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1.6565 (40NiCrMo6)

1.6565 (40NiCrMo6) directly from stock & cut to your required dimensions!

International term:

AISI 4340

Application field:

Material 1.6565 is used for highly stressed components in mechanical engineering, vehicle construction as well as aerospace industry.


1.6565 - only limited welding is possible

machinability: 5 (1 = low - 10 = good)

Chemical composition:

min. 0,35 0,15 0,5     0,9 0,2 1,4    
max. 0,45 0,35 0,7 0,035 0,035 1,04 0,3 1,7  
The chemical composition please take out of the print version.

From stock:

Flat, forged, annealed


Benefit of sawn cuts:

The processing with the saw is a mechanical processing of the material, which results in a significantly lower unintended deformation and increased hardness for the existing structure, such as the thermal cutting.

Thus, the machined workpiece has a homogeneous structure even at the edge, which does not change in the continuation of the material.

This circumstance allows immediate finishing of the workpiece with milling or drilling . So it is not necessary to anneal the material or make a similar operation beforehand.