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DIN 1.7102

Alloyed quenched and tempered steel

DIN 1.7102 is an alloyed quenched and tempered steel containing chromium and manganese. It is used where a combination of strength, toughness and good machinability is required. Due to its balanced composition, it is suitable for the production of shafts, gears and other medium-strength machine parts that require good mechanical properties and wear resistance.


Alternative designation : 54SiCr6, ČSN 14260

Type : Alloy quenching and tempering steel (for hardening and tempering)

Heat treatment:

  • Quenching : 820–860 °C (oil)

  • Tempering : 540–680 °C (depending on the required strength and toughness)

Tempering : combination of hardening and tempering to achieve optimum strength

Rolled, annealed sheets

3

4

5

6

12













































Features:

  • Good strength and toughness after tempering

  • Hardness after hardening and tempering approx. 28–34 HRC (depending on condition)

  • Good machinability in the annealed condition

  • Possibility of surface cementation to increase wear resistance

  • Suitable for moderately stressed parts

Use:

  • Shafts, pins, gears

  • Medium-duty fasteners and machine components

  • Fixtures and structural parts requiring toughness

  • Parts of machines operating under normal conditions

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