Defense Industry
INDUSTRY APPLICATION
Defense applications exceed civilian standards. Materials must pass stringent military specification testing and maintain reliable performance under extreme conditions — high temperature, sub-zero cold, high pressure, and blast shock. Supplier quality management and material traceability are as important as the material itself.
Carbon Steel Round Bar
Carbon steel covers general structural parts, support frames, and non-armored components. S45C and S50C Q&T are used for vehicle chassis structural members, weapon system mounts, and mechanism brackets. While these parts do not directly absorb combat damage, they must maintain dimensional stability and structural strength throughout long service life.
Alloy Steel Round Bar
Alloy steels are the backbone of defense core components. SCM420 and SNCM220 (8620) carburized serve military vehicle transmission gears and differentials, maintaining drivetrain reliability under extreme load and temperature. SCM440 and SNCM439 handle artillery components and armored vehicle drivetrain structural elements, with long-verified reliability under high-stress, high-fatigue conditions. High-strength alloy steel specially heat-treated reaches extreme tensile strength for critical load-bearing structures. Every batch of defense steel requires a complete Mill Test Certificate confirming composition and mechanical properties meet specification.
Cold Heading Steel
Cold heading steel produces military-spec fasteners and special formed components. Military equipment fasteners must pass strength, fatigue, and environmental testing far stricter than civilian standards, with extremely tight batch-to-batch consistency requirements. 50BV30 for mil-spec high-strength bolts with boron-vanadium addition ensures stable post-Q&T performance. 10B33 covers standard-strength mil-spec fasteners. Certain ammunition sub-components also use precision cold-formed parts with special requirements for inclusion grade and surface quality.