Machining DataSheet for

General Information:
Material GroupM - Stainless Steel
Sub-GroupPH Stainless Steel
Tensile Strength<1400 [N/mm^2]
Machinability47%

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Machining Material 15-5PH

15-5PH is a martensitic chromium-nickel stainless steel containing precipitation-hardening elements such as copper, niobium, and tantalum.

Its cracks resistance, corrosion resistance, and strength are better than the regular martensitic chromium-type stainless steel (400 series).

It is used in applications requiring high strength and a modest level of corrosion resistance. For example pump shafts, oil & gas components, and mechanical seals.

The machinability of 15-5PH depends on its hardness. In 'condition A' (the most commonly supplied) it has a machinability rating of 45% (Similar to 420), however, in many cases, it is machined after heat treatment, and the machinability becomes much lower.

Hardness (HB)Hardness (HRC)Machinability (%)
250 (Condition A)2445%
3003239%
3503832%

Summery:

  • For detailed carbide grades recommendations, check the Below Chart, or use the Grades Wizrad.
  • Recommended Cutting speed range for turning at stable conditions is 570 - 770 [SFM] / 175 - 235 [m/min].
  • Recommended Cutting speed range for milling with stable clamping and short overhang is 360 - 490 [SFM] / 110 - 150 [m/min]
  • For detailed cutting speed recomendations, check the Below Table, or use our Speed and Feed Calculator.

    • Equivalent International Designations for Material 15-5PH

    Standard Name
    sae15-5
    wnr1.4540
    dinX4CrNiCuNb16.4
    unsUNS S15500
    anforZ6CNU15.05

    Chemical Composition for Material 15-5PH

    Element Amount
    Chromium (Cr)14.8%
    Nickel (Ni)4.5%
    Copper (Cu)3.5%
    Silicon (Si)0.50%
    Manganese (Mn)0.50%
    Carbon (C)0.03%
    Phosphorus (P)0.02%
    Sulfur (S)0.02%

    Cutting Speeds Recomendations for Material 15-5PH

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

    ApplicationVc (m/min)Vc (SFM)
    Turning175-235570-770
    Milling110-150360-490
    Parting70-95230-310
    Grooving105-140340-460
    Drilling50-70160-230

    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 15-5PH

    * 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 15-5PH

    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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