Sumitomo AC810P: the maker lists AC8015P as its successor
Sumitomo Electric puts Sumitomo AC8015P against AC810P 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
AC810P → AC8015P · P / steel turning (CVD)
The table has a "Grade" column and an "Old Grades" column. AC8015P is in the Grade column; AC810P 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)
AC8015P A 91.0 2.3 ABSOTECH 14 · Crystal orientation control technology is used to drastically suppress the advancement AC810P
What this does and does not mean
It means the maker positions AC8015P as the newer grade for the work AC810P was used for. It does not say AC810P is discontinued, and it does not say every insert shape and chipbreaker you buy in AC810P exists in AC8015P.
Before you switch:
- Check that your exact insert designation and chipbreaker are offered in AC8015P in the maker's current catalogue.
- Start from the maker's recommended cutting speed for AC8015P, not the numbers you ran with AC810P.
- 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. The maker also lists AC8115P against AC8015P, so AC8015P is not the newest step in this line.
Other Sumitomo successor pairs
AC230 → ACP100 · AC304 → AC630M · AC405K → AC4010K · AC420K → AC4125K · AC610M → AC6020M · AC700G → AC420K · AC8015P → AC8115P · 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.