Convert between °C, °F, K and °R. Used for heat-treat schedules, preheat temperatures and tempering data quoted in the other scale.
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Request a Proposal →Temperature affects every aspect of machining -- from part dimensions (thermal expansion) to cutting tool life (heat at the cutting edge). Converting between temperature scales is essential when working across international specifications.
20 degrees C (68 degrees F) per ISO 1. All engineering drawings and CMM measurements reference this temperature. A 100 mm steel part measured at 25 degrees C reads 0.006 mm larger than at 20 degrees C due to thermal expansion.
Carbide begins to soften above 500 degrees C. The cobalt binder in tungsten carbide loses hardness above this temperature. Coatings like AlTiN form a protective aluminium-oxide layer at high temperatures, extending tool life significantly beyond uncoated carbide.
Most tool steels require 200-400 degrees C (400-750 degrees F) preheat before welding to prevent cracking. The exact temperature depends on carbon content and alloy. Post-weld heat treatment (tempering at 500-650 degrees C) restores toughness.
Enter a temperature in Celsius or Fahrenheit. The converter shows all four scales. Use this for heat treatment specifications, thermal expansion compensation, and converting between shop floor temperature readings in different countries.
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Use the calculator freely. If the result points to a tooling or process problem, we can source the exact carbide tooling you need from vetted factories in China. Compare factory-direct pricing.
Before you commit to a spec, it helps to know what the market pays for it. These are real, publicly listed factory prices — not a quotation, and not a guess.
We source the tool families below direct from vetted Chinese factories, matched to the material and tolerance you just worked out. Every batch ships with its material certificate and dimensional record.
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CONVERTING TEMPERATURES? Coating and heat treatment both live and die by a few tens of degrees. See what we verify in a coating and heat-treat line.
We source carbide cutting tools from China for job shops. We do not own a factory, which is why we can quote your drawing against two or three plants that actually run your material.
Cutting formulas with the units worked through · Speed and feed starting points for all six ISO material groups · How to read a carbide grade past its ISO code. 12 pages.
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