The Toughness Factor: Choosing the Best Blades for Scrap Metal Shearing
Introduction
In the scrap recycling industry, shears are key for processing scrap steel, rebar, and profiles. Scrap metal shearing blades work in harsh conditions: high-frequency impact, unevenly hard materials, and extreme pressure. Tough blades that "handle hard materials without chipping" cut recycling costs and protect hydraulic scrap shear parts. This guide helps you choose the right blades for your recycling yard equipment, including rebar cutting blades and steel beam shearing blades.
1. Material Selection: Prioritize Shock Resistance
Scrap metal shearing needs blades that are hard but tough. Below are the best blade materials, including their chemical composition, performance, and impact on scrap shearing:
1.1 H13 (4Cr5MoSiV1)
Chemical Composition: 4% Chromium (Cr), 5% Molybdenum (Mo), 1% Silicon (Si), 1% Vanadium (V), and iron (Fe) as the base metal.
Performance: Good thermal stability, strong shock resistance, and high toughness. Hardness after heat treatment: HRC 50-55. It stays stable under high temperature and pressure, without softening or deformation.
Impact: The "all-rounder" for scrap yards. Ideal for heavy scrap steel and thick materials. Works well with gantry shears and alligator shears. Reduces blade replacement and protects hydraulic scrap shear parts.
1.2 6CrW2Si
Chemical Composition: 6CrW2Si: 6% Chromium (Cr), 2% Tungsten (W), 1% Silicon (Si); S7: Mainly Chromium (Cr), Molybdenum (Mo), and Vanadium (V).
Performance: Designed to resist chipping. High toughness to handle high-frequency impact. Hardness balances strength and flexibility, preventing edge breakage.
Impact: Perfect for hard scrap (spring steel, old railway rails). Reduces blade damage and lowers maintenance costs for recycling yard equipment.
1.3 SKD11
Chemical Composition: High carbon (1.5-2.0%) and high chromium (11-13%), plus small amounts of Molybdenum (Mo) and Vanadium (V).
Performance: Excellent wear resistance. Hardness after heat treatment: HRC 58-62. Good toughness for thin but hard scrap.
Impact: Ideal for thin, hard scrap. Long service life, suitable for small to medium scrap yards with low to medium shear intensity.
2. Machine Compatibility
Our blades fit all major recycling equipment, ensuring 100% compatibility:
Alligator Shears: For small to medium scrap yards. Blades handle frequent impact, perfect for rebar cutting blades and small scrap steel.
Gantry Shears: Heavy-duty blades for long, thick scrap steel and steel beams. Matches high-load operation, ideal for steel beam shearing.
Mobile Shears: Fits excavator attachments. Blades handle complex on-site conditions, processing scrap anywhere to cut transport costs.
3. Core Processing Technology
Vacuum Heat Treatment: Ensures even hardness inside and out. Prevents early breakage from internal stress, boosts toughness and wear resistance, and reduces hydraulic scrap shear parts replacement.
Precision Bolt Hole Alignment: Tight tolerance ensures perfect bolt alignment. Prevents bolt loosening or breakage during high-pressure shearing, protecting equipment.
Four-Sided Usability: Flip blades 4 times for 4x longer service life. Cuts replacement costs and recycling costs per ton.
Conclusion
High-quality scrap shearing knives boost shear force and protect hydraulic scrap shear parts. We offer professional material advice based on your equipment tonnage and scrap type. Whether you need rebar cutting blades, steel beam shearing blades, or other scrap blades, we provide custom solutions to maximize your recycling benefits.