Machining DataSheet for

General Information:
Material GroupM - Stainless Steel
Sub-GroupDuplex Stainless Steel
Tensile Strength1000 [N/mm^2]
Machinability28%

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Equivalent International Designations for Material Duplex 1803 (F51)

Standard Name
saeASTM A182 Grade F51
unsUNS S31803

Chemical Composition for Material Duplex 1803 (F51)

Element Amount
Iron (Fe)68.9%
Chromium (Cr)22%
Nickel (Ni)5.8%
Molybdenum (Mo)3.3%

Cutting Speeds Recomendations for Material Duplex 1803 (F51)

* Click on the speeds below for higher precision in specific conditions!

ApplicationVc (m/min)Vc (SFM)
Turning105-140340-460
Milling65-90210-300
Parting40-55130-180
Grooving60-85200-280
Drilling30-40100-130

Important! The speed estimation is given for an ideal situation:

  • Most suitable carbide grade
  • Stable tool clamping
  • Stable workpiece clamping
  • Good quality raw material
  • A short overhang of the cutting tool.
  • Nominal hardness of the material.
  • etc.
Click on the speeds in the above table to get better precision for specific parameters
Or use our Speed and Feed Calculator


Recommended Carbide Grades for Material Duplex 1803 (F51)

* If you do nott understand the below table? Read This Explanation to make the most out of it!

Grade for Turning

Grade for Parting Off

Grade for Grooving

Grade for Milling (Indexable)

Recommended Insert Cutting Edge Geometry for Material Duplex 1803 (F51)

Honing Size:0.03-0.05 mm / 0.001-0.002"
Rake Angle:9° -11°
Land Angle:Positive
Land Width:0.20-0.30 mm / 0.008-0.012"

Learn more about carbide inserts Cutting-Edge Geometry Parameters.

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