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1.7707 (30CrMoV9)

1.7707 (30CrMoV9) directly from stock & cut to your required dimensions!

International term:

AISI 4340

Application field:

1.7707 ( nitriding steel ) is used for units in mechanical engineering and automotive engineering

1.8519 is directly comparable to 1.7707


quenched and tempered

Weldability: bad

Chemical composition:

min. 0,27   0,4     2,3 0,15     0,1
max. 0,34 0,4 0,7 0,035 0,04 2,7 0,25   0,6  0,2
The chemical composition please take out of the print version.

From stock:

Flat, forged, quenched and tempered 


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.