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VIKING Tool Steel

Updated: 2026-07-21

Overview

VIKING mold steel is a premium-grade tool steel developed for demanding mold-making applications. It belongs to the family of high-performance steels engineered to withstand the rigors of plastic injection molding and die-casting processes. Manufacturers favor VIKING for its balanced properties, which include exceptional toughness to resist chipping and cracking, combined with sufficient hardness to maintain dimensional stability under high-pressure molding conditions.

Structure and Working Principle

The steel's performance stems from its carefully controlled alloy composition, typically containing chromium, molybdenum, and vanadium. These alloying elements contribute to the formation of hard carbides that enhance wear resistance while maintaining good machinability in the annealed state. When properly heat treated, VIKING steel develops a uniform microstructure that provides optimal combination of hardness (typically 52-56 HRC after hardening) and impact resistance. This makes it particularly suitable for molds subject to high mechanical stresses or abrasive wear.

Key Features

VIKING steel stands out for its exceptional through-hardening properties, allowing for uniform hardness in large cross-sections. This characteristic is crucial for maintaining consistent performance throughout the mold's service life. The material also exhibits good polishability, enabling production of high-gloss plastic parts. Its thermal conductivity and resistance to thermal fatigue make it suitable for applications involving rapid heating and cooling cycles typical in injection molding processes.

Application Areas

Primary applications include plastic injection molds for engineering plastics, die-casting molds for non-ferrous metals, and various cutting tools. It's particularly valued for molds producing technical plastic components where surface quality and dimensional precision are critical. In the automotive industry, VIKING is often specified for molds producing interior components and under-the-hood parts. The electronics industry uses it for molds creating housings and connectors where fine details must be precisely reproduced over thousands of cycles.

Maintenance and Precautions

Proper heat treatment is essential to achieve VIKING steel's full potential. Typical hardening involves austenitizing at 1000-1030°C followed by oil or air quenching, with subsequent tempering to the desired hardness level. Regular maintenance of molds made from VIKING steel should include periodic inspection for wear and proper lubrication of moving parts. Storage in dry conditions is recommended to prevent surface corrosion, though the steel's chromium content provides reasonable corrosion resistance.

B2B Procurement Guide

When sourcing VIKING mold steel, verify the supplier's material certifications, including mill test reports that confirm chemical composition and hardness properties. Reputable suppliers should provide traceability to the original steel producer. Consider ordering pre-hardened stock if your facility lacks heat treatment capabilities. For large orders, negotiate based on weight rather than piece price. Lead times can vary significantly depending on the required dimensions and surface finish specifications.

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