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Steel Boring Bars

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Workpiece Material
  • P Steel (826)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (825)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (825)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS
      (825)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS
      (825)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS
      (825)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS
      (826)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS
      (826)
  • M Stainless Steel (826)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS
      (826)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS
      (826)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS
      (826)
  • K Cast Iron (827)
    • K1
      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS
      (827)
    • K2
      Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS
      (827)
    • K3
      High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS
      (827)
  • N Non-Ferrous Materials (791)
    • N1
      Wrought Aluminum
      (787)
    • N2
      Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%
      (786)
    • N3
      High-Silicon Aluminum Alloys Si >12.2%
      (659)
    • N4
      Copper, Brass, Zinc-based on machinability index range of 70-100
      (790)
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      (786)
    • N6
      Carbon, Graphite Composites, CFRP
      (728)
    • N7
      MMC's
      (786)
  • S High-Temp Alloys (834)
    • S1
      Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS
      (834)
    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS
      (834)
    • S3
      Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS
      (834)
    • S4
      Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS
      (825)
  • H Hardened Materials (714)
    • H1
      Hardened Materials 44-48 HRC
      (714)
    • H2
      Hardened Materials 48-55 HRC
      (714)
    • H3
      Hardened Materials 56-60 HRC
      (714)
    • H4
      Hardened Materials >60 HRC
      (641)
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  • KM (205)
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Minimum Axial Groove Diameter Min to Minimum Axial Groove Diameter Max
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
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Rake Angle Style
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Maximum Bore Depth Min to Maximum Bore Depth Max