86-15852949220      mt@alasmachinery.com
NANJING ALAS INTERNATIONAL CO., LTD
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Hot Shearing Blades for Steel Mills

High-Performance Hot Shearing Blades
  • Nanjing, China

  • T/T, Money Gram

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High-Performance Hot Shearing Blades for Steel Mills

Our blades provide precise cutting for red-hot steel at 800°C–1000°C in steel rolling lines. Stable cutting performance reduces frequent production shutdowns and keeps continuous operation.

1. Introduced Blade Materials

We provide various materials for cold shear and hot shear blades.For high-temperature cutting applications, we mainly recommend two premium tool steel materials below. They fit hot shearing blades, plate shear replacement blades and steel fabrication blades.

6CrW2Si

  • Features: Tungsten-silicon alloy, high hardness, heat resistant, less edge chipping

  • Hardness: HRC 55–62 (after heat treatment)

  • Applications: Hot shearing, light stainless steel, medium-strength steel

H13

  • Features: Excellent heat resistance, great toughness, no softening or bending under high temperature

  • Hardness: HRC 50–55 (after heat treatment)

  • Applications: Heavy hot shearing (steel strips, thick plates), cold shearing of high-strength alloys and thick stainless steel

2. Precision Grinding & Flatness

High-quality blades require good flatness besides excellent material properties.
  • Flatness control: Straightness error ≤ 0.02mm for long blades, achieved by precision grinding

  • Optimized blade gap: Reduces cutting heat, delivers smooth cuts without extra polishing

3. Quick Blade Selection Guide

  • Medium-strength steel, light stainless steel: 6CrW2Si

  • Thick stainless steel, high-strength alloy, heavy-duty hot shearing work: H13

4. Tips to Extend Blade Service Life

  • Rotate cutting edges: Most blades have 2–4 usable edges. Regular flipping doubles service life.

  • Adjust blade gap: Set proper clearance according to material thickness to prevent edge chipping.

  • Regular lubrication: Lubrication reduces blade wear by 15% and keeps blades sharp longer.

Important Notes

  • Higher hardness is not always better. Blades need balanced hardness and toughness. Over-hard blades chip easily; soft blades dull quickly.

  • Professional heat treatment is essential for stable blade performance.

  • For sticky metal materials, proper gap adjustment prevents blade adhesion and damage.

5. Core Advantages of Our Hot Shear Blades

Long working life comes from fine material quality and professional heat treatment.
  • Superior red hardness

    Our H13 and 6CrW2Si blades stay hard and sharp even under extreme high temperatures.

  • Strong thermal fatigue resistance

    Multi-stage tempering resists damage from repeated heating and cooling cycles, avoiding early blade failure.

  • Excellent anti-deformation performance

    Uniform internal hardness prevents cutting edges from bending under heavy cutting pressure.

6. Application Scenarios

  • Hot crop shears: Clean head and tail cutting for steel strips

  • Bloom & billet shears: Heavy-duty cutting for primary steel materials

  • Bar & rod mills: High-speed hot shearing for long steel products

  • Flying shears: Balanced blades for continuous high-speed production lines

7. ALAS Series Blades

  • Materials: 6CrW2Si, H13

  • Structure: Rectangular cross-section

  • Hardness: HRC 50–62

  • Performance: High precision, burr-free cutting surface

  • Customization: Custom blades made per your drawings, compatible with all mainstream shearing machines

8. Our Services

We offer full steel cutting blade solutions for global customers.
  • Replacement blades for well-known brands: Amada, LVD, Accurpress

  • Custom industrial hydraulic shear knives

  • Custom blade production for all cutting requirements

Our Core Products

  • Hot shearing blades

  • Scrap steel shearing blades

  • Custom hydraulic shear knives

  • Rolling mill hot shear blades

  • Replacement blades for mobile and excavator shears

Custom Engineering Support

Every steel mill has unique working conditions.Our technical team analyzes blade wear conditions, and recommends the most suitable material, edge angle and surface coating for your equipment.Using our blades reduces replacement frequency and improves overall cutting quality and production efficiency.
Contact AlasMachinery for professional technical consultation and production efficiency upgrade.

Blade Metal Materials International Grade Corresponding Table

China (GB)

USA(ASTM)

Japan (JIS)

Germany (DIN)

Germany (W-Nr)

France (NF)

Russia (ROCT)

U.K (BS)

6CrW2Si

-

-

60WCrV7

1.255

55WC20

6XB2C

-

4Cr5MoSiVI

H13

SKD61

X40CrMoV5-1

1.2344

X40CrMoV5

4X5MO1C

BH13

shearing-blades-for-steel-millsmetal-shear-blades-factory-inventory-02metal-shear-blades-factory-inventory-03

Global Supply: High-Temperature Hot Shearing Blades for Steel Mills
We specialize in manufacturing high-performance Hot Shearing Blades (Material: H13, H13K, SKD61, NiCrMo Alloy) engineered for continuous casting lines, billet shearing, and hot rolling mills:
  • English: Hot Shearing Blades | Hot Rolling Mill Knives

  • French (Français): Lames de cisaille à chaud | Couteaux pour laminage à chaud

  • Portuguese (Português): Lâminas de corte a quente | Facas para laminadores a quente

  • Polish (Polski): Noże do cięcia na gorąco | Noże do walcarek na gorąco

  • Turkish (Türkçe): Sıcak Kesme Makas Bıçakları | Haddehane Sıcak Kesim Bıçakları

  • Vietnamese (Tiếng Việt): Lưỡi dao cắt nóng | Dao cắt thép nhiệt độ cao cho nhà máy cán

  • Thai (ภาษาไทย): ใบมีดตัดเหล็กร้อน | ใบมีดสำหรับโรงงานรีดร้อน

  • Filipino: Mga Blade na Pang-hot Shear | Kutsilyo para sa Steel Mill na Mainit ang Proseso

  • Arabic (العربية): شفرات القص الساخن | سكاكين مصانع دلفنة الصلب على الساخن

  • Hindi (हिन्दी): हॉट शीयरिंग ब्लेड | स्टील मिलों के लिए गर्म कटिंग चाकू

  • Indonesian (Bahasa Indonesia): Pisau Shearing Panas | Bilah Potong Rolling Mill Panas

  • Malay (Bahasa Melayu): Bilah Gunting Panas | Pisau Kilang Gelek Panas

  • Dutch (Nederlands): Warme snijmessen | Messen voor warmwalserijen

  • Swedish (Svenska): Varmsaxskär | Knivar för varmvalsverk

  • Hungarian (Magyar): Melegvágó pengék | Meleghengerműi vágókések

  • Greek (Ελληνικά): Λεπίδες θερμής κοπής | Μαχαίρια θερμής έλασης χάλυβα

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Phone:
86-15852949220
Address:
Jiangning District, Nanjing
About Us

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.

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