D2 (1.2379) Tool Steel

D2 High-Carbon, High-Chrome Steel: Maximum Abrasive Wear Resistance. The industry standard for high-cycle cold-work and precision cutting.

D2 (1.2379) Tool Steel

D2 is a high-carbon, high-chromium tool steel characterized by a high volume of hard carbides. It offers the best balance of wear resistance and toughness among the cold-work category, making it suitable for long-run production tooling.

Chemical Composition	Percentage %
Carbon	1.55%
Manganese	0.30%
Silicon	0.25%
Chromium	11.50%
Molybdenum	1.00%
Vanadium	1.00%

The heat treatment requirements for 1.2379 (D2) tool steel depend on multiple process and component-specific factors, including section size, geometry, and intended application. Essential parameters such as heating temperature, controlled cooling rate, and soaking duration must be carefully defined to achieve the desired hardness, wear resistance, and dimensional stability. Additional influences, including furnace type, quenching media, and the efficiency of workpiece handling and transfer systems, are equally important to ensure uniform results. For the most accurate and reliable heat treatment outcomes, it is advisable to consult experienced heat treatment professionals for grade-specific recommendations.

Certified Quality Assurance

At Progressive Metal Manufacturing, we provide high-performance materials backed by international quality benchmarks. Our 1.2379 (D2) tool steel is sourced and distributed under a rigorous ISO 9001 quality management system, ensuring that every batch meets strict chemical and mechanical specifications. This commitment to quality assurance provides our clients with the reliability and traceability required for critical industrial tooling, ensuring that your production components perform consistently under extreme stress.

Industrial Applications & Versatility

1.2379 (D2) is a high-carbon, high-chromium cold-work tool steel renowned for its exceptional wear resistance and toughness.

It is specifically engineered for tools that must maintain a sharp edge and withstand significant abrasive wear.

Common applications include:

High-Precision Cutting: Ideal for high-performance cutting tools, shears, and slitting cutters.

Fabrication & Stamping: Used extensively for stamping dies, forming rolls, and punches designed for long production runs.

Specialized Manufacturing: A preferred choice for professional woodworking tools and complex molding tools for abrasive plastics.

Precision Supply & Custom Specifications

We offer 1.2379 (D2) tool steel in various formats, processed with advanced sawing technology to meet your exact project blueprints.

Whether you require a single prototype or high-volume cut pieces, our facility is equipped to provide custom dimensions that reduce your internal machining time.

Our inventory capabilities include:

Round Bar: Sawn to your required lengths with diameters available from 4⌀ to 450⌀.

Plate & Sheet: Stock thicknesses ranging from 12mm to 410mm.

Custom Geometric Cuts: Precision rectangular sections, blocks, and plates sawn from flat bar or plate to your specific tolerances.

Our technical sales team is standing by to help you navigate your specific 1.2379 (D2) steel requirements and coordinate seamless logistics for your facility.

D2 (1.2379) Tool Steel