BS 823 M 30
PREMIUM 1.6580
AISI / SAE 4340



Technical datasheet (PDF) Technical datasheet
500 mm 1,000 mm
Steel Guide Information in the STEEL GUIDE
Alternatives in the STEEL GUIDE
Standard values to PREMIUM 1.4034 Standard values
Chemical designation: 30CrNiMo8
Working hardness: max. 41 HRC
hardness (deliv. cond.): max. 380 HB

Chemical composition

C Si Mn P S Cr Mo Ni
0,26 0 0,3 0 0 1,8 0,3 1,8
- - - - - - - -
0,34 0,4 0,6 0,025 0,035 2,2 0,5 2,2
Technical properties Technical properties
CrNiMo alloyed heat-treatable steel (tempered condition) for components with high strength and toughness. It is used for through-hardening components in automotive and mechanical Engineering. The material is usually difficult to weld. Components are usually used in the quenched and tempered state. An optionally achievable surface hardness through nitriding: approx. 60-64HRC.
Applications Applications
The Corrosion Resistant Steel BS 823 M 30 is suitable for the following applications: Shafts, gear parts, gears, bevel gears, driving pinion.

The Heat-Treatable Steel BS 823 M 30 is available as Round steel.

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