Machining DataSheet for

General Information:
Material GroupM - Stainless Steel
Sub-GroupPH Stainless Steel
Tensile Strength500-730 [N/mm^2]
Machinability36%

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Equivalent International Designations for Material 321

Standard Name
sae321
wnr1.4541
dinX10CrNiTi18-9
unsUNS S32100
bs321S12, 58B
ss2337
anforZ6CNT18.10
uniX6CrNiTi18 11
unfF.3553;F.3523
js1SUS321

Chemical Composition for Material 321

Element Amount
Chromium (Cr)18%
Nickel (Ni)9.5%
Manganese (Mn)2.00%
Silicon (Si)1.00%
Titanium (Ti)0.40%
Carbon (C)0.08%
Phosphorus (P)0.04%
Sulfur (S)0.03%

Cutting Speeds Recomendations for Material 321

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

ApplicationVc (m/min)Vc (SFM)
Turning135-180440-590
Milling85-115280-380
Parting55-70180-230
Grooving80-110260-360
Drilling40-50130-160

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 321

* 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 321

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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