Factory Direct Carbide Welding Blades Tungsten Brazed-Tip Lathe Cutting Inserts for Steel & Cast Iron Machining
The A420Z tungsten carbide brazed tip is a welding-type lathe cutting insert engineered for reliable, high-efficiency turning of steel and cast iron. Made from 100% virgin tungsten carbide, it delivers an exceptional combination of hardness, wear resistance and transverse rupture strength — extending tool life and keeping your machining stable even under heavy, continuous cutting loads.
Why Choose the A420Z
Superior Wear ResistancePremium virgin carbide grades (HRA 89–92.9) resist edge wear and cratering, dramatically outlasting ordinary tool bits.
Toughness by DesignToughness is guaranteed by the maximum allowable tip size, a strong steel shank grade and professional heat treatment.
Secure, Reliable FixationSecure mounting is ensured by the flutes of the tool holder combined with high-quality brazing — no tip loosening or break-off during heavy cuts.
Full Grade RangeYG6 / YG8 / YG15 / K10 / K20 / K30 / K40 grades cover everything from finish turning to roughing of hard materials.
Technical Specifications
| Model No. | A420Z |
|---|---|
| Product Name | Tungsten Carbide Welding Insert / Brazed Tip |
| Material | 100% Virgin Tungsten Carbide |
| Available Grades | YG6, YG8, YG15, K10, K20, K30, K40 |
| Hardness | HRA 89 – 92.9 |
| Density | 14.0 – 14.8 g/cm³ (YG6: 14.9 g/cm³) |
| Transverse Rupture Strength (T.R.S) | 2,500 – 4,500 N/mm² (YG6: 3,000 MPa) |
| Dimensions (YG6) | 20 × 10 × 7 mm (other sizes on request) |
| Application | Metal cutting machines — turning of steel & cast iron |
| Customization | OEM / ODM per customer drawings and requests |
Reference Grade Data — YG6
| Grade | Length | Width | Height | Density | Hardness | T.R.S |
|---|---|---|---|---|---|---|
| YG6 | 20 mm | 10 mm | 7 mm | 14.9 g/cm³ | 90 HRA | 3,000 MPa |
Applications
- Turning and boring of steel workpieces on lathes and metal cutting machines
- Roughing and finishing of cast iron components
- Brazed tool bits for general-purpose machining workshops
- Heavy-duty continuous cutting where insert fixation and toughness are critical
Packaging & Delivery
| Transport Package | 25 kg carton, inner shock-proof packing |
|---|---|
| Production Capacity | 100,00 kg / month — fast lead times for bulk orders |
| MOQ / Tiers | Flexible quantity tiers with volume discounts (5–49 kg / 50–99 kg / 100+ kg) |