Precision-engineered YG8 cemented carbide dies — heat-pressed, mirror-polished, and built for industrial wire drawing reliability.
This high-performance tungsten carbide drawing die features a precision-ground, mirror-polished bore (Ra ≤0.02 μm) and is manufactured from YG8 grade cemented carbide — delivering exceptional compressive strength (>3800 MPa), superior wear resistance, and thermal stability under continuous wire drawing loads. The tungsten carbide nib is thermally press-fitted into a heavy-duty steel casing, ensuring zero micro-movement and long-term dimensional integrity. Designed for North American and global OEMs requiring repeatable accuracy in steel, stainless steel, welding, copper, and aluminum wire production.
All dies are marked with imperial size (e.g., 0.312″ ≈ 7.92 mm) for immediate identification on shop floors and comply with ISO 3327:2022 for carbide die geometry and surface quality.
Carbide nib permanently bonded to steel casing via controlled thermal expansion—eliminates delamination, ensures concentricity, and extends service life by ≥40% vs. adhesive or mechanical assembly.
Electrolytic polishing achieves Ra ≤0.02 μm surface finish—reducing friction coefficient by 35%, minimizing material adhesion, and enabling smoother, brighter wire surfaces.
Optimized WC-Co composition (92% WC / 8% Co) delivers balanced hardness (HRA 89.5), fracture toughness (KIC ≈ 14 MPa·m½), and thermal shock resistance for demanding multi-pass applications.
Cold-drawn high-carbon, spring, and austenitic grades (e.g., 304, 316) at speeds up to 15 m/s.
ER70S-6, ER308L, and flux-cored wires — minimal surface scoring, consistent ovality control.
Copper (ETP, OFHC), aluminum (1350, 6101), and brass — low galling, high surface fidelity.
| Parameter | Value |
|---|---|
| Material Grade | YG8 (92% WC / 8% Co) |
| Bore Diameter | 0.312 inch (≈7.92 mm) — Imperial marking standard |
| Hardness (HRA) | ≥89.5 |
| Transverse Rupture Strength | ≥3800 MPa |
| Surface Roughness (Ra) | ≤0.02 μm (mirror polished) |
| Casing Material | Forged carbon steel (AISI 1045 equivalent), hardened & tempered |
| Assembly Method | Thermal press-fit (ΔT >150°C differential) |
| Compliance Standard | ISO 3327:2022 (Drawing dies — Geometry and surface quality) |
It denotes the nominal inner bore diameter in inches — directly traceable to ANSI B47.1 standards. Metric equivalents (e.g., 7.92 mm) are provided upon request for dual-unit documentation.
Yes. The YG8 grade and mirror finish make them suitable for fine wires down to 0.05 mm and multi-strand bundles when configured with appropriate entry angles and reduction ratios.
Yes — we support custom entry angles (6°–16°), bearing lengths (0.5–3× bore dia), and specialized profiles (e.g., elliptical, tapered) under NDA. Lead time: +5–7 working days.
Each die undergoes 3-point air gauge measurement (±0.2 μm resolution) and optical profilometry (for surface finish). Full inspection reports accompany every shipment.
Specify bore size, material, quantity, and application — receive engineering-grade quote within 4 business hours.
