Characteristics of 100Cr6 Bearing Steel Pipes

100Cr6 Bearing Steel Pipes are seamless steel tubes made from high-carbon chromium bearing steel, renowned for their exceptional properties.
1. Superior Hardness and Wear Resistance
High-Carbon Chromium Alloy Composition:
100Cr6 steel contains approximately 1.0% carbon and 1.35%-1.65% chromium, forming a fine pearlitic structure. After quenching, it develops martensite with dispersed chromium carbides, significantly enhancing hardness and wear resistance.
Applications:
Ideal for high-wear environments (e.g., bearings, drive shafts, gears), maintaining surface integrity over prolonged use and extending equipment lifespan.
2. High Strength and Fatigue Resistance
Mechanical Properties:
Through heat treatment (e.g., spheroidizing annealing, quenching, and tempering), it achieves high tensile strength (typically ≥1,000 MPa) and yield strength while preserving good toughness.
Fatigue Resistance:
Uniformly distributed chromium carbides reduce crack initiation sites, making it suitable for components under alternating loads (e.g., engine mounts, mining equipment frames).
3. Dimensional Accuracy and Surface Quality
Seamless Process:
Manufactured using hot-rolling or cold-rolling (cold-drawing) techniques, ensuring smooth inner and outer walls with strict dimensional tolerances (e.g., outer diameter tolerance ±0.1 mm), minimizing subsequent machining allowances.
Consistency:
Uniform chemical composition and low non-metallic inclusion content prevent localized performance defects, enhancing product reliability.
4. High-Temperature Resistance and Thermal Stability
High-Temperature Performance:
Maintains structural integrity in elevated-temperature environments (e.g., aerospace engines, industrial furnaces), resisting thermal softening.
Heat Treatment Adaptability:
Optimized heat treatment processes (e.g., spheroidizing annealing to reduce hardness for easier machining, quenching and tempering to enhance comprehensive performance) allow flexible performance adjustments.