High Performance Q390A/JIS Stkt540 Alloy Structural Steel Round Bar

High Performance Q390A/JIS Stkt540 Alloy Structural Steel Round Bar. Comprehensive Mechanical Properties: High tensile strength, yield strength, elongation, and impact value suitable for high-load applications. Versatile Heat Treatment Options: Available in Normalized, Annealed, Quenched, and Tempered conditions to meet specific requirements. Wide Size Range Availability: Round bars from 6mm to 1200mm diameter and plates up to 500mm thickness available. Multiple Surface Finishes: Options include Black, Peeled, Polished, Machined, Grinded, Turned, and Milled surfaces. Extensive Testing Capabilities: Includes tensile strength, grain size, ultrasonic, magnetic particle testing, and US inspection. Global Standard Compliance: Meets AISI, ASTM, GB, JIS, DIN, and BS standards for international trade. Flexible Delivery Conditions: Available as Hot Forged, Hot Rolled, Cold Drawn, or Annealed based on customer needs. 15 Years Manufacturer Experience: Proven track record in smelting, forging, and exporting special steel products globally.