Product Overview

The T-Series-303 Cold-Work Tool Steel plate is a premium-grade, vacuum heat-treated tool steel solution engineered for high-precision, high-wear industrial applications. Designed to meet stringent international standards, this grade corresponds precisely to AISI D2 and DIN 1.2379 specifications — delivering exceptional wear resistance, dimensional stability, and compressive strength after hardening. As a specialized cold-work tool steel, T-Series-303 excels in environments demanding minimal distortion, superior edge retention, and consistent performance under repeated mechanical stress. Its optimized alloy composition (high carbon, high chromium with molybdenum and vanadium) ensures fine carbide distribution and excellent machinability prior to final heat treatment.

Key Features

• Vacuum heat treated for zero surface oxidation and precise hardness control (58–62 HRC)
• Uniform microstructure with refined primary carbides for enhanced toughness
• Excellent resistance to abrasive wear and chipping in cold-forming operations
• Superior dimensional stability during grinding and EDM processing
• Ready-to-machine condition with tight thickness tolerance (±0.15 mm)
• Traceable material certification (EN 10204 3.1) included with every plate

Technical Specifications

Applications

This T-Series-303 cold-work tool steel plate is widely deployed across precision tooling and die-making industries. Typical applications include blanking and piercing dies, progressive stamping tools, shear blades, cold extrusion punches, thread rolling dies, and high-duty gauges — all benefiting from its outstanding wear resistance and fatigue life. As a trusted D2 tool steel alternative, it serves global OEMs and Tier-1 suppliers in automotive, aerospace, and industrial equipment manufacturing where reliability, repeatability, and long service life are non-negotiable.