1.4313 (ASTM A182 F6NM - UNS S41500) Material Data Sheet

1.4313 - F6NM - UNS S41500 is a corrosion and acid resistant, soft martensitic chromium-nickel steel with added molybdenum.

The high toughness properties provide 1.4313 with excellent capabilities and increasing popularity. Valves, compressors, and centrifuges are typically made of this stainless steel.

Steel 1.4313 - also known as F6NM - is primarily used in the oil industry and in components for power plants and reactor technology.

This stainless-steel grade is also used for the manufacture of turbines for hydroelectric power plants.
 

The material 1.4313 is available in QT650, QT780 and QT900:

Mechanical properties at room temperature: QT650

Mechanical properties at room temperature: QT780

Mechanical properties at room temperature: QT900

1.4313 Material data sheet
 

The stainless steel 1.4313 features excellent mechanical properties. The addition of molybdenum provides medium corrosion resistance, which can be improved by polishing the surfaces.

Weldability:      poor

Machinability:   5 (1 = poor - 10 = good)

Polishability:    yes

Corrosion class:   2 (0 = poor - 5 = good)

In the tempered condition, 1.4313 has a tensile strength of 650 - 1100 N/mm². The toughness properties exist from -60°C to +300°C. 1.4313 can be magnetised.
 

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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.