PROPRIETARY Exera 20AP free-cutting Structural and constructional steels
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This material has 53 properties — only a subset is shown here.
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PROPRIETARY Exera 20AP free-cutting Chemical Composition
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PROPRIETARY Exera 20AP free-cutting Physical Properties
Temperature
This material has 53 properties — only a subset is shown here.
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PROPRIETARY Exera 20AP free-cutting Heat Treatments
- Soft-annealing: Heat at 650-680°C for 1h.
Hardening: d ≤ 5 mm: Heat at 800-820°C for 3-6 min, quench in oil at 50°C.
d > 5 mm: Heat at 790-810°C, for 6-10 min, quench in water.
The smaller the diameter, the shorter the soaking time. To avoid oxidation and decarburization, hardening should be conducted in a protective gas atmosphere using nitrogen, argon or a vacuum.
Tempering: Heat at 100-600°C for 30-60 min. The core of the material needs a tempering time of at least 30 minutes. To reduce the risk of cracking, tempering should be conducted immediately after hardening. The heating rate should not be too high, particularly in the case of intricately shaped components.
PROPRIETARY Exera 20AP free-cutting Mechanical Properties
Temperature
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PROPRIETARY Exera 20AP free-cutting International Equivalent Materials
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Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.
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- 2Cross References
- 6Composition
- 27Mechanical Properties
- 14Physical Properties
- 1Heat Treatment
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