YG6X
ISO K05
YG6X is the fine-grain version of YG6 — WC–6% Co with VC/TaC grain-growth inhibitors — at 14.9 g/cm³, 630 GPa elastic modulus and 79 W/m·K thermal conductivity, supplied fine-grain, sinter-HIP, ultrafine and PVD-coated.
Reference datasheet — YG6X 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 FG condition
YG6X tempers and conditions
YG6X is supplied in 3 conditions, soft to hard. FG is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Sinter-HIP consolidated | Choose when maximum transverse rupture strength and freedom from A/B-type porosity are needed, e.g. thin cutting edges, punches and micro-drill blanks. | 1,500 | 0 | 1,780 HV | 80 W/m·K | |
FGDefault Fine grain (0.8–1.2 µm WC), vacuum sintered | Standard commercial YG6X: general finishing tooling and wear parts where edge sharpness matters more than impact toughness. | 1,750 HV | 79 W/m·K | |||
Ultrafine / submicron grain | Pick for micro-tools, PCB drills and razor-sharp finishing edges needing the highest hardness at 6% Co; least tolerant of impact. | 1,950 HV | 70 W/m·K |
Supply forms, finishes and certifications
Ways YG6X is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
PVD | TiAlN/AlTiN PVD-coated YG6X substrate | Coating |
What is YG6X?
YG6X is the fine-grain version of YG6 — WC–6% Co with VC/TaC grain-growth inhibitors — at 14.9 g/cm³, 630 GPa elastic modulus and 79 W/m·K thermal conductivity, supplied fine-grain, sinter-HIP, ultrafine and PVD-coated. The refined grain raises wear resistance and edge sharpness for finish machining of cast iron, reamers, small-diameter drills and precision cutting edges. It is rated to about 800 °C, above coarse-grain YG6, but toughness is below YG8, and sintered parts can only be diamond ground or EDM'd. YG6 remains the tougher, lower-cost choice for general work. YG6X has a density of 14.9 g/cm³ (0.538 lb/in³), heavier than 96% of ceramic grades. The elastic modulus is 630 GPa (91.4 Msi).
What is YG6X used for?
- finish machining cast iron
- reamers
- small-diameter drills
- precision cutting edges
Advantages
- Stiff — 630 GPa (91.4 Msi), better than 95% of ceramic grades
- Tough — resists crack growth — 8.5 MPa·√m (7.74 ksi·√in), better than 79% of ceramic grades
- Conducts heat well — 79 W/m·K (45.6 BTU/hr·ft·°F), better than 75% of ceramic grades
Limitations
- Heavy — 14.9 g/cm³ (0.538 lb/in³), worse than 96% of ceramic grades
- Needs corrosion protection — 55/100, worse than 77% of ceramic grades
YG6X properties
Typical room-temperature values for YG6X-FG; bars are the position among ceramic grades.
Physical2
YG6X has a density of 14.9 g/cm³ (0.538 lb/in³), heavier than 96% of ceramic grades.
Mechanical9
The elastic modulus is 630 GPa (91.4 Msi).
Thermal5
YG6X is rated for continuous service to 800°C (1,472 °F). It conducts heat at 79 W/m·K (45.6 BTU/hr·ft·°F), better than 75% of ceramic grades. Thermal expansion is 4.7 µm/m·K (2.61 µin/in·°F).
Electrical2
YG6X has an electrical resistivity of 2×10⁻⁷ Ω·m.
Chemical & Environmental2
Corrosion resistance is good (55/100), worse than 77% of ceramic grades.
Sustainability4
Producing a kilogram of YG6X takes about 300 MJ of energy and emits 22 kg of CO₂ — more than 74% of ceramic grades. Typical recycled content is 30%.
Manufacturability3
YG6X's machinability is not recommended (5/100, worse than 59% of ceramic grades).
Common Calculations2
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. YG6X is highlighted; hover a dot for its name, or open the interactive family chart.
Working with YG6X
Is YG6X easy to machine?
Green-state pressing/extrusion then diamond grinding, wire/sinker EDM or laser after sintering — no conventional cutting; keep grinding wheels cool to avoid edge micro-cracks.
Can YG6X be welded?
Not fusion weldable; join to steel by silver/Cu-based vacuum brazing (e.g. BAg-24, 700–900 °C) with a shim to absorb the CTE mismatch, or by braze-clad shrink fit.
Can YG6X be formed, bent or molded?
Net-shape by uniaxial die pressing, CIP or extrusion of PEG-bonded powder, dewaxed and vacuum/sinter-HIP fired at ~1400–1450 °C with ~18–20% linear shrinkage.
YG6X 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 |
|---|---|---|
| Cobinder phase | 5.5 – 6.5 | 6 |
| VCgrain-growth inhibitor | 0.1 – 0.5 | 0.3 |
| TaCgrain refiner / thermal-shock aid; NbC may substitute | 0 – 0.6 | 0.3 |
| Cr3C2optional inhibitor, some producers | 0 – 0.4 | 0.2 |
| WCfine-grain tungsten carbide, 0.8–1.2 µm | balance |
What surface finishes work on YG6X?
Diamond lapping/polishing to Ra<0.05 µm; PVD TiAlN/AlTiN or CVD TiCN-Al2O3 coating after Co-etch pretreatment; do not electroplate acidic baths that leach cobalt.
Equivalent designations
Standards and trade names that resolve to YG6X in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ISO
- K05
How much does YG6X cost?
YG6X is a high-cost ceramic ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
YG6X — frequently asked
What is YG6X used for?
YG6X is typically used for finish machining cast iron, reamers, small-diameter drills and precision cutting edges. In short: fine-grain finishing grade; sharper, more wear-resistant than YG6; higher rated temperature.
Is YG6X easy to machine?
Not especially — machinability is rated not recommended (5/100, worse than 59% of ceramic grades). Green-state pressing/extrusion then diamond grinding, wire/sinker EDM or laser after sintering — no conventional cutting; keep grinding wheels cool to avoid edge micro-cracks.
Can YG6X be welded?
Not fusion weldable; join to steel by silver/Cu-based vacuum brazing (e.g. BAg-24, 700–900 °C) with a shim to absorb the CTE mismatch, or by braze-clad shrink fit.
What surface finishes work on YG6X?
Diamond lapping/polishing to Ra<0.05 µm; PVD TiAlN/AlTiN or CVD TiCN-Al2O3 coating after Co-etch pretreatment; do not electroplate acidic baths that leach cobalt.
Can YG6X be formed, bent or molded?
Net-shape by uniaxial die pressing, CIP or extrusion of PEG-bonded powder, dewaxed and vacuum/sinter-HIP fired at ~1400–1450 °C with ~18–20% linear shrinkage.
What is the maximum service temperature of YG6X?
YG6X is rated for continuous use to about 800°C (1,472 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does YG6X cost?
YG6X is a high-cost ceramic ($$$$), 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
- ISO 513 Classification and application of hard cutting materials — ISO (2012)
- ASM Handbook Vol. 2 / Engineered Materials Handbook Vol. 4 — Cemented Carbides — ASM International (1991)
- Cemented carbide grade tables (WC-6Co fine grain) — Zhuzhou Cemented Carbide / Xiamen Golden Egret / Sandvik Hard Materials (2023)
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.