Difference between Annealing & Tempering

Difference between Annealing & Tempering is as per below.

Annealing	Tempering
Annealing is a primary process.	Tempering is a secondary process. Usually done after hardening process.
Material is heated above re-crystallization temperature.	Material is heated below re-crystallization temperature.
Cooling process of material is take place inside the furnace.	Cooling process of material is take place outside the furnace.

Please let me know if there is a any query or want to add points.

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Difference Between : IC and EC Engine

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Comparison between : Otto & Diesel Cycle

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Difference Between : EN8 & MS Material

What is the difference between EN8 and MS material? Answer : EN 8 Material MS Material EN 8 material has higher tensile strength. MS material has comparatively low tensile strength. EN 8 material applicable when high strength required. MS material is applicable when high strength not required. EN 8 material contain 0.4% C MS material contain up to 0.25% C EN 8 material is use when other heat treatment process is carried out on it. MS material is use when no need of other heat treatment process on it. EN 8 material can use instead of MS material. MS material can not use instead of EN 8 material. Material is more expensive then MS. Material is less expensive then EN 8. Let me know if there is a addition of point or correction in any point.

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