Product Overview
Introducing the T15-Super Premium High-Speed Steel Plate — a top-tier solution engineered for extreme wear resistance, thermal stability, and dimensional integrity in demanding metalworking and tooling applications. This ASTM A600-compliant HSS plate is vacuum melted to eliminate gas porosity and microsegregation, ensuring exceptional homogeneity and carbide distribution. As one of the highest-performance grades in the T15 high-speed steel family, the T15-Super delivers superior red hardness (up to 650°C), exceptional abrasion resistance, and outstanding edge retention — making it ideal for premium-grade cutting tools, dies, and precision forging components.
Manufactured under strict ISO 9001-certified processes, each 12mm thick × 600mm × 1200mm plate undergoes rigorous metallurgical verification, including spectrographic analysis and ultrasonic testing. The T15-Super designation reflects its optimized vanadium and cobalt content (≥12% combined), enabling unmatched performance in high-speed machining, aerospace component blanking, and cold work tooling where conventional HSS plates fall short.
Key Features
- Vacuum melted for ultra-low oxygen/nitrogen content and zero internal voids
- ASTM A600 compliance with certified chemical composition and mechanical traceability
- Exceptional hot hardness: maintains >63 HRC at 600°C
- High vanadium carbide density for extreme wear resistance
- ISO 9001-certified production with full material test reports (MTRs)
- Optimized for precision grinding, EDM, and CNC machining post-heat treatment
Technical Specifications
| Parameter |
Value |
| Grade |
T15-Super (M42 derivative, enhanced V/Co) |
| Standard |
ASTM A600 Class 2, Type A |
| Thickness |
12 mm ±0.15 mm |
| Width × Length |
600 mm × 1200 mm (±0.3 mm) |
| Material Condition |
Annealed (HB 240–280) |
| Hardness (as heat treated) |
66–68 HRC |
| Carbon Content |
1.50–1.65 wt% |
| Vanadium Content |
4.75–5.25 wt% |
| Cobalt Content |
7.75–8.25 wt% |
| Molybdenum + Tungsten |
≥18.0 wt% (combined) |
| Oxygen Level (vacuum melted) |
≤15 ppm |
| Certification |
ISO 9001, Mill Test Report (EN 10204 3.1) |
Applications
This T15 high-speed steel plate is widely specified by tier-1 toolmakers and aerospace suppliers for manufacturing end mills, broaches, gear cutters, progressive die blanks, and high-precision forging inserts. Its vacuum melted consistency ensures reliable performance in critical applications such as turbine blade milling, titanium alloy machining, and high-volume automotive stamping dies. As an advanced HSS plate, it serves as the preferred substrate for PVD-coated tooling and is increasingly adopted in additive manufacturing preforms and hybrid near-net-shape forging billets — reinforcing its role as the benchmark among T15-Super grade materials.
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