Phone:
86-15852949220
NANJING ALAS INTERNATIONAL CO., LTD
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Nanjing, China
T/T, Money Gram
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Hardness: Resists wear and bending
Toughness: Handles impact without chipping
Top-quality blades make burr-free cuts—this is the main sign of a good blade.
Chemical Composition (Typical): C 0.85-0.95%, Cr 0.90-1.20%, Si 1.20-1.60%, Mn ≤0.40%, P ≤0.030%, S ≤0.030%
How Components Help: Cr boosts hardness and wear resistance; Si makes hardening easier and improves toughness; C provides basic cutting hardness.
Best for: Thin cold-rolled, galvanized, aluminum, copper plates; plastic, leather
Key Traits: Hard, wear-resistant, balanced, good value
Hardness: HRC 58-60 (after heat treatment)
Chemical Composition (Typical): C 1.40-1.60%, Cr 11.00-13.00%, Mo 0.40-0.60%, V 0.15-0.30%, Mn ≤0.40%, Si ≤0.40%, P ≤0.030%, S ≤0.030%
How Components Help: High C + Cr = great wear resistance and hardening; Mo reduces bending during heat treatment; V makes the metal grain finer, improving toughness and preventing chipping.
Best for: Stainless steel, silicon steel, high-strength steel, Q235, aluminum, copper plates
Key Traits: Very wear-resistant, tough, little bending during heat treatment, long life
Hardness: HRC 58-60 (after heat treatment)
Chemical Composition (Typical): C 0.55-0.65%, Cr 1.00-1.30%, W 2.00-2.50%, Si 0.60-0.90%, Mn ≤0.40%, P ≤0.030%, S ≤0.030%
How Components Help: W keeps hardness at high temps and improves wear resistance; Cr makes hardening easier; Si boosts toughness and prevents chipping.
Best for: Hot shearing, light stainless steel, medium-strength steel
Key Traits: Has W and Si; good at high temps, resists chipping
Hardness: HRC 60-62 (after heat treatment)
Chemical Composition (Typical): 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 0.20-0.50%, P ≤0.030%, S ≤0.030%
How Components Help: Cr + Mo = good strength and resistance to heat damage; V makes grains finer, improving toughness and wear; Si protects against oxidation at high temps.
Best for: Hot-sheared strip steel, thick plates, cold-sheared high-strength alloy steel, stainless steel thick plates
Key Traits: Strong at high temps, tough, resists heat damage, no easy softening/bending
Hardness: HRC 50-55 (after heat treatment)
Chemical Composition (Typical): C 1.40-1.60%, Cr 11.50-13.50%, Mo 0.70-1.20%, V 0.50-1.10%, Mn ≤0.60%, Si ≤0.60%, P ≤0.030%, S ≤0.030%
How Components Help: More Cr and C than Cr12MoV = better wear resistance and hardening; Mo and V improve toughness and prevent bending, good for heavy cutting.
Best for: Medium/low-hardness plates (Q195/Q235/45# steel/40Cr), aluminum/copper plates, non-metals (plastic, rubber, paper, fiberboard, composites)
Key Traits: High carbon/chromium, very wear-resistant, resists bending
Hardness: HRC 58-62 (after heat treatment)
Chemical Composition (Typical): 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%
How Components Help: V + Mo = finer metal grains, better bending strength and toughness; Cr ensures hardness and wear resistance; Si makes hardening easier and boosts toughness.
Best for: High-strength steel, stainless steel, thick plates, hard-to-cut metals (for large hydraulic/CNC shears)
Key Traits: Strong, tough, wear-resistant, resists chipping; fine grains from V and Mo
Hardness: HRC 58-62 (after heat treatment)
Straightness and flatness: Reduce stress on machine parts, preventing early wear.
Our blades (including Amada replacements and custom length guillotine knives) are CNC-ground to tight limits.
This ensures smooth operation, consistent burr-free cuts, and longer life for blades and machines.
Check Blade Gap: Regularly check and adjust the gap to avoid uneven wear (hurts cut quality and blade life).
Regrinding Schedule: Regrind blades regularly to restore sharpness. This is cheaper than replacing them early (especially for Amada replacements).
Operate Within Limits: Don’t overload the machine or cut materials too hard—this causes chipping or bending.
NO. | Product Name | Specification Dimensions (length x width x height/thickness) ） | Material | Remarks |
1 | Metal guillotine blade size | 508x70X22 |
| Customization services are available; we can manufacture according to your drawings, with a minimum order quantity of 1 piece. |
2 | 508x80x25 | |||
3 | 1025x63x16mm | |||
4 | 1025x80x20mm | |||
5 | 1025x100x25 | |||
6 | 1100x64x16 | |||
7 | 1100x80x20 | |||
8 | 1100x100x25mm | |||
9 | 1300x63x16mm | |||
10 | 1300x63x18 | |||
11 | 1300x80x20mm | |||
12 | 1300x80x25mm | |||
13 | 1300x100x25 | |||
14 | 3300x100x30mm | |||
15 | Manual Shearing Machine Blade szie | 170*30*10 | ||
16 | 205*30*10 | |||
17 | 350*30*10 |
The following table summarizes the type, core characteristics and main applicable shearing materials of common blade materials:
Blade Material | Material Type | Characteristics | Main Shearing Materials |
9CrSi | Alloy Tool Steel | High hardness, high wear resistance, small quenching deformation, high cost performance | Thin cold-rolled plate, galvanized plate, aluminum plate, copper plate; non-metallic materials such as plastic and leather |
6CrW2Si | Alloy Tool Steel | Contains tungsten element, excellent red hardness and wear resistance | Hot shearing operations materials, light stainless steel, medium strength steel |
Cr12MoV/SKD-11 | High Carbon High Chromium Steel | Excellent wear resistance and hardenability | Stainless steel, silicon steel, high strength steel, low carbon steel of various thicknesses, Q235, aluminum plate, copper plate |
H13 (4Cr5MoSiV1) | Hot Work Die Steel | Excellent high temperature strength and thermal fatigue resistance | Hot-sheared hot rolled plate, iron plate, medium and thick plate, scrap metal, hot-sheared strip steel, cold-sheared high strength alloy steel, stainless steel thick plate |
Cr12Mo1V1/ D2 | High Carbon High Chromium Steel | High strength, good wear resistance, excellent chipping resistance | Stainless steel, high strength steel, silicon steel, medium and low hardness plates (Q195/Q235/45# steel / 40Cr, etc.), aluminum / copper / brass / red copper plate; non-metallic materials such as plastic / rubber / paper / fiberboard, composite materials |
LD (7Cr7Mo2V2Si) | Cold Work Die Steel | High strength, good toughness, wear resistance and chipping resistance, excellent comprehensive performance | High strength steel, stainless steel, thick plate and hard-to-shear metal materials (for large hydraulic shearing machines, heavy CNC shearing machines) |
China (GB) | USA(ASTM) | Japan (JIS) | Germany (DIN) | Germany (W-Nr) | France (NF) | Russia (ROCT) | U.K (BS) |
9CrSi | - | - | 90CrSi5 | 1.2108 | - | 9XC | - |
6CrW2Si | - | - | 60WCrV7 | 1.255 | 55WC20 | 6XB2C | - |
Cr12MOV | - | SKD11 | X165CrMov12 | 1.2601 | - | X12M | - |
Cr12Mo1V1 | D2 | - | X155Cr12Mo12 | 1.2379 | X160CrMoV12 | - | BD |
4Cr5MoSiVI | H13 | SKD61 | X40CrMoV5-1 | 1.2344 | X40CrMoV5 | 4X5MO1C | BH13 |
LD | - | - | - | - | - | - | - |
W18Cr4V | T1 | SKH2 | S18-0-1 | 1.3355 | HS18-0-1 | P18 | BT1 |
W6Mo5Cr4V2 | M2 | SKH9 | S6-5-2 | 1.3343 | - | P6M5 | BM2 |
Mechanical blades are (special wearing parts) due to different cutting products, correct and reasonable selection of materials, heat treatment hardness, grinding accuracy, packaging requirements. Please contact us before purchase and confirm whether the blade specifications materials you need are available goods.
Nanjing Alas International Co., Ltd. is a professional industrial tooling manufacturer focused on shear blades, bending dies, shredder blades, and custom wear parts. We offer full application engineering, material selection, setup guidance, and after-sales support to global customers.
Tell us your requirements, and our engineering team will provide professional solutions for blade specification, tool life optimization, and cost-effective production.