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1.6580 (30CrNiMo8)

1.6580 (30CrNiMo8) directly from stock & cut to your required dimensions!

International term:

AISI 4340
AFNOR: 30CND8

Application field:

1.6580 is an alloyed constructional steel, which is used for high requirements in toughness, strength and through hardenability.
(mechanical engineering , automotive engineering)

Characteristics:

quenched and tempered

Weldability:   bad

Machinability:   
4 (1 = very bad - 10 = good)

Chemical composition:

1.6580
30CrNiMo8
CSiMnPSCrMoNiV
min. 0,26   0,3     1,8 0,3 1,8    
max. 0,34 0,4 0,6 0,035 0,04 2,2 0,5 2,2    
The chemical composition please take out of the print version.

From stock:

Flat, forged, quenched and tempered
Flat, rolled, quenched and tempered

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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.