How to understand and make the most out of our Grade Tables

  • We use the PMK convention that is used in most of the cutting tool catalogs. (Example P05-15, K25-40, etc.). If you are not familiar with it please read our Detailed Explanation
  • We divide the grades into several "Grade Statuses":
    • Active Main Grades - Are the primary grades of each brand.
    • Active complimentary Grades - These are additional possibilities either older or used for specific situations.
    • You can use the filter above the table to view both or one of them.
    • In addition, we list on the bottom of the page additional older and non-active grades.

Sumitomo Turning Grades Chart

MaterialGradeCoatinggrade_statusApp Range051015202530354045
P - SteelAC8015P (AC810P)CVDMain GradesP05 - P15PPP
P - SteelAC1030UPVDMain GradesP10 - P30PPPPP
P - SteelAC8020PCVDMain GradesP10 - P25PPPP
P - SteelAC530UPVDAdditional GradesP10 - P30PPPPP
P - SteelAC8025P (AC820P)CVDMain GradesP15 - P30PPPP
P - SteelAC530UPVDAdditional GradesP20 - P40PPPPP
P - SteelAC8035P (AC830P)CVDMain GradesP25 - P45PPPPP
M - Stainless SteelAC6020M (AC610M)CVDMain GradesM05 - M25MMMMM
M - Stainless SteelAC6030M (AC630M)CVDMain GradesM10 - M35MMMMMM
M - Stainless SteelAC1030UPVDMain GradesM20 - M40MMMMM
M - Stainless SteelAC6040MPVDMain GradesM25 - M45MMMMM
K - Cast IronAC4010K (AC405K)CVDMain GradesK05 - K15KKK
K - Cast IronAC4015KCVDMain GradesK10 - K25KKKK
K - Cast IronAC1030UPVDMain GradesK10 - K30KKKKK
K - Cast IronAC530UPVDAdditional GradesK10 - K30KKKKK
K - Cast IronAC420KCVDMain GradesK15 - K30KKKK
N - Non-FerrousH1UncoatedMain GradesN10 - N30NNNNN
S - SuperalloysAC5015SPVDMain GradesS05 - S15SSS
S - SuperalloysAC5005S (AC510U)PVDMain GradesS05 - S10SS
S - SuperalloysAC5025S (AC520U)PVDMain GradesS10 - S30SSSSS

Sumitomo Milling (Indexable) Grades Chart

MaterialGradeCoatinggrade_statusApp Range051015202530354045
P - SteelXCU2500CVDMain GradesP05 - P30PPPPPP
P - SteelACP2000CVDMain GradesP05 - P25PPPPP
P - SteelACP100CVDAdditional GradesP05 - P20PPPP
P - SteelACU2500PVDMain GradesP10 - P40PPPPPPP
P - SteelACP200PVDAdditional GradesP10 - P30PPPPP
P - SteelACP3000PVDMain GradesP20 - P45PPPPPP
M - Stainless SteelXCU2500CVDMain GradesM05 - M20MMMM
M - Stainless SteelACM100PVDMain GradesM05 - M15MMM
M - Stainless SteelACU2500PVDMain GradesM10 - M30MMMMM
M - Stainless SteelACM200CVDMain GradesM10 - M25MMMM
M - Stainless SteelACM300PVDMain GradesM20 - M40MMMMM
K - Cast IronXCK2000CVDMain GradesK05 - K20KKKK
K - Cast IronXCU2500CVDMain GradesK10 - K25KKKK
K - Cast IronACU2500PVDMain GradesK10 - K35KKKKKK
K - Cast IronACK2000 (ACK200)CVDMain GradesK10 - K25KKKK
K - Cast IronACK3000 (ACK300)PVDMain GradesK15 - K30KKKK
N - Non-FerrousDL2000DLCMain GradesN05 - N30NNNNNN
N - Non-FerrousDL1000DLCMain GradesN05 - N25NNNNN
N - Non-FerrousH1UncoatedMain GradesN15 - N30NNNN
N - Non-FerrousH20UncoatedMain GradesN20 - N35NNNN
S - SuperalloysACU2500PVDMain GradesS05 - S25SSSSS
S - SuperalloysACM100PVDAdditional GradesS05 - S10SS
S - SuperalloysACM200CVDMain GradesS10 - S30SSSSS
S - SuperalloysACM300PVDMain GradesS20 - S40SSSSS

Sumitomo Parting Off Grades Chart

MaterialGradeCoatinggrade_statusApp Range051015202530354045
P - SteelAC1030U (AC530U)PVDMain GradesP10 - P25PPPP
P - SteelAC520UPVDMain GradesP15 - P30PPPP
P - SteelAC830PCVDMain GradesP20 - P40PPPPP
M - Stainless SteelAC1030U (AC530U)PVDMain GradesM10 - M25MMMM
M - Stainless SteelAC520UPVDMain GradesM15 - M30MMMM
M - Stainless SteelAC830PCVDMain GradesM20 - M40MMMMM
K - Cast IronAC425KCVDMain GradesK10 - K25KKKK
K - Cast IronAC520UPVDMain GradesK15 - K30KKKK
K - Cast IronAC1030U (AC530U)PVDMain GradesK20 - K40KKKKK
S - SuperalloysAC520UPVDMain GradesS10 - S25SSSS
S - SuperalloysAC1030U (AC530U)PVDMain GradesS20 - S40SSSSS

Sumitomo Grooving Grades Chart

MaterialGradeCoatinggrade_statusApp Range051015202530354045
P - SteelAC1030U (AC530U)PVDMain GradesP10 - P25PPPP
P - SteelAC520UPVDMain GradesP15 - P30PPPP
P - SteelAC830PCVDMain GradesP20 - P40PPPPP
M - Stainless SteelAC1030U (AC530U)PVDMain GradesM10 - M25MMMM
M - Stainless SteelAC520UPVDMain GradesM15 - M30MMMM
M - Stainless SteelAC830PCVDMain GradesM20 - M40MMMMM
K - Cast IronAC425KCVDMain GradesK10 - K25KKKK
K - Cast IronAC520UPVDMain GradesK15 - K30KKKK
K - Cast IronAC1030U (AC530U)PVDMain GradesK20 - K40KKKKK
S - SuperalloysAC520UPVDMain GradesS10 - S25SSSS
S - SuperalloysAC1030U (AC530U)PVDMain GradesS20 - S40SSSSS

Sumitomo Older Non-Active Grades

A list of additional older grades that are no longer in the Catalog, or had been replaced with moden generation grades.

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