YT15
ISO P10
YT15 is a classic WC-15%TiC-Co cemented carbide for steel cutting, where the titanium carbide addition raises hot hardness and resistance to crater wear compared with straight WC-Co.
Reference datasheet — YT15 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
YT15 tempers and conditions
YT15 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 vacuum-sintered blank or insert as the first choice for general finish turning of steel parts at moderate cost. | 800 | 0.1 | 1,780 HV | 21 W/m·K | |
Hot isostatic pressed | Choose sinter-HIP consolidation to remove residual porosity for higher transverse rupture strength and edge reliability in precision inserts and light interrupted cutting. | 950 | 0.1 | 1,800 HV | 22 W/m·K |
What is YT15?
YT15 is a classic WC-15%TiC-Co cemented carbide for steel cutting, where the titanium carbide addition raises hot hardness and resistance to crater wear compared with straight WC-Co. Engineers use it for semi-finishing to finishing of carbon and alloy steels at high cutting speed, supplied as pressed-and-sintered inserts, brazed tool tips and blanks in SINT, HIP and coated conditions. Density is 11.4 g/cm3, thermal conductivity 21 W/m·K, and it holds hardness to about 900 °C. The TiC content lowers toughness and heat flow, so it suits continuous cuts rather than interrupted work or cast iron; the universal YW1 grade is the usual alternative for mixed materials. YT15 has a density of 11.4 g/cm³ (0.412 lb/in³), heavier than 81% of ceramic grades. It melts at 1,320°C (2,408 °F). YT15 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 YT15 used for?
- steel finishing/semi-finishing
- high-speed turning of steel
- general lathe tooling
Advantages
- Stiff — 520 GPa (75.4 Msi), better than 81% of ceramic grades
- Tough — resists crack growth — 8.5 MPa·√m (7.74 ksi·√in), better than 79% of ceramic grades
Limitations
- High embodied carbon — 30 kg CO₂/kg, worse than 91% of ceramic grades
- Needs corrosion protection — 45/100, worse than 90% of ceramic grades
- Heavy — 11.4 g/cm³ (0.412 lb/in³), worse than 81% of ceramic grades
YT15 properties
Typical room-temperature values for YT15-SINT; bars are the position among ceramic grades.
Physical3
YT15 has a density of 11.4 g/cm³ (0.412 lb/in³), heavier than 81% of ceramic grades. It melts at 1,320°C (2,408 °F).
Mechanical13
YT15 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
YT15 is rated for continuous service to 900°C (1,652 °F). It conducts heat at 21 W/m·K (12.1 BTU/hr·ft·°F), worse than 52% of ceramic grades. Thermal expansion is 6.5 µm/m·K (3.61 µin/in·°F).
Electrical2
YT15 has an electrical resistivity of 4.5×10⁻⁷ Ω·m.
Chemical & Environmental2
Corrosion resistance is fair (45/100), worse than 90% of ceramic grades.
Sustainability4
Producing a kilogram of YT15 takes about 400 MJ of energy and emits 30 kg of CO₂ — more than 88% of ceramic grades. Typical recycled content is 25%.
Manufacturability3
YT15'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. YT15 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with YT15
Is YT15 easy to machine?
After sintering the material can only be shaped by diamond-wheel grinding, EDM or laser; pre-form geometry with carbide or HSS tools while the part is still in the green state.
Can YT15 be welded?
Not fusion weldable. Tips are brazed to steel shanks with silver-based filler (BAg-Cu-Zn) at 700-900 °C in vacuum or by torch, with slow cooling to avoid braze and carbide cracking.
Can YT15 be formed, bent or molded?
Formed by powder pressing (die pressing, isostatic pressing or extrusion) followed by vacuum liquid-phase sintering at 1400-1500 °C; allow for roughly 17-20 % linear shrinkage in the tooling.
YT15 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; raises red hardness and crater wear resistance | 14 – 16 | 15 |
| Cocobalt binder phase | 5.5 – 6.5 | 6 |
| WCtungsten carbide base, about 79% | balance |
What surface finishes work on YT15?
Diamond lapping and polishing reach Ra below 0.1 µm. CVD or PVD coatings can be applied, but the surface must be grit blasted and acid-treated to remove surface cobalt first.
Equivalent designations
Standards and trade names that resolve to YT15 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ISO
- P10
How much does YT15 cost?
YT15 is a high-cost ceramic ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
YT15 — frequently asked
What is YT15 used for?
YT15 is typically used for steel finishing/semi-finishing, high-speed turning of steel and general lathe tooling. In short: classic steel-turning carbide; high hot hardness, moderate toughness; not for cast iron.
What is the tensile strength of YT15?
YT15 has a typical tensile strength of 800 MPa (116 ksi) — stronger than 79% of ceramic grades. Strength varies by condition: see the 2 listed tempers.
Is YT15 easy to machine?
Not especially — machinability is rated not recommended (4/100, worse than 85% of ceramic grades). After sintering the material can only be shaped by diamond-wheel grinding, EDM or laser; pre-form geometry with carbide or HSS tools while the part is still in the green state.
Can YT15 be welded?
Not fusion weldable. Tips are brazed to steel shanks with silver-based filler (BAg-Cu-Zn) at 700-900 °C in vacuum or by torch, with slow cooling to avoid braze and carbide cracking.
What surface finishes work on YT15?
Diamond lapping and polishing reach Ra below 0.1 µm. CVD or PVD coatings can be applied, but the surface must be grit blasted and acid-treated to remove surface cobalt first.
Can YT15 be formed, bent or molded?
Formed by powder pressing (die pressing, isostatic pressing or extrusion) followed by vacuum liquid-phase sintering at 1400-1500 °C; allow for roughly 17-20 % linear shrinkage in the tooling.
What is the maximum service temperature of YT15?
YT15 is rated for continuous use to about 900°C (1,652 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does YT15 cost?
YT15 is a high-cost ceramic ($$$$), 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
- ASM Handbook Vol.2 — Cemented Carbides — ASM International (1990)
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.