
Premium Quality 4340 Heat Treated Alloy Steel Bar High Strength for Aerospace. High Strength & Toughness: Superior mechanical strength, toughness, and wear resistance for heavy-duty applications. Wide Material Range: Includes Cr-Mo, Cr-Ni-Mo, Ni-Cr, Mn-Cr, and Boron alloy steels with various grades. Custom Dimensions: Available in diameters 10-800mm, thickness 10-200mm, and lengths up to 12m or customized. Multiple Surface Treatments: Options include polished, ground, coated, mill finish, and pickled surfaces. Global Standards Compliance: Meets ASTM, AISI, EN, DIN, JIS, GB, and BS international standards. Versatile Applications: Ideal for shafts, gears, hydraulic cylinders, automotive parts, and oil & gas equipment. OEM & ODM Services: Supports customized dimensions, drawings, and logo printing for specific project needs. Fast Delivery: Normal delivery time is 7-20 days depending on quantity and item specifications.