Phone:
86-15852949220
NANJING ALAS INTERNATIONAL CO., LTD
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Blade material decides hardness, toughness and service life. Choose based on your cutting needs.
The most popular high-quality blade material.
Has great wear resistance and toughness.
Resists heat changes well.
Hard to deform or chip during long, heavy cutting.
Perfect for cutting high-strength rebar in large amounts.
Bar cutting blades face strong impact and heat in construction and metal work.
H13 balances heat resistance and shock resistance well.
Stays hard even when hot and resists heat cracks.
Square blades: 4 usable sides, longer life, for large-scale work.
Rectangular blades: 1 or 2 cutting sides, for small-tonnage cutters.
GQ40, GQ50, GQ60 machines need different thickness, length, width and hole spacing.
Always follow the machine manual.
Precast concrete plants: mass rebar cutting.
Steel mills: cutting round bars and wire rods.
Demolition sites: mobile rebar cutting tools.
Automatic rebar production lines.
Steel rolling mills.
Demining working environments.
Blades use full grinding and vacuum heat treatment.
Hardness is even.
Keeps sharpness well.
Less chipping and dulling.
Solves easy breaking when cutting high-strength rebar.
Stable under long-time heavy use, no deformation or chipping.
Very suitable for international trade.
Needs fewer replacements.
Saves transport costs and import duties.
High toughness, resists heat fatigue and shock.
Vacuum heat treatment makes hardness 52–58 HRC.
High chromium for strong wear resistance.
Longer service time, less regrinding.
Material choice directly affects your cost.
H13 is versatile and durable.
Works well in tough conditions.
Keeps hardness and precision when other steels get soft.
H13 blades lower tool costs and extend service time.
We offer standard sizes and custom designs.
Reliable blades help you work faster and better.
| NO. | Product Name | Specification Dimensions (length x width x height/thickness) ） | Material | Remarks |
| 1 | bar cutting blade size | 78*78*17mm | H13 | Customization services are available; we can manufacture according to your drawings, with a minimum order quantity of 2 piece. |
| 2 | 80*80*17mm | |||
| 3 | 80*80*30mm | |||
| 4 | 83*83*16mm | |||
| 5 | 83*83*26 mm | |||
| 6 | 83*83*26 mm | |||
| 7 | 90*90*20 mm | |||
| 8 | 90*90*26 mm | |||
| 9 | 100*100*20 mm | |||
| 10 | 100*100*30 mm | |||
| 11 | 110*110*20 mm | |||
| 12 | 100*30*75 mm | |||
| 13 | 85x65x30 mm |
Base Grade | Steel Category | Chinese Standard GB/T 1299 | American Standard ASTM | German Standard DIN (W-Nr.) | Japanese Standard JIS |
H13 | Hot Work Die Steel | 4Cr5MoSiV1 | H13 | 1.2344 | SKD61 |
Cr12MoV | Cold Work Die Steel | Cr12MoV | 1.2601 | SKD11 | |
9CrSi | Alloy Tool Steel (Cutting Tool Steel) | 9CrSi | 1.2108 |
Based on different working conditions and budget requirements, we offer three general industrial-grade alloy steel materials:
9CrSi (Alloy Tool Steel): An economical choice. It has good hardenability and machinability, suitable for cutting ordinary medium-to-low strength rebar, and is widely used in small and medium-sized projects.
Cr12MoV (Cold Work Die Steel): High-end wear-resistant type. High carbon and high chromium content, after heat treatment, it has excellent wear resistance, making it an ideal choice for continuous cutting of high-strength rebar. Its service life is much longer than 9CrSi.
H13 (Hot Work Die Steel/Red Hard Steel): High toughness and high wear resistance. It exhibits excellent resistance to chipping and thermal stability in rebar cutting applications, especially suitable for high-speed production lines or online cutting of hot-rolled rebar, and cutting of ultra-thick rebar and composite materials of scrap rebar.
Chipping is usually caused by the following factors:
Insufficient toughness: Using ultra-hard but low-toughness materials to cut large-diameter or ultra-hard rebar can easily lead to brittle fracture. In this case, we recommend switching to H13 material, as its excellent toughness can effectively absorb impact forces.
Improper clearance: Too large or too small a gap between the upper and lower blades will lead to uneven stress, resulting in chipping.
Insufficient heat treatment: Internal stress is not completely eliminated. All our blades use vacuum heat treatment technology to ensure uniform hardness from the inside out, greatly reducing the chipping rate.
Wear resistance: Cr12MoV has significantly better wear resistance than 9CrSi. Under the same working conditions, the number of cuts for Cr12MoV is usually 2-3 times that of 9CrSi.
Cost: 9CrSi is more cost-effective, suitable for projects sensitive to initial purchase costs; although the unit price of Cr12MoV is slightly higher, its lower replacement frequency results in a lower overall cutting cost per ton of rebar.
For high-strength or ribbed rebar, we strongly recommend H13:
If you are facing extremely high operating intensity and are concerned about downtime due to blade chipping, choose H13. Its impact fatigue resistance is top-notch in the rebar processing industry.
Yes. We understand that blade specifications vary among different equipment brands (e.g., from Italy, Germany, or China). We are equipped with a full set of CNC machining equipment, and you only need to provide the following information:
Detailed drawings (including length, width, thickness, and hole dimensions).
Material requirements (9CrSi, Cr12MoV, or H13).
Specifications of the workpiece to be processed (rebar diameter and strength grade).
We can provide a 1:1 precise customized solution.
Regular rotation: Our blades are usually designed with 4 or 8 cutting edges. Please rotate the blade promptly when one cutting edge becomes dull.
Tighten bolts: Ensure the blades are securely installed. Any slight looseness will cause destructive impact during the cutting process.
Control the gap: Adjust a reasonable blade gap according to the rebar diameter, usually about 10% of the rebar diameter.
French (Français): Lames de coupe en acier H13 | Couteaux pour barres d'acier
Italian (Italiano): Lame in acciaio H13 per taglio barre | Lame da taglio industriali
Portuguese (Português): Lâminas de corte de barra em aço H13 | Facas de alta resistência
Polish (Polski): Noże ze stali H13 do cięcia prętów | Noże do cięcia na gorąco
Turkish (Türkçe): H13 Çelik Çubuk Kesme Bıçakları | Sıcak Kesme Makas Bıçakları
Vietnamese (Tiếng Việt): Lưỡi dao cắt thép thanh H13 | Dao cắt nhiệt độ cao
Thai (ภาษาไทย): ใบมีดตัดเหล็กเส้นเหล็กกล้า H13 | ใบมีดทนความร้อนสูง
Arabic (العربية): شفرات قطع قضبان الصلب H13 | سكاكين القص المقاومة للحرارة
Hindi (हिन्दी): H13 स्टील बार काटने वाला ब्लेड | उच्च प्रभाव प्रतिरोधी ब्लेड
Indonesian (Bahasa Indonesia): Pisau Potong Batang Baja H13 | Bilah Potong Tahan Panas
Malay (Bahasa Melayu): Bilah Pemotong Batang Keluli H13
Dutch (Nederlands): H13 stalen staalsnijmessen | Hoogwaardige snijmessen
Swedish (Svenska): H13 stål stångklippblad | Slitstarka klippknivar
Hungarian (Magyar): H13 acél rúd vágó pengék | Hőálló vágókések
Greek (Ελληνικά): Λεπίδες κοπής χαλύβδινων ράβδων H13
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.