XSL 513 (Alloy Structural Steel)
Type: Chinese enterprise-standard alloy steel (equivalent to mid-grade Cr-Mo structural steel).
Composition: Low-carbon steel with Chromium (Cr), Molybdenum (Mo), and trace alloys.
Properties: High tensile strength (≥800 MPa), good toughness, and wear resistance.
Hardness: 200–300 HB.
Typical Use: Critical mechanical parts like gears, shafts, and high-strength fasteners.
