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Metalworking Tools
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Steel Boring Bars

Steel Boring Bars

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Workpiece Material

P P Steel (1025)
- P0 P0
  Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
  (1024)
- P1 P1
  Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
  (1024)
- P2 P2
  Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS
  (1024)
- P3 P3
  Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS
  (1024)
- P4 P4
  Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS
  (1024)
- P5 P5
  Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS
  (1025)
- P6 P6
  High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS
  (1025)
M M Stainless Steel (1025)
- M1 M1
  Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS
  (1025)
- M2 M2
  High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS
  (1025)
- M3 M3
  Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS
  (1025)
K K Cast Iron (1020)
- K1 K1
  Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS
  (1020)
- K2 K2
  Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS
  (1020)
- K3 K3
  High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS
  (1018)
N N Non-Ferrous Materials (959)
- N1 N1
  Wrought Aluminum
  (948)
- N2 N2
  Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%
  (947)
- N3 N3
  High-Silicon Aluminum Alloys Si >12.2%
  (772)
- N4 N4
  Copper, Brass, Zinc-based on machinability index range of 70-100
  (958)
- N5 N5
  Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass
  (947)
- N6 N6
  Carbon, Graphite Composites, CFRP
  (863)
- N7 N7
  MMC's
  (947)
S S High-Temp Alloys (1039)
- S1 S1
  Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS
  (1039)
- S2 S2
  Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS
  (1039)
- S3 S3
  Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS
  (1039)
- S4 S4
  Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS
  (1024)
H H Hardened Materials (853)
- H1 H1
  Hardened Materials 44-48 HRC
  (853)
- H2 H2
  Hardened Materials 48-55 HRC
  (853)
- H3 H3
  Hardened Materials 56-60 HRC
  (853)
- H4 H4
  Hardened Materials >60 HRC
  (746)