· KAIPU Engineering · materials-encyclopedia · 1 min read
GB YG6 Tungsten Carbide (K20)
Materials encyclopedia entry for YG6.
GB YG6 Tungsten Carbide (K20) is a reference entry for industrial cutting tools and blades. The composition, hardness, heat treatment and application guidance are summarised below for engineering reference.
Standard composition: WC 94 %, Co 6 %, no grain-growth inhibitors, WC grain 1.5–2.5 µm
Hardness: HRA 91.0–92.0 (≈ HRC 78–80)
Heat treatment: Sintered at 1,400–1,480 °C, no further heat treatment
Properties: Standard general-purpose coarse-grain YG6. Lower cost than YG6X. Lower wear resistance but higher impact resistance.
Applications: Non-precision wear parts, granulator bed knives (light duty), general mechanical wear parts.
Cross-reference: ≈ ISO K20, no precise Western equivalent.
See also: D2 vs SKD11 comparison, Material Grade Converter, The KAIPU 5-Factor Blade Selection Framework.