TaeguTec TT8125B carbide grade — ISO 513 groups, coating and cross references
Grade identification
| Manufacturer | TaeguTec |
|---|---|
| Grade designation | TT8125B |
| Catalogue description | TT8125B / CVD, steel P20 general |
| ISO 513 workpiece group | P |
| Coating family | CVD |
| Substrate | tough substrate |
| Source | TaeguTec — Turning insert selection guide (grade application ranges) · accessed 2026-09-28 |
Source: TaeguTec official catalogue, accessed 2026-09-28. Grade behaviour statements on this page are general ISO 513 engineering guidance, not manufacturer cutting data.
ISO 513 fit
TaeguTec TT8125B is filed under ISO 513 group P. Check the manufacturer's application band for the exact position within the group. See the group pages under ISO 513 material groups for what each letter means in practice.
Offered on these inserts
Cross-brand grade equivalents
Equivalents are listed only when they can be traced to a published cross-reference chart or confirmed in both manufacturers' official catalogues. Unconfirmed chart rows are marked VERIFY; nothing on InsertBase is guessed.
| Equivalent grade | Brand | Match | ISO 513 | Coating | Basis / note | Source |
|---|---|---|---|---|---|---|
| 4325 | Sandvik Coromant | PARTIAL | K / P | CVD | CVD steel P20 general; same ISO P and CVD family. | TaeguTec — Grade Comparison Table (turning grades across 12 manufacturers) (2026-09-28) |
Match levels: FULL = same ISO group, application band and coating family · PARTIAL = same band, different coating or edge prep · VERIFY = quoted in aftermarket charts, unconfirmed by both catalogues.