Hot Rolled 30cr SCR430 28cr4 1.7030 5130 Steel Round Bar

Hot Rolled 30cr SCR430 28cr4 1.7030 5130 Steel Round Bar. High Strength & Hardenability: 28Cr4 alloy steel offers superior strength and hardenability for critical parts under wear and impact. Wide Application Range: Ideal for shafts, gears, bolts, nuts, and parts requiring surface quenching in automotive and industrial sectors. Multiple Surface Treatments: Available in Black, Peeled, Polished, Machined, Grinded, and Turned finishes to suit various needs. Comprehensive Heat Treatment: Options include Normalized, Annealed, Quenched, and Tempered to adjust mechanical properties. Extensive Size Availability: Round bars from 0.1mm to 500mm diameter; plates and blocks up to 200mm thickness and 2500mm width. Strict Quality Testing: Includes tensile strength, yield strength, elongation, hardness, grain size, and ultrasonic testing. Global Standard Compliance: Meets AISI, ASTM, GB, JIS, DIN, and BS standards for international trade acceptance. Three-Year Warranty: Backed by a three-year warranty period with dedicated after-sales service support.