300M (AMS 6419 / AMS 6257)

300M Alloy Steel Designed to meet the heaviest demands of the aerospace industry, 300M is the ultra-high-strength version of the familiar 4340 steel, strengthened by the addition of silicon and vanadium. As Varzene Metalurji, we supply this ambitious alloy using vacuum arc remelting (VAR) technology, which maximizes structural integrity and cleanliness. Thanks to its high tensile strength and fatigue resistance, it provides highly successful results in aircraft landing gears and fasteners subjected to extreme stress. With our meticulously managed manufacturing stages, we keep the material's performance constant in every batch and produce reliable solutions for your demanding designs.

Applications:

• Aircraft landing gears
• Critical structural body parts in aerospace
• High-strength fasteners and bolts
• Motorsports and high-performance power transmission shafts

300M alloy steel is produced in accordance with the following aerospace standards:

• AMS 6419 – This is the general specification for aerospace quality bar and forging products.
• AMS 6257 – Applied for ultra-high-purity bars and forgings that have undergone the Vacuum Arc Remelting (VAR) process.

These standards define specific technical requirements for both the material's form and the production process. As Varzene Metalurji, we ensure full compliance with these specifications in all our production processes.