PREMIUM 1.6587 Steel
18CrNiMo7-6

AISI / SAE 4820

PREMIUM 1.6587 Steel
18CrNiMo7-6

18CrNiMo7-6

1.6587  - AT A GLANCE

What kind of steel is the 1.6587?

The 1.6587 is a CrNiMo-alloyed case-hardening steel which is used for highly stressed parts which need a high core strength and toughness. The 1.6587 an be surface hardened as well as core hardened. With surface hardening a case hardness off approx. 58 – 60 HRC can be reached.

Properties

Case-hardening steel 1.6587, an alloyed CrNiMo alloyed steel can be used for extremely high stressed parts.

  • Case-hardening steel
  • Engineering steel
  • Core- and surface hardenable
  • Nitridable
  • Good machinability
  • Good toughness
  • Good core strength
  • Hard to weld
  • Can be carburised

Applications

The steel grade 1.6587 can be used for highly stressed gear parts.

  • Bevel gears
  • Driving pinions
  • Gears
  • Shafts
  • Crankshafts
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Standard values

Chemical designation: 18CrNiMo7-6
Surface hardenss according to case hardness: approx. 58-60 HRC
Delivery condition: maximum 229 HB
Chemical composition:
C Si Mn P S Cr Mo Ni
0,15

0,21
0

0,4
0,5

0,9
0

0,025
0

0,035
1,5

1,8
0,25

0,35
1,4

1,7
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Technical properties

CrNiMo alloyed case-hardening steel for highly stressed components with high core strength and toughness. This steel is used for gear parts such as ring gears or drive pinions and gear wheels. The AISI / SAE 4820 is usually difficult to weld.

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Applications

Shafts, gear parts, gears, bevel gears, driving pinion.

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