Industrial Metal Shear Blades & Custom Sheet Metal Shear Knives

Nanjing Alas metal shear blades are premium industrial-grade guillotine cutting tools engineered for high-cycle sheet metal shearing operations. Precision-manufactured in our ISO 9001:2015 certified facility from elite tool steels—including 9CrSi, Cr12MoV, H13, and D2—our metal shear blades deliver a perfectly uniform hardness of HRC 50–62 and grinding tolerances strictly controlled within ±0.02 mm. They are explicitly developed to eliminate recurring shop-floor headaches like severe burr formation, premature edge chipping, and hydraulic stress—issues that typically force unplanned downtime and blade rotation every 2 to 6 months. As trusted heavy-duty metal shear blade manufacturers, we help steel service centers and metal fabricators protect machine bearings and minimize total operational expenditure.

Advanced Manufacturing Processes Ensuring Shear Blade Precision & Longevity

All Nanjing Alas metal shear blades undergo a dual-stage stabilization process to guarantee exceptional dimensional repeatability and prolonged edge life: proprietary computer-controlled vacuum heat treatment and ultra-precision cross-grinding. Our vacuum quenching eliminates thermal soft spots and structural micro-voids, maintaining absolute straightness even for customized, single-section metal shear blades up to 4 meters in length. Following thermal processing, every blade edge is CNC-ground to a flawless finish. This optimal edge geometry drastically reduces shearing friction,

slashes machine amperage draw, and ensures clean, burr-free separations across carbon steel, stainless steel, and non-ferrous plates. For maximum ROI, our standard profiles feature dual-edge or four-edge reversible configurations, doubling or quadrupling your working cycles before re-sharpening is required.

Premium Steel Grades Formulated for Diverse Shearing Conditions

• 9CrSi (1.2108): HRC 58–60, cost-effective general-purpose steel, ideal for shearing thin galvanized steel, aluminum, copper, plastic, leather, and cold-rolled sheets under 6mm

• 6CrW2Si (1.2555): HRC 60–62, tungsten-silicon alloyed steel with excellent heat and wear resistance, suitable for hot shearing, light stainless steel, and medium-strength steel processing

• Cr12MoV / SKD11 (1.2601): HRC 58–60, high-wear-resistance steel with excellent anti-galling properties and stable hardening performance. Specially optimized to resist material adhesion and edge buildup caused by stainless steel’s high surface viscosity, it remains sharp and burr-free during continuous stainless steel and full-range Q235 carbon steel shearing, avoiding frequent blade dulling.

• D2 / Cr12Mo1V1 (1.2379): HRC 58–62, anti-deformation and anti-chipping properties, applicable for medium-low hardness alloy steel, aluminum, brass, rubber, and composite materials

• H13 / 4Cr5MoSiV1 (1.2344): HRC 50–55, features outstanding high-temperature fatigue resistance and thermal stability. It effectively withstands continuous high-heat working conditions generated by hot-rolled plates and hot strip shearing, preventing edge softening and thermal wear under long-term high-temperature friction, ideal for thick stainless steel and hot processing scenarios.

• LD (7Cr7Mo2V2Si): HRC 58–62, ultra-high toughness structural tool steel designed specifically for heavy-shock localized impact working conditions. It resists instantaneous cracking and edge chipping under the high tensile strength of thick high-strength steel plates, outperforming ordinary tool steels in heavy-duty shearing and long-cycle high-load production.

• Powder Metallurgy Steel (ASP23/ASP60): HRC 62–65+, ultra-high hardness and extreme wear resistance, used for high-precision and heavy-duty long-cycle shearing scenarios

International Tool Steel Grade Cross-Reference Table

Global Tool Steel Grade Cross-Reference Table

Standard Dimensions & Customization Capabilities of Metal Shear Blades

Our in-stock standard tooling covers light, medium, and heavy-duty shearing scenarios, achieving direct OEM replacement for most industrial shearing machines without on-site modification. All dimensional data complies with universal industrial standards:

170×30×10mm, 205×30×10mm, 350×30×10mm

Medium Standard Sizes (General Sheet Metal Fabrication)

508×70×22mm, 508×80×25mm, 1025×63×16mm, 1025×80×20mm, 1025×100×25mm, 1100×64×16mm, 1100×80×20mm, 1100×100×25mm

Heavy-Duty Large Sizes (Thick Plate & Industrial Shearing)

1300×63×16mm, 1300×63×18mm, 1300×80×20mm, 1300×80×25mm, 2030×80×25mm, 3200×100×30mm

We support custom fabrication with a 1-piece minimum order, while standard tooling is available for fast 3-day shipping. Manufactured from premium 55CrSi, 9CrSi, 6CrW2Si, Cr12MoV, and H13 grades, our products adapt to diverse cutting loads. Backed by a 500,000-piece annual output and 50 tons of raw steel inventory, we deliver stable bulk order fulfillment. Send us your drawings now to get a tailored shearing tooling quotation.

Optimized Hardness Matching to Reduce Total Cost of Ownership (TCO)

Scientific Blade Clearance Calibration for Burr-Free Cutting & Extended Service Life

OEM-Compatible Replacement Blades for Global Shearing Machinery

Frequently Asked Questions (FAQ)

We stand firmly behind our industrial tooling with a 12-month manufacturer warranty covering all factory defects under standard operating conditions. If premature cracking, micro-chipping, or abnormal wear occurs due to material or machining errors, we provide free re-production and expedited DHL/FedEx air-freight replacement at our expense, eliminating long ocean shipping delays and extra logistics costs. Warranty excludes damage caused by incorrect clearance settings, machine overload, or improper manual operation.

Conclusion: Engineering Profitability into Every Cut

Whether your upcoming project demands standard replacement stock or highly specialized, custom-tailored geometries built from international equivalent steel grades, our R&D engineering team is standing by to deliver targeted solutions within 24 hours.

1. Blade Specifications: Length / Width / Thickness

2. Processing Material: Carbon Steel / Stainless Steel / High-Strength Steel / Others

3. Working Thickness Range: ____ mm

4. Attachment: Upload PDF/DWG/STEP Drawing Files

5. Your Email & Company Name

Fill in the simple information above and submit your project requirements. Our professional engineering team will deliver a targeted quotation and customized technical solution within 24 hours, including free drawing optimization and parameter matching services.