy correlation
  • Leak Rate Calculator
    Vacuum system pressure rise to µm/hr
  • PID Tuning Calculator
    Step response, ultimate gain, IMC methods

Platform Highlights

29
Engineering Calculators
3/day
Free Tier Runs
Unlimited
Pro Tier Runs
1,000+
Spare Parts Indexed

Professional Heat Treatment Calculators for Industry

Heat treatment engineers routinely need to calculate soak times, ramp rates, case depths, and process parameters for each job. Doing this manually with reference tables is slow and error-prone. Our calculator suite automates these calculations using the same equations used in industry standards — AMS 2750, CQI-9, EN 10052, and Harris & Fry's carburising equations.

All 29 calculators are accessible on any device. Results can be exported to PDF for inclusion in route cards, heat treatment certificates, and customer documentation. Used daily by engineers at Howmet Aerospace, Hoganas, Safran, and independent heat treatment shops across the UK and Europe.

29 Calculators — Free to Start

3 free calculator runs per day on a registered account. Upgrade to Pro for unlimited access and PDF export.

Create Free Account → Pro from £49/month — no credit card for free tier

Specific tools: Furnace Load · Carbon Potential · Hardness Conversion · PID Tuning · Full Platform