C15E is a high-quality carbon structural steel complying with international standards such as EN 10083-3. With balanced mechanical properties, precise chemical composition control, and wide applicability, it has become a preferred material integrating reliability and practicality in industrial production.
Produced through standardized smelting and rigorous testing (including mechanical property testing and chemical composition spectral analysis), this steel grade ensures the uniformity of chemical composition and stability of performance, eliminating quality risks from the source. Its composition design focuses on "balanced performance": carbon content of 0.12%-0.18% lays the foundation for basic strength; silicon content ≤0.40% enhances strength and oxidation resistance; manganese content of 0.30%-0.60% optimizes toughness and machinability; impurities such as phosphorus and sulfur are controlled ≤0.035% to avoid embrittlement. Its core advantage lies in the balance of mechanical properties—moderate yield strength, excellent elongation and impact toughness, resistance to brittle fracture during processing, minimal performance fluctuation, suitability for mass production, and good processing characteristics including cold heading, cutting, and welding.
C15E shares similar core performance with other low-carbon carbon steels of the same type (1015, Grade 15 Steel, S15C), mainly due to their consistent carbon content range (all 0.12%-0.18%). However, C15E has differentiated advantages in composition control and stability. Notably, C15E features stricter control over impurities (phosphorus and sulfur), stronger performance stability, and compliance with unified international standards, making it more suitable for high-end manufacturing and international procurement scenarios. Although 1015 Steel (American Standard) has the same carbon content, it offers slightly superior toughness but lower strength, focusing on general mechanical processing applications. Grade 15 Steel (Chinese Standard) has relatively lower precision in composition control and slightly greater performance fluctuation, but excels in cost-effectiveness, making it ideal for producing ordinary structural components where cost sensitivity is high and precision requirements are moderate. S15C (Japanese Standard) exhibits overall performance close to C15E but with minor differences in impurity control standards, being more suitable for supporting Japanese-funded enterprises and regional supply chain scenarios. For material selection, match requirements precisely: prioritize C15E for mass production scenarios demanding stable performance and compliance with international procurement standards; opt for 1015 Steel for general mechanical components requiring high toughness; choose Grade 15 Steel for cost-sensitive ordinary structural components; and consider S15C for Japanese-funded enterprise supporting or region-specific needs.
Leveraging its balanced performance, reliable processing characteristics, and differentiated advantages over similar materials, C15E is widely applied across multiple industrial sectors. In the machinery manufacturing industry, it is commonly used to produce general mechanical parts such as shafts, gear blanks, connecting rods, nuts, and bolts with moderate strength requirements. In the construction hardware field, it can be fabricated into precision structural components including door and window frames, small structural connectors, and hardware fasteners. Thanks to its excellent cold heading performance, it serves as a core raw material for manufacturing standard parts like bolts, screws, and rivets. Additionally, it is suitable for producing lightly loaded stamping parts and welded components, adapting to specialized scenarios such as auto parts and instrument enclosures.
