Case hardening and through hardening improve steel performance in different ways. One creates a hard, wear-resistant surface over a tougher core, while the other develops hardness through the part’s effective section. This article compares their processes, properties, materials, and applications. Case Hardening vs Through Hardening: Quick Comparison Case hardening and through hardening differ mainly…
SAE/AISI 1566 is a high-carbon manganese steel selected for components that require a practical balance of hardness, strength, wear resistance, fatigue performance, and toughness. With approximately 0.60–0.71% carbon, the material can achieve high surface hardness after suitable quenching and tempering. Typical applications include springs, shafts, pins, blades, agricultural equipment parts, wear components, and precision parts…
Choosing between 3+2 machining and simultaneous 5-axis machining can significantly affect manufacturing cost, lead time, and part quality. While both processes use a five-axis CNC machine, they serve different purposes. This guide explains their key differences and helps you select the right machining strategy for your application. What Is 3+2 Machining? 3+2 machining, also…
52100 steel is a high-carbon chromium bearing steel known for its exceptional hardness, wear resistance, and rolling contact fatigue resistance. Unlike many general alloy steels, it is typically machined in the annealed condition and finished by precision grinding after heat treatment to achieve tight tolerances. This guide covers its material properties, machinability, heat treatment, CNC…
4340 steel combines high strength, toughness, and fatigue resistance, making it suitable for demanding machined components. This guide explains its material properties, machinability, CNC machining methods, heat-treatment considerations, and common applications. 4340 Alloy Steel: Composition, Properties, and Grades Chemical Composition 4340 alloy steel belongs to the nickel-chromium-molybdenum family of low-alloy steels. Its chemical composition…
Many aerospace and power transmission components depend on carburized gear steels to handle repeated contact loads. Among them, 9310 alloy steel is a common choice for gears, pinions, and gear shafts. This guide explains 9310 steel machining, heat treatment, and typical applications. What Is 9310 Alloy Steel Chemical Composition Nickel, chromium, and…
8620 alloy steel is widely used for gears, shafts, bushings, and other wear-resistant components. Its combination of a tough core and a durable surface makes it a popular choice for power transmission and mechanical systems. This article explores the material properties, machining characteristics, heat-treatment considerations, and common applications. What Is 8620 Steel This low-carbon…
4130 steel combines strength, weldability, and machinability, making it a common material for aerospace, motorsports, and industrial components. This guide covers CNC machining processes, tooling, challenges, and best practices for machining 4130 steel. What Is 4130 Steel 4130 steel is a low-alloy chromium-molybdenum steel known for its combination of strength, toughness, and manufacturing…
Plastic machining enables the production of complex, high-precision components from a wide range of engineering plastics. At Rollyu Precision, materials such as PEEK, Delrin, Nylon, and PTFE are commonly machined for applications requiring tight tolerances and reliable dimensional stability. Material selection, machining strategy, and process control all play a key role in achieving consistent results….
When engineers design components subjected to heavy loads, repeated impact, or demanding operating conditions, material selection becomes critical. Among the many engineering steels available today, AISI 4140 alloy steel remains one of the most trusted choices. Its unique combination of strength, toughness, wear resistance, heat treatability, and reasonable machinability makes it suitable for a wide…
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