Meaning
Powder metallurgy tool steel featuring balanced vanadium and chromium additions offers exceptional wear resistance coupled with high ductility for heavy-duty tooling. A cold-work tool steel designated as Vanadis 4 Extra utilizes powder manufacturing to eliminate macro-segregation and ensure uniform carbide dispersion. Isotropic material properties govern tool life consistency and dimensional stability during complex die heat treatment.
The grade governs high-wear blanking and cold-forming tools, stopping short of applications requiring extreme red-hardness above five hundred fifty degrees Celsius.
Powder Metallurgy
Atomized powder consolidation produces uniform microstructure free from carbide banding. Processing Vanadis 4 Extra via powder metallurgy yields fine, evenly distributed vanadium carbides throughout the matrix.
Microstructural Homogeneity
Fine carbide dispersion imparts equal toughness in both longitudinal and transverse directions across large die blocks. Isotropic strength in Vanadis 4 Extra prevents premature edge cracking along intricate die punch profiles during heavy pressing. Production trial runs measure die edge wear rates under actual stamping speeds before approving full tool release.
Relying on lab coupon wear rates instead of press trial audits risks overestimating die life in high-speed blanking.
Wear Life
Superior adhesive wear resistance extends die regrind intervals in abrasive sheet metal blanking. High vanadium content forms hard MC carbides that protect cutting edges from severe sliding abrasion, reducing tool maintenance frequency.