YW1 FG
Grade
ISO M10
FG = fine-grain (≤1 µm WC) version
Pick when edge sharpness and wear resistance matter more than impact toughness, e.g. finishing and small-diameter tooling.
Values for the FG condition
What is YW1 FG?
YW1 FG is YW1 in the FG grade — pick when edge sharpness and wear resistance matter more than impact toughness, e.g. finishing and small-diameter tooling. YW1 FG has a tensile strength of 850 MPa (123 ksi), stronger than 81% of ceramic grades. Elongation at break is 0% and the elastic modulus is 520 GPa (75.4 Msi). YW1 FG has a density of 12.9 g/cm³ (0.466 lb/in³), heavier than 84% of ceramic grades. It melts at 1,320°C (2,408 °F).
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
- Polishes to a fine finish — 90/100, better than 78% of ceramic grades
Limitations
- Needs corrosion protection — 48/100, worse than 85% of ceramic grades
- Heavy — 12.9 g/cm³ (0.466 lb/in³), worse than 84% of ceramic grades
- High embodied carbon — 26 kg CO₂/kg, worse than 81% of ceramic grades
YW1 FG properties
Typical room-temperature values for YW1 FG; 8 are specific to this condition. Other listed values are YW1 reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical3
YW1 FG has a density of 12.9 g/cm³ (0.466 lb/in³), heavier than 84% of ceramic grades. It melts at 1,320°C (2,408 °F).
Mechanical13
YW1 FG has a tensile strength of 850 MPa (123 ksi), stronger than 81% of ceramic grades. Elongation at break is 0% and the elastic modulus is 520 GPa (75.4 Msi).
Thermal5
YW1 FG is rated for continuous service to 900°C (1,652 °F). It conducts heat at 27 W/m·K (15.6 BTU/hr·ft·°F), better than 56% of ceramic grades. Thermal expansion is 5.9 µm/m·K (3.28 µin/in·°F).
Electrical2
YW1 FG has an electrical resistivity of 3.5×10⁻⁷ Ω·m.
Chemical & Environmental2
Corrosion resistance is fair (48/100), worse than 85% of ceramic grades.
Sustainability4
Producing a kilogram of YW1 FG takes about 380 MJ of energy and emits 26 kg of CO₂ — more than 83% of ceramic grades. Typical recycled content is 30%.
Manufacturability3
YW1 FG's machinability is not recommended (4/100, worse than 85% of ceramic grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with YW1 FG
Is YW1 easy to machine?
Only diamond-wheel grinding, diamond lapping, wire/sinker EDM or laser — no conventional cutting; grind wet to avoid thermal cracks.
Can YW1 be welded?
Not fusion weldable; join by silver/copper brazing (Ag-Cu-Ti or AgCuZn at 700–900 °C) with a ductile shim to absorb CTE mismatch, or by shrink fit.
Can YW1 be formed, bent or molded?
Shaped by uniaxial/CIP powder pressing, extrusion or injection moulding of the WC-TiC-TaC-Co powder followed by liquid-phase sinter-HIP; ~18–22 % linear shrinkage must be allowed for.
What surface finishes work on YW1?
Diamond lap or polish to Ra <0.1 µm before CVD/PVD coating; edge honing controls chipping, and passivation/dry storage protects the cobalt binder.
YW1 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 – 7 | 6 |
| TiCcubic carbide, crater-wear resistance | 4 – 7 | 5.5 |
| TaC+NbCgrain-growth inhibition, hot strength | 2.5 – 5 | 4 |
| WCbalance, ~84–85 % | balance | — |
YW1 FG — frequently asked
What is YW1 FG used for?
YW1 FG is typically used for stainless steel machining, heat-resistant alloy cutting and general-purpose finishing. In short: universal steel and cast-iron grade; balanced hardness and toughness; highest thermal conductivity in group.
What is the tensile strength of YW1 FG?
YW1 FG has a typical tensile strength of 850 MPa (123 ksi) — stronger than 81% of ceramic grades.
Is YW1 FG easy to machine?
Not especially — machinability is rated not recommended (4/100, worse than 85% of ceramic grades). Only diamond-wheel grinding, diamond lapping, wire/sinker EDM or laser — no conventional cutting; grind wet to avoid thermal cracks.
Can YW1 FG be welded?
Not fusion weldable; join by silver/copper brazing (Ag-Cu-Ti or AgCuZn at 700–900 °C) with a ductile shim to absorb CTE mismatch, or by shrink fit.
What surface finishes work on YW1 FG?
Diamond lap or polish to Ra <0.1 µm before CVD/PVD coating; edge honing controls chipping, and passivation/dry storage protects the cobalt binder.
Can YW1 FG be formed, bent or molded?
Shaped by uniaxial/CIP powder pressing, extrusion or injection moulding of the WC-TiC-TaC-Co powder followed by liquid-phase sinter-HIP; ~18–22 % linear shrinkage must be allowed for.
What is the maximum service temperature of YW1 FG?
YW1 FG 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.
Sources
- ISO 513 Classification and application of hard cutting materials — ISO (2012)
- ASM Handbook Vol. 2 — Properties of Cemented Carbides — ASM International (1990)
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.