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Can your universal blades cut stainless steel, mild steel, aluminum, and copper with just one single set?
Yes, our H13 and D2 blades can handle different materials without changing the blade itself. Just remember: when you switch materials, you must readjust the blade gap. That's the one thing that ensures a clean cut and protects the edge.
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What common shop floor mistakes shorten industrial blade service life drastically?
The top five blade killers are:
Incorrect blade gap (clearance) settings;
Uneven or incorrectly torqued locking bolts;
Overloading the machine beyond its rated capacity;
Feeding material contaminated with hidden hard metal or slag;
Insufficient daily lubrication and cleaning.
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How do I calculate the mathematically correct blade clearance gap for my cutting thickness?
Enforce the following standardized industrial clearance percentages based on your workpiece thickness: 5% to 8% for mild carbon steel, 3% to 5% for aluminum, and 8% to 10% for stainless steel to overcome intense work-hardening. ALAS can provide a customized clearance optimization chart tailored to your specific material range.
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Should I choose solid steel blades or Carbide-Tipped (TCT) blades for my production line?
Solid alloy steel (D2/H13/6CrW2Si) is highly cost-effective, versatile, and easily ground for general carbon steel cutting workshop applications. Carbide-Tipped (TCT) blades last 3 to 5 times longer when processing hard rebar, high-tensile steel, and highly abrasive materials. They are engineered to sustain razor-sharpness under high-volume, automated continuous production.
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What is the structural difference between DC53 and D2 shear blade materials?
DC53 delivers a massive upgrade in fracture toughness, drastically reducing the risk of sudden edge cracking compared to D2 under high-impact, intermittent cutting conditions. While its pure abrasive wear resistance is slightly lower than D2, DC53 uniformly distributes carbides to eliminate stress concentrations, making it the premier choice for easy-chipping working environments.
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What is the difference between H13 and 6CrW2Si shear blades?
6CrW2Si is a tough cold‑work steel built for impact. It’s the go‑to for mechanical flywheel shears—where the shock load is sudden and heavy—because it absorbs that kind of punishment without cracking.
H13 (1.2344), on the other hand, is a hot‑work steel. It stays hard at elevated temperatures, so it’s what we recommend for hydraulic shears, hot cutting, and thick plate work—basically any job where friction heat builds up fast.
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What is the comprehensive metallurgical difference between D2 and SKD11 steel for industrial shear blades?
D2 and SKD11 are essentially the same grade—chemically they're almost identical. What sets ALAS apart is our tighter control over trace elements during melting and forging. While both grades share a nearly identical standard chemical specification, ALAS differentiates them through micro-alloying optimizations. Our D2 line is enhanced for maximum carbide high-density distribution, which gives it slightly better wear resistance, making it a good fit for thin stainless steel shearing. Our SKD11, on the other hand, is refined for a finer grain structure, which translates to better impact toughness—ideal for high‑frequency, intermittent cutting operations.
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How many times can ALAS shearing blades be resharpened after they become dull?
It depends strictly on your initial blade thickness and the effective depth of the hardened layer. Because ALAS implements a deep, computer-controlled vacuum heat treatment protocol, our tools secure a 100% uniform hardness matrix from the core to the working surface. This enables the knives to undergo multiple precision regrinds (typically removing 0.1 mm to 0.2 mm per pass under flood coolant) without experiencing any drop in pure wear resistance or mechanical performance.
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How long do industrial metal sheet shearing blades last under normal shop floor operations?
The operational service life depends strictly on workpiece hardness, cutting frequency, and blade material. With routine edge lubrication, clean feedstock — free from hidden hard contaminants — and proper daily clearance calibration, total tool life can range from several months to several years of stable, clean shearing performance.
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What are the common raw material grades utilized for ALAS metal shearing and scrap recycling blades?
We maintain a robust and certified warehouse inventory of premium global tool steels and alloy steels. We dynamically match these chemistries to your precise cutting tonnage, edge profile, and feedstock tensile properties. Our standard availability includes: 9CrSi, Cr12MoV, SKD11, D2, H13, H13K, LD, and DC53.
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Material Selection Guide: When should I choose D2 versus H13 steel for ALAS shear blades?
The optimal choice depends strictly on your workpiece thickness, cutting temperature, and impact loads:
Choose D2: Best suited for shearing stainless steel sheets and light‑to‑medium carbon steel plates under 4 mm. D2 contains high carbon and chromium content, forming massive, hard chromium carbides that deliver superior edge retention and prolonged resistance to dulling.
Choose H13 (1.2344) or 6CrW2Si: Designed for thick steel plate shearing, heavy scrap processing, and high‑impact conditions. These shock‑resistant hot‑work tool steels offer extreme fracture toughness to absorb severe dynamic loads without cracking.
For D2: Ideal for punch press operations and slitting lines where continuous friction and abrasive wear dominate.
For H13/6CrW2Si: Preferred for guillotine shears and scrap shredders where sudden shock and heavy section thickness are the primary failure risks.
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Do you supply matching high-strength bolts, knife holders, and spare accessories for shredder rotors?
Yes. We manufacture and supply Grade 12.9 high-tensile bolts, integrated knife seats/holders, pin shafts, and specialized locking components. These can be fabricated as a one-stop, fully matched spare parts kit alongside your shredder blades to ensure seamless mechanical compatibility.
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What precision tolerances do you guarantee for high-precision slitting line tools and spacer setups?
For high-precision slitting applications (such as battery foil, silicon steel, or thin metal strip slitting), we achieve ultra-tight tolerances. Our premium slitter blades and spacers maintain a thickness tolerance within ±0.001 mm (1 micron), with parallelism and flatness controlled within 0.002 mm. This prevents axial runout and ensures burr-free cutting performance.
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Do you supply spacer sleeves, separator rings, and lock sleeves matching longitudinal slitter line blades?
Yes, we provide full, turnkey supporting accessories. We custom-manufacture internal bores (ID), outer diameters (OD), thicknesses, and precise geometric tolerances to perfectly match your specific slitter assembly and slitting line requirements.
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What is your maximum and minimum customized size range for blades and molds?
We offer extensive custom machining capabilities, ranging from micro-precision slitter knives under 20 mm up to heavy-duty shear blades exceeding 6000 mm in length. For ultra-large or non-standard special dimensions, our technical engineering team will evaluate manufacturing feasibility on an individual, case-by-case basis.
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What causes inconsistent hardness on finished blades, and how does ALAS prevent it?
Inconsistent hardness in the industrial knife industry is typically caused by unstable heating temperatures, uneven cooling rates during quenching, insufficient tempering cycles, or raw material carbide segregation.To guarantee absolute consistency, ALAS implements a rigorous full-process digital temperature monitoring system coupled with a triple-tempering protocol. This guarantees that our finished blades maintain an extremely tight uniform hardness deviation within ±1 to ±2 HRC across the entire batch.
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What are Nitriding and TiN coatings, and what specific benefits do they bring to blades?
Nitriding Treatment: This process diffuses nitrogen into the steel surface to form an ultra-hard, wear-resistant layer. It is engineered to exponentially extend blade service life in highly abrasive cutting applications.
TiN (Titanium Nitride) Coating: This premium PVD surface coating dramatically minimizes the coefficient of friction, effectively preventing workpiece adhesion (galling). It ensures cleaner cuts with fewer burrs and offers superior corrosion resistance, making it ideal for high-speed, continuous industrial shearing scenarios.
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What is vacuum heat treatment, and why do you apply it to your cutting blades?
Vacuum heat treatment is an advanced thermal processing technique conducted in an oxygen-free, high-vacuum furnace. Compared to conventional atmosphere furnaces, vacuum quenching completely eliminates surface oxidation and decarburization. This process ensures uniform core-to-surface hardness, drastically minimizes internal residual stresses, and significantly reduces the risks of micro-cracking, edge chipping, and premature wear during heavy-duty operations
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Are ALAS blades and dies a good alternative to Amada, Wila, or Baucor original parts?
Yes, they are an excellent premium alternative. Our dimensional tolerances and heat treatment processes fully match OEM standards. Choosing ALAS offers you shorter lead times and a significantly better Total Cost of Ownership (TCO) for mass replacement orders.
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What information do I need to provide for a custom blade quotation?
To provide an accurate quote, please supply the following:
Overall Dimensions: Length × Width × Thickness (L×W×T)
Hole Details: Position, spacing, and diameter
Technical Specs: Required material and hardness
Application Context: Machine brand/model and the specific material to be cut
Order Details: Target annual consumption quantity
Reference Files: Technical drawings, sketches, or clear sample photos
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Can you print the customer's brand logo or part number on the blades/dies?
Yes. Custom laser marking for customer part numbers, brand logos, and dimensional specifications is available for bulk orders. Please consult our sales team for specific minimum quantity requirements.
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Can you offer a Material Test Report (MTR) and hardness test certificate?
Yes. A full Mill Test Certificate (MTC), hardness inspection report, and dimensional inspection report can be supplied upon request along with the shipping documents.
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What is your product warranty policy for cutting blades and press brake dies?
We guarantee that all products are free from manufacturing defects in raw materials and heat treatment for 3 months from the shipment date. Please note that this warranty excludes damage caused by improper installation, overloaded operation, normal wear and tear, or misuse.
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Does ALAS provide free or paid samples for testing?
We offer small trial samples for quality evaluation. While initial sample costs and courier freight apply, these charges can be fully deducted from your subsequent formal bulk order.
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Can you customize blades, dies, and related accessories?
Yes, absolutely. Simply send us your technical drawings or detailed dimensions (length × width × thickness + hole size/spacing). We can customize all types of non-standard blades and dies according to your specific requirements for drawing, size, material, and hardness.
