







Expert Insight into the Application of Concrete Nail
Cement steel nails are meticulously crafted fasteners, designed with precision for substrates possessing high hardness such as concrete, brick walls, and stone. Through advanced cold heading forming and rigorous quenching hardening processes, these nails achieve remarkable strength and superior impact resistance. As a result, they find extensive applications across construction, decoration, and various industrial sectors. Below, we delve into a detailed explanation of their core features, technical parameters, typical application scenarios, and operational specifications:
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1, Core Structure and Material Characteristics
1. Material and Heat Treatment
Crafted from robust medium carbon steel (such as C45 steel) or resilient alloy steel (such as 40Cr), featuring a precise carbon content of 0.42% -0.50%, these materials ensure the essential foundational strength required for demanding applications.
• Heat Treatment Process:
• Comprehensive Quenching: The nails are heated to an optimal 850-900 ºC and swiftly cooled to achieve an impressive surface hardness of HRC52-58 (Rockwell hardness), while maintaining a bending strength of ≥ 1200MPa.
Tempering and tempering: A secondary heating process to 200-300 ºC effectively eliminates internal stress, enhancing toughness and preventing brittle fracture, thus ensuring long-term reliability.
2. Structural Optimization Design
• Nail Tip:
Ingeniously designed with a triangular pyramid shape featuring a sharp tip angle of 30°, combined with a high-frequency quenching layer (hardness HRC60+), this design reduces penetration resistance and significantly boosts drilling efficiency.
Spiral Groove Engraving: Select models (such as textured cement nails) incorporate spiral grooves on the nail body via rolling technology, enhancing mechanical bite with substrates and increasing pull-out resistance by 30%.
• Nail Cap:
Butterfly Shaped/Hexagonal Head: Designed to expand the stress area, it effectively disperses hammering stress and prevents the nail cap from embedding into surfaces like gypsum board.
Anti-Slip Rolling Pattern: The intricately designed diamond rolling patterns on the hat top work harmoniously with a rubber hammer to minimize hand slippage risk during application.
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2, Technical Parameters and Performance Comparison
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An In-Depth Comparison of the Advantages of Cement Steel Nails Versus Ordinary Round Nails and Expansion Bolts, Including Detailed Parameter Analysis
Perfect for substrate concrete, brick walls, granite wood, thin steel plates, concrete, and hollow bricks. These nails allow for direct injection into high-hardness substrates without the need for pre-drilling.
With a tensile strength of ≥ 800N/mm², surpassing ordinary options (≤ 400N/mm²), and matching the strength of expansion bolts (usually 500-1000N/mm²), these nails offer enhanced installation efficiency, achieving a fivefold increase.
Shear Strength: These nails boast a shear strength of ≥ 600N/mm², outperforming ordinary options (≤ 300N/mm²), and are specifically designed for scenarios with lateral stress, offering unparalleled shear performance.
Temperature Resistance Range: From -40 ºC to 150 ºC, you benefit from superior resistance compared to ordinary nails, making them ideal for challenging outdoor and industrial environments.
Economically Priced: With a unit cost of 0.1-0.3 yuan per nail, significantly lower than expansion bolts (0.5-2.0 yuan per set), these nails offer extraordinary cost-effectiveness, making them a wise investment.