T15K6 SINT
Print state · default condition
GOST T15K6 (Т15К6) · GB YT15 · ISO P10
SINT = 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.
Values for the SINT condition
Other T15K6 tempers and conditions
T15K6 is listed in 2 conditions; see the grade overview at T15K6.
- SINT
- HIP
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SINTDefaultThis page 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 |
What is T15K6 SINT?
T15K6 SINT is T15K6 in the SINT condition — 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. T15K6 SINT 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). T15K6 SINT 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).
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 SINT properties
Typical room-temperature values for T15K6 SINT; 13 are specific to this condition. Other listed values are T15K6 reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical3
T15K6 SINT 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 SINT 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 SINT 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 SINT 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 SINT 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 SINT's machinability is not recommended (4/100, worse than 85% of ceramic grades).
Common Calculations4
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with T15K6 SINT
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.
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.
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 | — |
T15K6 SINT — frequently asked
What is T15K6 SINT used for?
T15K6 SINT 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 SINT?
T15K6 SINT 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 SINT 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 SINT 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 SINT?
Diamond grinding plus lapping and polishing produces mirror cutting edges; CVD/PVD coatings or edge honing extend tool life.
Can T15K6 SINT 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 SINT?
T15K6 SINT 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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.