Mobile Scrap Shear Blades

Heavy-Duty Mobile Scrap Shear Blades: Maximizing Cutting Power in Metal Recycling

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Eagle Shear Replacement Blades & Related Products

Eagle shear replacement blades

Hydraulic scrap shear knives

Demolition shear blades for excavators

Replacement cutting tools for mobile shears

Double-cylinder scissors blades

Hydraulic scissors blades for excavators

Core Shear Blade Components

Upper Primary Blade

Upper Secondary Blade

Piercing Tips Blade

Guide Blade

Cross Blade

Lower Secondary Blade

Lower Primary Blade

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Blade Materials: H13 & H13K

H13 (4Cr5MoSiV1)

Material Type

Key Features

• Good strength at high temperatures

• Resists wear from heat (thermal fatigue)

• Tough enough to handle impacts

• Strong core toughness

Best For Cutting

• Hot-rolled plate, iron plate, medium and thick plate

• Scrap metal, hot-sheared strip steel

• High-strength alloy steel, stainless steel thick plate

• Ultra-thick steel plates (≥30mm), high-hardness round steel

• Ordinary alloy steel, thick-walled welded pipes

Performance & Advantages

• Hardness: HRC52-55 after heat treatment

• Works for alligator shears ≥160T

• Great for most heavy-duty mobile shear uses

• Resists chipping and breaking during use

• Affordable and easy to use (mature process)

H13K (Modified H13)

Material Type

Key Features

• Keeps H13’s great impact resistance

• Better core toughness than standard H13

• More stable at high temperatures

• Resists fatigue better

• Easier to harden (better hardenability)

Best For Cutting

• Extra-thick steel plates (≥40mm)

• Heavy alloy steel, thick-walled seamless pipes

• Large structural steel

• High-pressure, high-impact materials

• Heavy continuous shearing in scrap yards

Performance & Advantages

• Works for ultra-large alligator shears ≥180T

• More resistant to impact and fatigue than H13

• 20%-30% longer service life than H13 in heavy use

• Reduces blade replacements and downtime

• Ideal for high-demand Hydraulic Shear Knives

Blade Strengthening Process

Basic Heat Treatment Steps

• Vacuum heat treatment: Replaces regular air quenching to reduce surface oxidation and decarburization. This ensures uniform hardness and keeps Excavator Scrap Shear Blades and Hydraulic Shear Knives durable.

• Low-temperature tempering: Done right after quenching (180-220℃) to remove internal stress. This prevents blade deformation and cracking, and keeps the material’s core hardness and toughness stable—even in tough shearing conditions.

How To Choose The Right Blade Material

• Most crocodile shear blades and scrap shear blades use H13—it works for most heavy-duty jobs.

• Use H13K if you have complex scrap, frequent high-impact cutting, or heavy workloads. It’s more durable and lasts longer.

• For custom needs or higher requirements, contact us to discuss material upgrades that match your Scrap Recycling Equipment Parts and operations.

Key Tips For Selecting High-Performance Blades

• Mobile scrap shears handle unpredictable materials (like high-tensile rebar or thick-walled pipes)—so toughness is just as important as hardness.

• Blade material and heat treatment determine your profit per ton, no matter if you use a 20-ton or 50-ton excavator.

• High-quality Excavator Scrap Shear Blades and Hydraulic Shear Knives (made from H13/H13K with precise heat treatment) cut downtime and operational costs, and boost your bottom line.

How High-Quality Blades Reduce Downtime & Costs

• Less downtime: High-quality blades (H13/H13K with advanced heat treatment) resist chipping, breaking, and wear—so you replace them less often.

• Lower labor costs: Fewer blade changes mean less time and labor spent stopping operations.

• Protects equipment: Reduces damage to expensive hydraulic shears (a key part of your Scrap Recycling Equipment Parts).

• Faster work: Better performance means more efficient cutting and higher daily tonnage.

• No hidden costs: Eliminates extra expenses from low-quality blades (like frequent repairs, lost productivity, and early equipment wear).