Sumitomo AC8015P: the maker lists AC8115P as its successor
Sumitomo Electric puts Sumitomo AC8115P against AC8015P in its own catalogue material. We publish the pair only because the maker printed it; the source and page are below.
What the maker's document shows
AC8015P → AC8115P · P / steel turning (CVD)
The table has a "Grade" column and an "Old Grades" column. AC8115P is in the Grade column; AC8015P is in its Old Grades column.
Source: Sumitomo Electric, General catalogue 2025–2026, coated carbide grade table, printed page A27 (PDF page 27). Open the maker's PDF at that page →
Text line as extracted from the PDF (table columns run together)
AC8115P 91.4 2.3 ABSOTECH 20 technology greatly reduces the progress of crater damage. AC8015P
What this does and does not mean
It means the maker positions AC8115P as the newer grade for the work AC8015P was used for. It does not say AC8015P is discontinued, and it does not say every insert shape and chipbreaker you buy in AC8015P exists in AC8115P.
Before you switch:
- Check that your exact insert designation and chipbreaker are offered in AC8115P in the maker's current catalogue.
- Start from the maker's recommended cutting speed for AC8115P, not the numbers you ran with AC8015P.
- Run both grades until the edge is worn out on the same part and compare parts per edge. One part is not a result.
Grade lineage in the same document
AC810P → AC8015P → AC8115P. AC8015P itself is listed as the newer grade for AC810P.
Other Sumitomo successor pairs
AC230 → ACP100 · AC304 → AC630M · AC405K → AC4010K · AC420K → AC4125K · AC610M → AC6020M · AC700G → AC420K · AC810P → AC8015P · AC830P → AC8035P · ACP100 → ACP2000
Tell the advisor your insert, material and operation. It answers brand-neutral, including options from other makers. To check a whole tool list for older grades, use the free coverage check.