Custom Metal Shear Blades: Precision Engineering & Material Guide
Not every shearing task is standard. If you work with special alloys, unusual plate thicknesses, or old machinery, off-the-shelf blades won’t work. Custom metal shear blades bridge the gap between your unique needs and high-performance cutting.
ALAS custom blades are made from top materials like 9CrSi, 6CrW2Si, Cr12MoV, H13, H13K, and LD. They have a rectangular cross-section and hardness of HRC50–62, delivering precise, burr-free cuts. We can customize them to your drawings or samples.
Why Custom Blades Boost Efficiency
Standard blades often fall short in industrial use. You need custom blades if you have:
At Alas Machinery, we don’t just sell parts—we create tailored solutions for your shearing challenges.
Precision Engineering: From Blueprint to Blade
We use your technical drawings or samples to make sure every custom blade is perfect. Our focus is on two key areas:
Perfect Fit
Our CNC machining ensures bolt holes, countersinks, and blade angles are accurate to the micron. This means a seamless, drop-in replacement—no modifications, no downtime.
Material Optimization
We pick the best material for your needs to cut costs and extend blade life. Below is a clear guide to our core materials, including their chemistry, performance, and uses.
ALAS Custom Blade Materials Overview
We use 7 main materials for custom blades. Each has unique chemistry, performance, and ideal uses:
1. 9CrSi (Alloy Tool Steel)
Chemical Composition: C 0.85–0.95%, Cr 1.20–1.50%, Si 1.20–1.60%, Mn ≤0.40%, P ≤0.030%, S ≤0.030%
Key Performance: High hardness, good wear resistance, small quenching deformation, cost-effective
Hardness: HRC 58–60 (after heat treatment)
Uses: Thin cold-rolled plate, galvanized plate, aluminum, copper, plastic, leather
2. 6CrW2Si (Alloy Tool Steel)
Chemical Composition: C 0.55–0.65%, Cr 1.20–1.50%, W 2.00–2.50%, Si 0.80–1.10%, Mn ≤0.40%, P ≤0.030%, S ≤0.030%
Key Performance: Excellent red hardness (stays hard at high temps), high wear resistance, better than 9CrSi
Hardness: HRC 60–62 (after heat treatment)
Uses: Hot shearing, light stainless steel, medium-strength steel
3. Cr12MoV/SKD-11 (High Carbon High Chromium Steel)
Chemical Composition: C 1.40–1.60%, Cr 11.50–13.00%, Mo 0.40–0.60%, V 0.15–0.30%, Mn ≤0.40%, Si ≤0.40%, P ≤0.030%, S ≤0.030%
Key Performance: Great wear resistance, easy to harden, small heat treatment deformation, long life
Hardness: HRC 58–60 (after heat treatment)
Uses: Stainless steel, silicon steel, high-strength steel, Q235, aluminum, copper, low-carbon steel
4. H13 (4Cr5MoSiV1) (Hot Work Die Steel)
Chemical Composition: C 0.32–0.45%, Cr 4.75–5.50%, Mo 1.10–1.75%, Si 0.80–1.20%, V 0.80–1.20%, Mn ≤0.40%, P ≤0.030%, S ≤0.030%
Key Performance: Excellent high-temperature strength, good impact toughness, resists thermal fatigue, no easy softening
Hardness: HRC 50–55 (after heat treatment)
Uses: Hot-sheared hot-rolled plate, thick plate, scrap metal, stainless steel thick plate, high-strength alloy steel
5. D2 (Cr12Mo1V1) (High Carbon High Chromium Steel)
Chemical Composition: C 1.40–1.60%, Cr 11.00–13.00%, Mo 0.70–1.20%, V 0.50–1.00%, Mn ≤0.60%, Si ≤0.60%, P ≤0.030%, S ≤0.030%
Key Performance: High strength, great wear resistance, strong anti-deformation, good chipping resistance
Hardness: HRC 58–62 (after heat treatment)
Uses: Q195/Q235/45#/40Cr steel, aluminum, copper, brass, plastic, rubber, paper, composite materials
6. LD (7Cr7Mo2V2Si) (Cold Work Die Steel)
Chemical Composition: C 0.65–0.75%, Cr 6.50–7.50%, Mo 1.80–2.20%, V 1.80–2.20%, Si 0.80–1.20%, Mn ≤0.50%, P ≤0.030%, S ≤0.030%
Key Performance: High strength, excellent toughness, good wear resistance, strong chipping resistance, fine grain structure
Hardness: HRC 58–62 (after heat treatment)
Uses: High-strength steel, thick plate, stainless steel, hard-to-shear metals (large hydraulic/CNC shears)
7. Powder Metallurgy Steel (e.g., ASP23, ASP60)
Chemical Composition (ASP23): C 1.28%, Cr 4.20%, Mo 5.00%, V 3.10%, W 6.50%
Key Performance: Ultra-high hardness, extremely long life, uniform structure, stable performance
Hardness: HRC 62–65+ (after heat treatment)
Uses: High-end composite plate, wear-resistant steel, high-precision shearing (high wear/long life needs)
Quick Material Selection Guide
Pick the right material for your shearing task:
Ordinary carbon steel (Q195, Q235): 9CrSi, Cr12MoV (cost-effective)
Medium-low hardness steel/aluminum/copper: SKD11, D2 (wear-resistant, long life)
Light stainless steel/medium-strength steel: SKD11, D2 (balanced performance)
Thick stainless steel/high-strength alloy steel: H13, LD (tough, chip-resistant)
Hot shearing/high-temperature tasks: H13, H13K (heat-resistant, anti-fatigue)
High-precision/heavy-duty shearing: Powder metallurgy steel (ASP23/ASP60) (ultra-wear-resistant, long life)
Vacuum Heat Treatment: Longer Blade Life
Every custom blade gets full-body vacuum heat treatment. This process stabilizes the entire metal structure, preventing warping and internal cracks—critical for custom blades with complex shapes. It maximizes material performance for consistent, reliable cuts.
Factory-Direct, Maintenance-Free Blades
Alas Machinery is a dedicated manufacturing facility. Our custom blades fit perfectly and last longer than standard parts. This means less maintenance, less downtime, and more productivity for your facility.
Key Notes for Custom Blades
Hardness isn’t everything—balance hardness and toughness. Too hard = chipping; too soft = dulling. We help you choose the right one.
Heat treatment matters. High-quality materials need professional quenching (like our vacuum heat treatment) to work their best.
For sticky materials (stainless steel, titanium, aluminum, copper): Choose Cr12MoV or SKD11 to prevent sticking and chipping.