High-wear-resistance CVD-coated hard metal insert for precision steel pipe machining on CNC lathes — engineered for longevity, consistency, and industrial-grade performance.
The SPUB-63A is a premium-grade tungsten carbide scarfing insert specifically engineered for high-efficiency external turning of steel pipes. Featuring a proprietary YBC151 substrate combined with a triple-layer CVD coating (MT-TiCN + thick Al₂O₃ + TiN), it delivers exceptional wear resistance, thermal stability, and edge retention — even under continuous heavy-duty machining conditions.
Designed for seamless integration into CNC lathe tooling systems, this insert enables precise burr removal, surface finishing, and scarfing operations on carbon steel, alloy steel, and stainless steel pipe components. Trusted by Tier-1 pipe manufacturers globally for consistent dimensional accuracy and extended tool life.
HRA92 hardness paired with multi-layer CVD coating ensures >3× longer tool life vs. standard P20 inserts — reducing downtime and per-part machining costs in high-volume pipe production.
Optimized geometry and tight dimensional tolerances (±0.02mm) guarantee repeatable positioning and stable cutting performance on Fanuc, Siemens, and Mitsubishi-controlled lathes.
OEM/ODM services available — including custom grades, coatings, chipbreakers, packaging, and laser marking. Rapid prototyping and validation support for new pipe processing lines.
Scarfing weld seams and finishing OD surfaces on API 5L X65/X70 pipes.
High-speed external turning of square/rectangular hollow sections (SHS/RHS).
Precision machining of seamless steel tubing for suspension and frame assemblies.
| Parameter | Specification |
|---|---|
| Model Number | SPUB-63A |
| Grade | YBC151 (equivalent to ISO P20) |
| Coating | CVD — MT-TiCN + Thick Al₂O₃ + TiN |
| Hardness | HRA 92 |
| Material | Tungsten Carbide (WC-Co) |
| Applicable Machine | CNC Lathe (with ISO/ANSI compatible tool holders) |
| Primary Application | External Turning & Scarfing of Steel Pipes |
| Certification | ISO 9001:2015 Certified Manufacturing |
| Origin | Zhuzhou City, Hunan, China |
The insert excels on carbon steels (A106, A53), low-alloy steels (X65, X70), and austenitic stainless steels (304, 316). Not recommended for cast iron or non-ferrous alloys.
Yes — sample orders of 5–10 pcs are accepted. Lead time: 3–5 working days after confirmation. Freight terms negotiable.
Yes — all SPUB-63A inserts are manufactured under our ISO 9001:2015 certified quality management system, with full traceability per batch.
Get technical consultation, custom grade evaluation, or a competitive quote — directly from our application engineering team.
