The rebar that never corrodes.
Ribbed bar of epoxy resin with graphene and fiberglass, made in Yecla (Spain). 70 % lighter than steel: unloaded and placed by hand. Scroll to see it.
Characteristic value by diameter, above B500 steel. Declared to EAD 260023-00-0301.
Versus 1.58 kg/m for steel. One GraphenBar truck equals six steel trucks.
Immune to chlorides and marine environments. Neither magnetic nor conductive: fit for hospitals and data centers.
GraphenBar®, with CE marking.
With European Technical Assessment ETA 26/0130, certificate of constancy of performance No. 1301-CPR-2719, issued by notified body TSÚS under system 1+, and our Declaration of Performance No. GRB001, GraphenBar is placed on the market with CE marking throughout the European Union and the EEA as reinforcement for structural concrete elements.
- European Technical Assessment
- ETA 26/0130Version 01, issued on 3 November 2026 by TSÚS (Bratislava) in accordance with EAD 260023-00-0301.
- Certificate of constancy of performance
- 1301-CPR-2719Issued on 5 November 2026 by TSÚS, notified body No. 1301, for our plant in Yecla, Spain. System 1+, the most demanding under Regulation (EU) 305/2011: factory inspection, factory production control and continuous surveillance.
- Declaration of Performance
- GRB001Issued on 5 November 2026 by the manufacturer, Graphenano Smart Materials sl (Yecla, Spain). With it, GraphenBar carries CE marking.
- Assessed use
- StructuralBeams, columns, panels, slabs and other structural reinforced-concrete elements, and post-installed rebars. Straight bars, Ø 6, 8, 10, 12, 14, 16, 18 and 20 mm.
Need the full ETA for your project? Our technical department will send it to you. Request the ETA
The rebar that never corrodes.
Reinforcement bars made of epoxy resin with graphene and fiberglass (GFRP), manufactured by pultrusion to replace steel in reinforced concrete. Characteristic tensile strength of 773 to 935 MPa depending on diameter, 70 % less weight than steel and immunity to corrosion, with a working life of more than 100 years, including marine environments.
Steel corrodes. Reinforcement does not have to.
What GraphenBar is, how it is pultruded in Yecla, and why reinforcement that does not corrode, does not conduct and is not magnetic changes the durability case in marine works, bridges and buildings.
Nominal performance against reference steel, per product specification.
Weigh your reinforcement
GraphenBar® vs B500Same-diameter comparison. GraphenBar mass per 2026 catalogue (EAD 260023-00-0301); steel mass, nominal. Replacement of reinforcement must be verified by the project engineer. Price excl. VAT, 25 bars × 4 m pack.
Buy Ø12of the weight of steel, with a higher characteristic tensile strength
Non-metallic: zero oxidation in saline, marine or chloride environments. Working life of more than 100 years.
Characteristic value by diameter, above B500 steel. Declared to EAD 260023-00-0301.
Density 1.90–1.96 g/cm³ versus 7.85 for steel. Ø16: 0.42 kg/m versus 1.58 kg/m. One GraphenBar truck equals six steel trucks.
Neither magnetic nor conductive: ideal for hospitals, data centers and sensitive-equipment environments.
Declared mean value. The cohesion provided by graphene gives a clean, predictable failure.
By diameter. Seismic behaviour is not an assessed characteristic: use in seismic zones must be justified by the project engineer.
Declared glass transition of the bar (Ø12). Declared maximum service temperature 70.5 to 86.9 °C by diameter.
The cohesion provided by graphene allows grinding, micronising and reuse in new composite parts.
Standard diameters 6, 8, 10, 12, 14, 16, 18 and 20 mm — other sizes on demand, not covered by the technical assessment.
Cut with a fine-blade saw, grinder or diamond disc; no end sealing needed.
Concrete cover and reinforcement layout are defined by the project engineer according to the structural design of each project.
Pick the diameter. The table does the rest.
| Geometry and mass | Declared performance · DoP GRB001 | Equivalence and site | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ø (mm) | deff (mm) | Aeff (mm²) | Mass (kg/m) | Char. load (kN) | fftk0 (MPa) | Ef (GPa) | εftk0 (%) | τs (MPa) | τi (MPa) | ≙ steel Ø (mm) | m / tonne | m / 20 t truck |
| Ø 6 | 6.21 | 30.29 | 0.058 | 27.3 | 900.9 | 40.55 | 2.2 | 214.13 | 51.02 | Ø 8 | 17,241 | 344,828 |
| Ø 8 | 8.14 | 52.14 | 0.102 | 48.8 | 935.2 | 43.57 | 2.1 | 192.82 | 46.09 | Ø 12 | 9,804 | 196,078 |
| Ø 10 | 10.60 | 88.17 | 0.167 | 74.3 | 842.4 | 39.53 | 2.0 | 166.60 | 46.69 | Ø 14 | 5,988 | 119,760 |
| Ø 12 | 12.42 | 121.09 | 0.237 | 102.0 | 842.4 | 41.47 | 2.0 | 195.92 | 45.79 | Ø 16 | 4,219 | 84,388 |
| Ø 14 | 14.86 | 173.38 | 0.337 | 142.3 | 820.5 | 40.98 | 1.8 | 190.10 | 48.91 | Ø 20 | 2,967 | 59,347 |
| Ø 16 | 16.77 | 220.83 | 0.424 | 176.8 | 800.8 | 40.52 | 2.0 | 193.85 | 48.33 | Ø 22 | 2,358 | 47,170 |
| Ø 18 | 18.48 | 268.14 | 0.526 | 223.2 | 832.5 | 43.71 | 1.9 | 206.93 | 48.55 | Ø 24 | 1,901 | 38,023 |
| Ø 20 | 20.40 | 326.80 | 0.625 | 252.6 | 772.8 | 40.07 | 1.8 | 192.72 | 45.47 | Ø 26 | 1,600 | 32,000 |
Scroll the table to see every column →
Characteristic tensile load per diameter (fftk0 × Aeff) and effective cross-sectional area, to EAD 260023-00-0301. Other sizes on demand, not covered by the technical assessment. Steel equivalence is indicative: replacement of reinforcement must be verified by the project engineer. All commercial sizes are sold online in 25-bar packs (4 and 6 m) and 250 m coils.
Steel is bought by weight. GraphenBar is not.
Two bars that reinforce the same do not weigh the same: ours weighs seven times less. That is why the kilo is no basis for comparison. What gets tied and cast is metres, and one tonne of GraphenBar yields seven times more metres than one tonne of the steel it replaces.
The kilo measures haulage. The metre measures reinforcement.
Metres yielded by one tonne of each material, diameter by diameter. GraphenBar mass per Declaration of Performance no. GRB001; steel mass, nominal (π/4·d²·7,850 kg/m³). Diameter equivalence is indicative: replacement of reinforcement must be verified by the project engineer.
One GraphenBar truck equals six steel trucks.
At 27 % of steel's weight, each 20 t truck carries up to four times more metres of reinforcement. Fewer shipments, less crane time, less handling labour and spark-free cutting.
GraphenBar mesh, ready to buy.
| Grid · Ø | Panel weight | ≙ steel | Panel price | |
|---|---|---|---|---|
| 15×15 · Ø 4 mm | 5.35 kg | steel Ø5 | €19.21 | Buy in the shop → |
| 15×15 · Ø 5 mm | 8.36 kg | steel Ø6 | €26.80 | Buy in the shop → |
| 15×15 · Ø 6 mm | 12.03 kg | steel Ø8 | €35.10 | Buy in the shop → |
| 20×20 · Ø 4 mm | 4.07 kg | steel Ø5 | €17.19 | Buy in the shop → |
| 20×20 · Ø 5 mm | 6.36 kg | steel Ø6 | €20.40 | Buy in the shop → |
| 20×20 · Ø 6 mm | 9.16 kg | steel Ø8 | €26.72 | Buy in the shop → |
6 × 2.2 m panel. Mechanically equivalent to steel mesh one diameter up. Price excl. VAT.
Assessed to EAD 260023-00-0301.
European Assessment Document applicable to GFRP bars for concrete reinforcement.
Manufactured under FPC, with batch control on our pultrusion line in Yecla.
European Technical Assessment ETA 26/0130, version 01 issued by TSÚS on 3 November 2026 in accordance with EAD 260023-00-0301, and certificate of constancy of performance No. 1301-CPR-2719, issued on 5 November 2026 by notified body TSÚS (No. 1301) under system 1+ of Regulation (EU) 305/2011. With the manufacturer’s Declaration of Performance No. GRB001 of 5 November 2026, GraphenBar carries CE marking.
Design is the responsibility of the project engineer, applying the codes and guidelines in force for GFRP bars.
Graphenano Smart Materials holds management system certifications (ISO 9001 · 14001 · 45001). These do not certify the product.From the pultrusion line to your site.
74–80 MJ versus 315–371 MJ per part.
Life-cycle assessment (LCA) of pultruded parts shows 74–80 MJ of embodied energy versus 315–371 MJ for the equivalent steel part: no blasting, no painting and no maintenance in the use phase. These are sector-level data on pultruded profiles, not a product-specific study. And thanks to graphene's cohesion the material can be recovered: ground, micronised and reused.
Preliminary LCA · embodied energy per equivalent part
In designs governed by ultimate limit state (ULS) you can substitute directly with high-modulus GraphenBar. If serviceability governs, redesign to GFRP specifications is recommended — often optimising section and consumption.
Seismic behaviour is not an assessed characteristic of the product, so its use in seismic zones must be justified by the project engineer. Bridges and structures with GFRP reinforcement exist in seismic regions, but that experience refers to GFRP bars in general.
Fine-blade saw, grinder or diamond disc. No end sealing required. A dust mask is recommended.
The declared glass transition temperature of the bar is 109.1 °C and the declared maximum service temperature ranges from 70.5 to 86.9 °C depending on diameter. Reaction to fire is not an assessed characteristic.
Behaviour at sub-zero temperatures is not among the assessed characteristics. Ask us and we will review it with our technical department.
Bar pricing is competitive and far below stainless steel. Counting transport (×6), handling, corrosion inhibitors, cover concrete and maintenance, total project cost goes down.
Download the GraphenBar® catalogue.
24 pages covering the range, technical data by diameter, installation and engineering questions. Values declared to EAD 260023-00-0301.
Does your project call for GraphenBar?
Send us diameters, bill of quantities and site location and we'll return pricing and steel equivalence within 24 working hours.
GraphenBar, the ribbed glass fibre and graphene rebar made in Yecla (Murcia, Spain), now carries CE marking and can be used on projects across the European Union. It does not rust, weighs 75% less than steel and cuts haulage, site work and CO2 emissions.
Ribbed GFRP rebar weighs a quarter of what steel does, does not rust and has a higher tensile strength. It is also less stiff and cannot be bent on site. What to know before you change the reinforcement.
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Glass fibre bars have no harmonised standard, so their CE marking goes through a European Technical Assessment. What each document is, the order in which they come and what to check before you specify.