UNI 55 Cr 3 Structural and constructional steels
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This material has 305 properties — only a subset is shown here.
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UNI 55 Cr 3 Chemical Composition
UNI 3545: 1980 / Hot rolled special alloyed steel finished products, bars and wire rod, for quenched and tempered springs. Qualities, requirements and tests
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UNI 55 Cr 3 Physical Properties
Temperature
This material has 305 properties — only a subset is shown here.
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UNI 55 Cr 3 Heat Treatments
- Hardening temperature for end quenched test: 850 +/-5°C
- This material is normally supplied in the annealed or normalized condition. The following temperatures are given in the specification as guidelines. Anneal at 640 to 700°C. Normalize at 860°C and air cool. Except for the Brinell hardness values, the values shown in the mechanical properties table apply to longitudinal testing of 10mm diameter test pieces subjected to the following quench and temper reference heat treatment (Q + T): Harden by oil quenching from 850°C +/- 10°C, after holding at temperature for a minimum of 1/2 hour, and temper at 480°C +/- 20°C for a minimum of 1 hour. The final heat treatment of springs may be carried out as follows (these are guideline temperatures only): Harden by oil quenching from 830 to 860°C. Temper at 400 to 450°C.
UNI 55 Cr 3 Mechanical Properties
Temperature
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UNI 55 Cr 3 International Equivalent Materials
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- 147Cross References
- 12Composition
- 13Mechanical Properties
- 3Physical Properties
- 6Heat Treatment
- 5Metallography
- -Machinability
- -Stress-Strain
- -Formability
- 2Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- 6Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 111Total Suppliers