GCr15 Cold Rolled Steel Strip — Recommended for Heavy-Duty Wear-Resistant Circular Saw Blades and High-Precision Wear-Resistant Substrates
GCr15 cold rolled steel strip features fine and uniform microstructure, high surface flatness, and stable, excellent laser cutting performance. It is widely used for manufacturing heavy-duty wear-resistant circular saw blades and high-precision wear-resistant saw blade substrates. The product undergoes precision cold rolling and spheroidizing annealing, offering high dimensional accuracy and excellent surface finish. With high chromium content, its hardenability, wear resistance, and compressive fatigue performance far exceed those of ordinary carbon steels, making it a premium material for saw blade substrates operating under harsh conditions and heavy loads.
Chemical Composition & Standards
Product Grade: GCr15 | Standard: GB/T 18254 / Longsheng Sheet Co., Ltd. Enterprise Standard
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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0.95~1.05
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0.15~0.35
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0.25~0.45
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≤0.025
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≤0.025
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1.40~1.65
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≤0.30
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GCr15 is a high-carbon chromium bearing steel with relatively high carbon content, combined with high chromium to form a large amount of hard carbides, significantly enhancing hardenability, hardness, and wear resistance. Strict limits on sulfur and phosphorus impurities ensure high steel purity, minimal dimensional distortion, and strong stability during heat treatment, making it suitable for saw blades and wear-resistant components operating under long-term high loads and severe wear conditions.
Product Performance
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Performance Indicator
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Value Range
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Main Finished Thickness (mm)
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1.0 ~ 4.3
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Yield Strength (MPa)
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460 ~ 700
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Tensile Strength (MPa)
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560 ~ 810
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Elongation After Fracture (%)
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≥5
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Hardness (HV)
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175 ~ 210
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The product features uniform and regular metallographic structure, with smooth and flat surfaces compatible with laser cutting processes, producing clean cuts with minimal burrs. The annealed hardness is moderate, facilitating convenient and stable stamping, bending, and precision grinding. After quenching and tempering, it achieves high hardness and excellent wear resistance, with outstanding fatigue and impact resistance. Saw blades made from this material resist wear, chipping, and deformation during long-term high-speed heavy-duty cutting, ensuring extended service life.
Product Applications
Circular saw blades, heavy-duty wear-resistant saw blade substrates, laser cutting materials, heavy-duty cutting tools, precision wear-resistant dies, bearing shims, high-strength wear-resistant spring plates
Supply Specifications
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Item
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Parameter Details
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Strip Steel Specification
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(0.2-5.0) X (700-1250)mm
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Max Coil Weight
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27.6 Tons
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Coil Inner Diameter
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Φ508mm / Φ610mm
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Coil Outer Diameter
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Φ900~2000mm
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Oil Coating Type
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Oil Coating
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Surface Treatment
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Bright / Matte / Customized
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