T15K6
GOST T15K6 (Т15К6) · GB YT15 · ISO P10
Т15К6 is the classic GOST WC–TiC–Co steel-cutting grade with about 15% TiC and 6% cobalt, equivalent to YT15.
Reference datasheet — T15K6 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the SINT condition
T15K6 tempers and conditions
T15K6 is supplied in 2 conditions, soft to hard. SINT is the default FabDigit quotes; the values on this page are for it.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SINTDefault Sintered | Use the as-sintered and ground uncoated blank to GOST 3882 for turning tools, boring bars and brazed tips in semi-finish to finish machining of steel. | — | 800 | 0.1 | 1,560 HV | 27 W/m·K |
Hot isostatic pressed | Pick the sinter-HIP densified version when higher transverse rupture strength and batch consistency are required for interrupted cutting or large-section tool bars. | — | 900 | 0.15 | 1,580 HV | 28 W/m·K |
Supply forms, finishes and certifications
Ways T15K6 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
CVD | TiN/TiCN/Al₂O₃ coated insert substrate | Coating |
What is T15K6?
Т15К6 is the classic GOST WC–TiC–Co steel-cutting grade with about 15% TiC and 6% cobalt, equivalent to YT15. The high TiC content gives hot hardness and crater-wear resistance for finishing and semi-finishing turning of steel, and it is supplied as brazed tips, blanks and pressed inserts in sintered, HIP and CVD-coated conditions. Thermal conductivity is 27 W/m·K and service temperature reaches about 850 °C, but the low binder content makes it more chip-sensitive than Т5К10 under interrupted cuts, and it is unsuitable for cast iron or non-ferrous work. T15K6 has a density of 11.4 g/cm³ (0.412 lb/in³), heavier than 81% of ceramic grades. It melts at 1,350°C (2,462 °F). T15K6 has a tensile strength of 800 MPa (116 ksi), stronger than 79% of ceramic grades. Elongation at break is 0.1% and the elastic modulus is 520 GPa (75.4 Msi).
What is T15K6 used for?
- Steel finishing and semi-finishing turning inserts
- General lathe tooling for carbon and alloy steel
- Brazed-tip boring tools
- Threading and grooving tool tips
- Face and shoulder milling inserts for light cuts
- Form tools for steel components
Advantages
- Tough — resists crack growth — 9.5 MPa·√m (8.65 ksi·√in), better than 84% of ceramic grades
- Stiff — 520 GPa (75.4 Msi), better than 81% of ceramic grades
Limitations
- Heavy — 11.4 g/cm³ (0.412 lb/in³), worse than 81% of ceramic grades
- Needs corrosion protection — 55/100, worse than 77% of ceramic grades
T15K6 properties
Typical room-temperature values for T15K6-SINT; bars are the position among ceramic grades.
Physical3
T15K6 has a density of 11.4 g/cm³ (0.412 lb/in³), heavier than 81% of ceramic grades. It melts at 1,350°C (2,462 °F).
Mechanical13
T15K6 has a tensile strength of 800 MPa (116 ksi), stronger than 79% of ceramic grades. Elongation at break is 0.1% and the elastic modulus is 520 GPa (75.4 Msi).
Thermal5
T15K6 is rated for continuous service to 850°C (1,562 °F). It conducts heat at 27 W/m·K (15.6 BTU/hr·ft·°F), better than 56% of ceramic grades. Thermal expansion is 6.3 µm/m·K (3.5 µin/in·°F).
Electrical1
T15K6 has an electrical resistivity of 6×10⁻⁷ Ω·m.
Chemical & Environmental2
Corrosion resistance is good (55/100), worse than 77% of ceramic grades.
Sustainability4
Producing a kilogram of T15K6 takes about 280 MJ of energy and emits 20 kg of CO₂ — more than 71% of ceramic grades. Typical recycled content is 30%.
Manufacturability3
T15K6's machinability is not recommended (4/100, worse than 85% of ceramic grades).
Common Calculations4
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the ceramic family
Yield strength against density for every ceramic grade FabDigit runs. T15K6 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with T15K6
Is T15K6 easy to machine?
Once sintered it can only be worked by diamond wheel grinding, EDM or laser machining; green blanks can be pre-formed with carbide or HSS tooling before final sintering.
Can T15K6 be welded?
Not fusion weldable; braze onto steel shanks with copper- or silver-based fillers (BAg series) by vacuum or induction brazing and cool slowly to prevent thermal cracking.
Can T15K6 be formed, bent or molded?
Powder pressing (die, isostatic or extrusion) followed by liquid-phase sintering at 1420–1540 °C; shrinkage is about 18–22%, so tooling must be oversized accordingly.
T15K6 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| TiCtitanium carbide as (Ti,W)C with some WC in solid solution | 14 – 16 | 15 |
| Cocobalt binder phase | 5.5 – 6.5 | 6 |
| WCbalance, tungsten carbide | balance | — |
What surface finishes work on T15K6?
Diamond grinding plus lapping and polishing produces mirror cutting edges; CVD/PVD coatings or edge honing extend tool life.
Equivalent designations
Standards and trade names that resolve to T15K6 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ISO
- P10
- GB (China)
- YT15
- GOST
- Т15К6
How much does T15K6 cost?
T15K6 is a high-cost ceramic ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
T15K6 — frequently asked
What is T15K6 used for?
T15K6 is typically used for steel finishing and semi-finishing turning inserts, general lathe tooling for carbon and alloy steel, brazed-tip boring tools, threading and grooving tool tips, face and shoulder milling inserts for light cuts and form tools for steel components. In short: standard steel-finishing carbide; high TiC crater resistance; harder than Т5К10.
What is the tensile strength of T15K6?
T15K6 has a typical tensile strength of 800 MPa (116 ksi) — stronger than 79% of ceramic grades. Strength varies by condition: see the 2 listed tempers.
Is T15K6 easy to machine?
Not especially — machinability is rated not recommended (4/100, worse than 85% of ceramic grades). Once sintered it can only be worked by diamond wheel grinding, EDM or laser machining; green blanks can be pre-formed with carbide or HSS tooling before final sintering.
Can T15K6 be welded?
Not fusion weldable; braze onto steel shanks with copper- or silver-based fillers (BAg series) by vacuum or induction brazing and cool slowly to prevent thermal cracking.
What surface finishes work on T15K6?
Diamond grinding plus lapping and polishing produces mirror cutting edges; CVD/PVD coatings or edge honing extend tool life.
Can T15K6 be formed, bent or molded?
Powder pressing (die, isostatic or extrusion) followed by liquid-phase sintering at 1420–1540 °C; shrinkage is about 18–22%, so tooling must be oversized accordingly.
What is the maximum service temperature of T15K6?
T15K6 is rated for continuous use to about 850°C (1,562 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does T15K6 cost?
T15K6 is a high-cost ceramic ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ГОСТ 3882-74 Сплавы твердые спеченные. Марки — Госстандарт (1974)
- ASM Handbook Vol. 2 — Properties of Cemented Carbides — ASM International (1990)
- ISO 513 — Classification of hard cutting materials (P/M/K groups) — ISO (2012)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.