55NiCrMoV7 Steel | DIN 1.2714 | AISI L6 Hot Work Tool Steel - Nifty Alloys LLC

55NiCrMoV7 steel is a high-performance, nickel-chromium-molybdenum-vanadium alloyed hot work tool steel renowned for its exceptional toughness, impact strength, and resistance to thermal shock. Standardized as DIN 1.2714 and closely related to AISI L6, this material delivers superior performance in demanding industrial environments. Its balanced chemical composition makes it the ideal choice for applications like die casting, forging dies, hammer tools, and large-scale molds where durability and resilience are critical for operational success. 

At Nifty Alloys LLC, we supply premium-grade 55NiCrMoV7 steel to meet the stringent requirements of the manufacturing, forging, and tooling industries across the UAE. Our commitment is to provide certified materials that adhere to international standards, ensuring reliability and performance for your most critical applications. This grade's ability to maintain structural integrity under high stress and elevated temperatures makes it an indispensable asset in modern hot work tooling. 

This detailed guide covers the essential technical specifications of 55NiCrMoV7 steel, including its chemical composition, mechanical properties, heat treatment procedures, and common applications, to assist engineers and procurement managers in making informed decisions. 

Key Features & Benefits 

The specific combination of properties in 55NiCrMoV7 steel translates into tangible benefits for tool manufacturers and end-users. Its design prioritizes durability and reliability in the most challenging operational settings. 

• Excellent Toughness and Ductility: Its primary advantage is its ability to withstand high-impact forces without fracturing. The high nickel content ensures superior toughness compared to other hot work grades. 
• High Impact and Fatigue Resistance: Ideal for applications involving repeated mechanical shocks, such as hammer forging and punching operations. It resists crack initiation and propagation, leading to a longer tool lifespan. 
• Good Through-Hardening Properties: The molybdenum and chromium content ensures uniform hardness is achieved throughout the entire cross-section, even in large die blocks. This is critical for maintaining dimensional stability and performance in large-scale tooling. 
• Suitability for Large Die Blocks: Due to its excellent through-hardenability and toughness, DIN 1.2714 is a preferred material for manufacturing large forging dies and plastic mold bases. 
• Maintains Strength at Elevated Temperatures: While not as resistant to high temperatures as H-series tool steels (like H13), 55NiCrMoV7 retains sufficient hardness and strength for many medium-temperature hot work applications, especially those involving water cooling. 
• Good Machinability in the Annealed Condition: In its softened state, the steel can be machined effectively, allowing for the creation of complex die and mold geometries before heat treatment.