X45NiCrMo4 Steel (1.2767): Properties, Heat Treatment & Supply 

For engineers and manufacturers in demanding industries, selecting the right material is critical for performance and reliability. X45NiCrMo4, also known as DIN 1.2767 or AISI 6F7, is a premier nickel-chromium-molybdenum alloy steel. It is engineered for applications requiring exceptional toughness, high strength, and uniform hardenability. This grade excels in heavy-duty components like forging dies, plastic molds, high-stress shafts, and other mechanical parts subjected to severe impact and wear. 

As a leading UAE-based stockist, Nifty Alloys LLC supplies fully certified X45NiCrMo4 steel in round bars, plates, and custom forgings. We provide materials that meet stringent international standards, ensuring your projects are built on a foundation of quality and reliability. Our global distribution network guarantees timely delivery to support your manufacturing and operational needs. 

What is X45NiCrMo4 Steel? 

X45NiCrMo4 is a high-nickel alloy tool steel specifically designed to deliver a superior combination of toughness, wear resistance, and through-hardening capability. Its balanced chemistry makes it one of the most reliable materials for tools and components that operate under high mechanical stress and impact loads. The significant nickel content is fundamental to its performance, providing remarkable toughness and ensuring deep, uniform core strength even in large cross-sections. 

The inclusion of chromium and molybdenum further enhances its mechanical properties. Chromium boosts hardenability and contributes to its wear resistance, while molybdenum increases strength at elevated temperatures and improves overall hardenability. This synergy makes 1.2767 steel ideal for large-scale tooling, such as forging dies, complex plastic injection molds, and structural components that cannot afford to fail under pressure. Its ability to achieve high hardness while retaining excellent toughness distinguishes it from many other tool steel grades. 

Key Features & Advantages 

Choosing X45NiCrMo4 steel for your project offers several distinct advantages rooted in its well-balanced metallurgical properties. 

• Exceptional Toughness and Impact Strength: The high nickel content ensures the material can absorb significant energy without fracturing, making it ideal for impact-loaded tools. 
• Excellent Through-Hardening Ability: Achieves uniform hardness deep into the core, even in very large sections, ensuring consistent performance. 
• High Wear and Fatigue Resistance: The combination of hardness and toughness provides a long service life under cyclic loading and abrasive conditions. 
• Good Dimensional Stability: Exhibits predictable and stable behavior during heat treatment when processed correctly, reducing distortion in complex parts. 
• Good Polishability: Can be polished to a high-quality surface finish, a critical requirement for plastic molds. 
• Suitability for Surface Treatments: Responds well to nitriding and PVD/CVD coating, which can further enhance surface hardness and wear resistance. 

This combination of features makes X45NiCrMo4 a reliable and high-performance choice for your most critical engineering components.