ALAS H13 Rebar Cutter Blades – Professional Integrated FAQ
1. What blade materials are available, and how do they perform?
We supply three types of industrial alloy steel blades to fit different construction working conditions and budget needs. Each material delivers distinct performance for rebar cutting work:
9CrSi (Alloy Tool Steel)This is our most budget-friendly option. It offers good hardening performance and easy machining, making it ideal for small and medium construction projects. It works perfectly for cutting regular low and medium-strength rebar.
Cr12MoV (Cold Work Die Steel)A high-grade wear-resistant material with high carbon and chromium content. After professional heat treatment, it boasts outstanding wear resistance and far longer service life than 9CrSi. It is widely used for continuous cutting of standard high-strength rebar.
H13 (Hot Work Die Steel / Red Hard Steel)Our top-tier option that balances toughness and wear resistance perfectly. It resists chipping well and stays stable under high heat. It is the best choice for high-speed production lines, online cutting of hot-rolled rebar, ultra-thick rebar, and mixed scrap rebar cutting.
Why H13 outperforms 9CrSi & Cr12MoV in heavy-duty cutting?
Heavy rebar cutting creates strong mechanical impact and thermal friction. 9CrSi does not have enough hardness for heavy-load work, while Cr12MoV is overly brittle and cracks easily. Our premium H13 steel is formulated with 5% Chromium, 1% Molybdenum and 1% Vanadium. It maintains a stable hardness of HRC 50–55 while delivering excellent core toughness. It can withstand harsh cutting impacts without cracking or breaking, making it the most reliable material for continuous high-tensile rebar cutting.
2. What international steel grades match ALAS H13 blades?
To support global purchasing and ensure full compatibility with worldwide cutting machines, our H13 rebar blades strictly follow international metallurgy standards, fully equivalent to three mainstream global grades:
Strict standard compliance ensures stable material composition, high purity and uniform internal grain structure. Our blades fit all mainstream European and Asian cutting equipment perfectly with zero dimensional errors or installation issues.
3. Why do blades chip or soften? How does vacuum heat treatment fix this?
Chipping and softening are the most common blade failures during rebar cutting, mostly caused by poor material selection and low-standard heat treatment.
Main reasons for blade chipping
First, wrong material choice: Hard but low-toughness steel will chip or fracture when cutting large-diameter or high-strength rebar. Second, improper blade gap: Uneven gap between upper and lower blades leads to unbalanced stress and edge chipping. Third, incomplete heat treatment: Unrelieved internal stress leaves hidden structural flaws in ordinary blades.
Benefits of ALAS vacuum heat treatment
Most cheap blades use regular atmospheric quenching, which leaves residual internal stress and a soft core, causing easy deformation and damage. All our ALAS H13 blades adopt precise computer-controlled vacuum heat treatment. This process completely removes internal stress and delivers consistent hardness from the blade core to the edge. Most importantly, it fully unlocks H13’s unique red hardness. Even with continuous high-speed cutting and rapid temperature rises, the blade edge stays hard and stable, with no softening, deformation or chipping.
4. Which material works best for HRB500E high-strength and thick rebar?
H13 steel is our exclusive recommendation for HRB500E ribbed high-strength rebar, ultra-thick rebar and high-frequency continuous cutting tasks. Featuring superior impact fatigue resistance, H13 handles constant harsh cutting impacts effectively. It avoids blade breakage and unexpected machine downtime, fully meeting heavy-duty industrial cutting requirements.
5. Can you make custom non-standard blades for foreign or special machines?
Yes, we provide full 1:1 OEM and ODM custom services for non-standard blades, compatible with all brands of cutting machines, including Italian, German and domestic Chinese equipment.
We have a large stock of standard-size blades for fast delivery, including 78×78×17mm, 80×80×30mm, 83×83×26mm and 100×100×20mm.
For custom orders, simply provide your detailed technical drawings (including length, width, thickness and bolt hole spacing), specify the steel grade (9CrSi / Cr12MoV / H13), and confirm your processing needs (rebar diameter and strength grade). Our full CNC workshop will produce perfectly matched, plug-and-play replacement blades.
6. What cost benefits does the 4-sided square blade design bring?
Our square H13 blades are precision CNC ground with four usable cutting edges. Unlike regular single-edge blades that have to be discarded once dull, our blades can be rotated 90 degrees to use a brand-new sharp edge after one side wears out. This practical design quadruples the service life of each blade.
Paired with proper daily maintenance, it greatly cuts down blade replacement frequency and reduces your overall tooling cost per ton of processed rebar, delivering excellent long-term value for your project.
7. How to maintain blades for longer service life?
Basic daily maintenance can greatly improve blade performance and extend its lifespan. We recommend three simple but effective operations:
Rotate edges on time: Our blades come with 4 or 8 usable edges. Rotate the blade immediately when one edge turns dull to make full use of the blade.
Tighten mounting bolts: Keep blades firmly installed. Even slight looseness will cause strong impact during cutting and damage the blade edge.
Set a proper blade gap: Adjust the blade gap to around 10% of the rebar diameter. A standard gap ensures balanced stress and smooth cutting, preventing premature chipping and wear.
8.What are the best hydraulic & electric rebar cutters for construction sites?
A: We offer four main rebar cutter ranges, all compatible with our factory blades made from 9CrSi, DC53 and H13 steel.
GQ Electric Rebar Cutters
These electric machines are widely used on local job sites. They are reliable and budget-friendly, and work with our durable square 8-edge blades.
GQ40: For small sites, cuts rebar up to φ32mm
GQ50: All-round model for regular work, cuts rebar up to φ40mm
GQ60: Heavy duty for thick rebar, cuts rebar up to φ50mm
TYC Hydraulic Rebar Cutters (Korean)
This Korean line runs quiet and efficient. We provide matching round 4-edge blades that hold up well under continuous use.
TYC-HD42A / TYC-D35: Stationary heavy-duty cutters for tough jobs
TYC-NHD25 / TYC-HD19A: Light portable units, ideal for tight spaces and overhead work
RC Manual Hydraulic Rebar Cutters
Compact handheld tools for quick on-site trimming. Our fitted blades ensure long service life for frequent field use.
RC-16: Cuts rebar up to φ16mm
RC-20: Cuts rebar up to φ20mm
RC-25: Cuts rebar up to φ25mm
Turkish LXR Hydraulic Series
Sturdy hydraulic models popular across Europe and the Middle East. Our precision blades deliver clean cuts and great wear resistance.
LXR-HC24: Cuts rebar up to φ24mm
LXR-HC26: Cuts rebar up to φ26mm
LXR-HC38: Cuts rebar up to φ38mm
LXR-HC45: Cuts rebar up to φ45mm
