Phone:
86-15852949220
NANJING ALAS INTERNATIONAL CO., LTD
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Nanjing, China
T/T, Money Gram
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Type: Hot Work Die Steel
Key Features: Good high-temperature strength and resistance to heat fatigue
Uses: Cutting hot-rolled plates, iron plates, scrap metal, thick stainless steel, and high-strength alloy steel
Type: Cold Work Die Steel
Key Features: High strength, toughness, wear resistance, and not easy to chip
Uses: Cutting high-strength steel, stainless steel, thick plates, and hard-to-cut metals (for large hydraulic and CNC shears)
Performance: Hardness HRC52-55 after heat treatment; resists impact and high-temperature softening; tough and easy to harden
Suitable for: Alligator shears ≥160T; cutting ultra-thick steel plates (≥30mm), high-hardness round steel, thick-walled welded pipes
Advantages: Good for heavy impact; prevents chipping/breakage; easy to use; mature production process
Performance: Upgraded from H13; retains impact resistance, better toughness, high-temperature stability, and fatigue resistance
Suitable for: Ultra-large shears ≥180T; cutting extra-thick steel plates (≥40mm), heavy alloy steel, thick-walled seamless pipes, large structural steel
Advantages: More durable than H13; 20%-30% longer service life; best for ultra-large shears
Performance: Hardness HRC60-64 after heat treatment; very wear-resistant; uniform hardness; tough core
Suitable for: Medium-large shears 100T-160T; cutting 10-30mm steel plates, thick rebar, rusty scrap steel, angle steel/channel steel
Advantages: Most wear-resistant; reduces blade replacement; improves work efficiency
Use vacuum heat treatment (instead of ordinary air quenching) to avoid surface oxidation and ensure uniform hardness.
Temper at 180-220℃ after quenching to reduce internal stress, prevent deformation/cracking, and stabilize hardness and toughness.
Most alligator shear blades use H13 material.
Use H13K if scrap has complex components.
Contact the manufacturer for higher performance needs.
Tailored Material: Choose H13, H13K, etc., based on the materials you cut (aluminum, steel rebar).
Fit Your Machine: Make blades according to your technical drawings (for old or special shears) for a perfect fit.
Longer Life: Vacuum heat treatment ensures uniform hardness; use all four cutting edges.
Lower Cost: Cuts faster with less energy; reduces maintenance costs.
Clean Cuts: Minimizes burrs; makes scrap more valuable.
Heavy-Duty: Handles shocks from cutting thick pipes, bars, and structural steel.
China (GB) | USA(ASTM) | Japan (JIS) | Germany (DIN) | Germany (W-Nr) | France (NF) | Russia (ROCT) | U.K (BS) |
Cr12Mo1V1 | D2 | - | X155Cr12Mo12 | 1.2379 | X160CrMoV12 | - | BD |
4Cr5MoSiVI | H13 | SKD61 | X40CrMoV5-1 | 1.2344 | X40CrMoV5 | 4X5MO1C | BH13 |
LD | - | - | - | - | - | - | - |
Our quality: All mechanical parts, tools, and molds are manufactured in-house. Upon arrival at our warehouse, products undergo rigorous inspection by a dedicated quality control department. The following is our production process:
1. Blanking-choose materials according to customer requirements.
2. Forging-Forging is mainly to increase the density of the material.
3 .Annealing-to lower the temperature for processing.
4 .Finishing ---- mainly processing materials.
5 .Inspection ---- Inspect whether the product is consistent with the drawing sample.
6.Quenching ---- Improve the hardness of molded products and materials.
7 .Annealing-In order to increase the wear resistance of the product, it must be annealed for a long time to prevent the blade from breaking
8 .Tempering-mainly the parallelism of the tempering products for processing.
9 .Rough grinding ---- rough grinding the surface of the product.
10.Precision grinding ---- Super-precision grinding and mirror grinding to improve the accuracy and parallelism of the product.
11. Inspection-Let unqualified products refuse to flow into the market.
12 .Packing ---- Pack differently according to different products.
French (Français): Lames de cisaille crocodile sur mesure | Recyclage de métaux
Italian (Italiano): Lame per cesoia a coccodrillo personalizzate | Riciclaggio rottami
Portuguese (Português): Lâminas de cisalha jacaré personalizadas | Facas para sucata
Polish (Polski): Noże do nożyc aligatorowych na zamówienie | Recykling złomu
Turkish (Türkçe): Özel Timsah Makas Bıçakları | Metal Geri Dönüşüm Çözümleri
Vietnamese (Tiếng Việt): Lưỡi dao máy cắt cá sấu tùy chỉnh | Cắt phế liệu kim loại
Thai (ภาษาไทย): ใบมีดเครื่องตัดเหล็กปากจระเข้ (Custom) | ใบมีดรีไซเคิลโลหะ
Arabic (العربية): شفرات مقص التمساح المخصصة | سكاكين إعادة تدوير الخردة
Hindi (हिन्दी): कस्टम एलीगेटर शीयर ब्लेड | धातु पुनर्चक्रण के लिए समाधान
Indonesian (Bahasa Indonesia): Pisau Potong Alligator Custom | Bilah Daur Ulang Logam
Malay (Bahasa Melayu): Bilah Pemotong Buaya (Alligator) | Kitar Semula Besi
Dutch (Nederlands): Op maat gemaakte krokodillenschaar bladen | Metaalrecycling
Swedish (Svenska): Anpassade krokodilsaxskär | Knivar för metallåtervinning
Hungarian (Magyar): Egyedi aligátorvágó pengék | Fémhulladék feldolgozás
Greek (Ελληνικά): Εξατομικευμένες λεπίδες ψαλιδιού αλιγάτορα | Ανακύκλωση μετάλλων
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.