ALAS Reinforcing Bar Cutting Blades for HRB400/HRB500E Deformed Rebar
Engineered for the demanding environment of modern construction yards and high-capacity rebar fabrication plants, premium ALAS reinforcing bar cutting blades deliver unmatched shear precision and extended tool life. Manufactured from high-grade shock-resisting alloy steel, each rebar cutting blade by ALAS is optimized to effortlessly shear high-tensile deformed rebar conforming to global standards, including HRB400, HRB500E, ASTM Grade 60/75, and BS 4449 Grade 500C.
Our heavy-duty rebar shearing knives feature a multi-sided cutting edge design, allowing for simple rotation to maximize utility and dramatically reduce replacement costs on-site. Whether you are processing standard carbon steel round bars or high-strength deformed reinforcing mesh, ALAS steel bar cutter blades ensure clean, square cuts with minimal deformation. Perfect for high-volume onsite operations, these blades provide the ultimate combination of toughness, wear resistance, and universal compatibility for global bar cutting machines
1. Why Choose ALAS Bar Cutting Blade?
Extended service lifespan: Full integral heat treatment vs surface-only hardened alternatives delivers 200% higher abrasion resistance verified by laboratory abrasion tests.
Heavy-load structural stability: No bending or deformation after over 8,000 cutting cycles on HRB500E high-strength rebar.
Wide machine compatibility: Fits GQ40/GQ50/GQ60 cutters plus mainstream European, Italian and German hydraulic rebar shears.
Custom dimensional processing: MOQ only 2 pcs; send your technical drawings for custom CNC precision grinding of non-standard blades.
In-stock quick dispatch: Single-piece order acceptable for all standard-size blades with shipment within 24 hours.
Optimized H13 anti-chipping property: Vacuum heat treated to an optimal 50–55 HRC, balancing high hardness and sufficient toughness to drastically reduce edge cracking when cutting HRB500E rebar.
2. Material Selection Guide & Performance Test Data
| Material Specification | Hardness(HRC) | Impact Toughness(J/cm²) | Application Scenarios | Relative Wear Resistance Rating |
| H13 Anti-Chipping Hot Work Die Steel | 50–62 (optimized 58–62) | ≥25 | HRB500E rebar, large-diameter bars, rusty/scrap contaminated rebar, high-volume continuous production; top-tier anti-edge-cracking performance | ★★★★★ |
| Cr12MoV Cold Work Die Steel | 55–58 | ~12 | Cold-drawn hard round bars; not recommended for high-impact HRB500E cutting | ★★★★☆ (2~3x service life vs 9CrSi) |
| 9CrSi Alloy Tool Steel | 50–55 | ~15 | Low-carbon plain round bar, light-to-medium construction cutting only | ★★☆☆☆ |
Quality Certification Reference: Our heat treatment complies with ASTM A681 & DIN 17350 tool steel specifications; hardness inspection is executed per ISO 6508-1. Material & hardness test reports are supplied with every production batch.
3. 3-Step Guide to Select Matching Rebar Cutting Blade
Step1: Confirm rebar grade & diameter
Mild plain round bar ≤25mm → 9CrSi or Cr12MoV
High-strength deformed HRB500E (all diameters) → H13 mandatory; its chip-resistant property prevents edge breakage under heavy cutting impact
Rusty, sand-covered scrap rebar → Custom high-nickel special alloy blade
Step2: Confirm blade shape by cutter model
Step3: Verify dimensions or submit engineering drawing
Standard sizes listed below available from stock; custom orders require overall dimensions, thickness and mounting hole coordinates, finished via CNC grinding within 7–15 working days.
4. Actual Service Life Data of H13 Blade Cutting HRB500E Rebar
With standard vacuum quenching + full through hardening, below is the average cutting capacity per single cutting edge for our optimized H13 blade:
| Rebar Diameter | Average Cuts per Single Edge | Total Cuts (4-edge square rotatable blade) |
| Ø12–Ø18 Small-size | 6,000–8,000 | 24,000–32,000 |
| Ø20–Ø28 Medium-size | 4,000–6,000 | 16,000–24,000 |
| Ø32 & above Large-size | 2,000–3,500 | 8,000–14,000 |
Note: Double the single-edge cutting quantity for double-edge rectangular handheld cutter blades (e.g. 12,000–16,000 total cuts for Ø20–Ø28mm rebar).
Four Core Factors Influencing Actual Blade Lifespan
Rebar diameter (primary factor)
Small Ø12–18mm bars generate low cutting impact to achieve full rated cutting cycles; oversized Ø32+ HRB500E features high tensile strength that accelerates edge wear and chipping and shortens service life significantly.
Heat treatment & finished hardness
Our vacuum heat-treated H13 fixed at 58–62 HRC realizes optimal hardness-toughness balance to hit upper lifespan limits; inferior salt-bath heat treatment with surface decarburization cuts blade service life by over 50% (under 1,500 cuts per edge).
Single vs stacked multi-bar cutting
Cutting 2~3 HRB500E bars in one cut multiplies lateral shear stress, triggering micro chipping and sharp lifespan reduction; we recommend cutting one bar per stroke for maximum blade durability.
Machine blade clearance & equipment stability
Optimal clearance = approx.10% of corresponding rebar diameter for uniform force distribution; excessive clearance leads to rebar twisting, uneven abrasion and premature blade scrappage.
5. In-Stock Standard Blade Dimensions (mm, L×W×T)
Stationary GQ Series Cutter Square Blades
78×78×17, 80×80×17, 80×80×30, 83×83×16, 83×83×26, 90×90×20, 90×90×26, 100×100×20, 100×100×30, 110×110×20, 100×30×75, 85×65×30
Portable Handheld Hydraulic Cutter Rectangular Blades
26×20×10, 30×24×11, 36×28×14, 40×30×15
All listed sizes available in 9CrSi / Cr12MoV(SKD11) / H13; in-stock items ready for shipment within 24 hours.
6. Real Customer Case: 65% Reduction in Blade Replacement Downtime
Client: Large-scale rebar processing plant in Chile; daily output: 80 tons HRB500E cut rebar
Original issue: Generic 9CrSi blades chipped and dulled rapidly, requiring full blade replacement every 3 working days
Solution: Switch to our vacuum heat-treated H13 cutter blades (finished hardness 59–61 HRC)
Final Results:
Single blade service life extended from 3 days to 22 days (7x lifespan improvement)
Blade-replacement machine downtime cut down by 65%
Comprehensive cutting cost per ton of finished rebar reduced by 42%
Zero unexpected large edge chipping during full production trial period
7. Frequently Asked Questions
Q1: What steel grades do you supply for rebar cutting blades?
A1: Four options for diversified working conditions: Economy-grade 9CrSi for mild plain bar; Cr12MoV(SKD11) for high-abrasion low-impact hard bar; H13 high-toughness chip-resistant grade for heavy-duty HRB500E cutting; customized high-nickel alloy exclusively for rust/sand-filled scrap rebar.
Q2: Why does my existing blade chip constantly during cutting?
Improper material selection: Using brittle Cr12MoV on large-size HRB500E → replace with impact-resistant H13
Incorrect blade clearance setting (target gap =10% of rebar diameter)
Substandard heat treatment; our vacuum processing eliminates internal residual stress effectively
Stacked multi-bar cutting which magnifies instantaneous shear impact
Q3: What’s the expected cutting yield of H13 blade on HRB500E?
A3: 2,000~8,000 cuts per single edge depending on rebar diameter (refer to Section 4 datasheet). Four-edge rotatable square blade totals 12,000~32,000 cuts under correct 58–62 HRC heat treatment.
Q4: Can you fabricate non-standard custom blades per customer drawings?
A4: Yes, minimum order quantity:2 pieces. Kindly provide detailed drawings with overall dimension, hole layout, steel grade and rebar specification (diameter & tensile grade) for CNC precision grinding quotation.
Q5: Practical tips to extend cutter blade service life?
Rotate square four-edge blades periodically to utilize all cutting edges fully
Fasten mounting bolts to specified torque; loose fasteners cause abnormal impact chipping
Set blade clearance at roughly 10% of processed rebar diameter
Deploy H13 grade only for continuous HRB500E production (optimized 50–55 HRC)
Never feed multiple bars for one cutting stroke; process single bar per cut
Regularly inspect blade clearance with a feeler gauge
Q6: What makes your H13 blade outstanding against edge chipping?
A6: Our H13 blank undergoes precise vacuum quenching and full through hardening controlled at 58–62 HRC to balance high hardness and sufficient core toughness (hard but not brittle). The microstructure can absorb instant heavy cutting impact from high-strength HRB500E without edge crack initiation, unlike brittle Cr12MoV prone to fracture under big impact load.
8. Order Information & After-Sales Support
Standard stocked blades: Available for single-piece purchase, shipped within 24 working hours
Custom CNC machined blades: MOQ 2 pcs, production leadtime:7–10 working days
Attached documents per shipment: Factory material certificate + hardness inspection test report
Compatibility: GQ40/GQ50/GQ60 plus H&K, Erdin, Schnell, Benza and other mainstream European hydraulic rebar cutters
Send your technical drawings or cutting parameter details for formal quotation.
Blade Metal Materials Grade Correspondence Table
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 |
|
Are high-hardness steel rebar cutting blades prone to chipping?
