As a manufacturer, JUN TENG produces 12K carbon fiber fabric that strictly adheres to the GB50728 national standard. Woven from 12,000-filament PAN-based fibers, the fabric boasts a tensile strength of ≥3400 MPa; it is lightweight yet high-strength, ensures excellent resin penetration without air pockets, and is ideal for reinforcing beams, columns, and bridge cracks. We are a professional exporter with ample 12K carbon fiber fabric in stock. We support custom specifications and offer free samples. Discounts are available for bulk orders, and we welcome inquiries for price quotes—providing a reliable, stable supply for engineering projects.
The complexity of carbon fiber fabrics available in the market, the confusion surrounding tow specifications, and the prevalence of inaccurate parameter labeling are core pain points in engineering selection. 12K Carbon Fiber Fabric, a customized substrate for high-end architectural structures, differs from 3K and 6K civilian decorative-grade carbon fabrics. It is woven from industrial-grade 12K continuous carbon fiber strands, which are thicker, more evenly stressed, and exhibit stronger structural stability.
This product is primarily designed for compliance reinforcement, durability, and high construction tolerance. It is specifically tailored for civil engineering reinforcement scenarios such as concrete beams and columns, floor slabs, bridges, tunnels, and ancient architectural structures. It is not a decorative gimmick and does not exaggerate its performance. All strength parameters, thickness standards, and compatible processes have been verified through on-site testing. It is the mainstream preferred substrate material for municipal, housing construction, and renovation projects.
Core Technical Parameters
Test Item
GB 50367 National Standard
Measured data of 12K Carbon Fiber Fabric
Performance Advantages
Raw Fiber Specification
Industrial Grade ≥12K
12K T700 Continuous Carbon Fiber
Dense fiber structure without broken filaments, ensuring far better force consistency than small-tow carbon cloth
Areal Density
200g/㎡±5%
Precise 200g/㎡Full Weight
No weight reduction or cutting corners, avoiding structural bearing capacity risks
Theoretical Thickness
0.111mm
0.111mm Uniform Tolerance
Uniform thickness ensures perfect fitting and effectively prevents hollowing during construction
Tensile Strength (Grade I)
≥3400MPa
3620MPa
Exceeds national standard with sufficient margin for bending and shear resistance
Elastic Modulus
≥230GPa
238GPa
Excellent deformation resistance, stable under long-term structural load
Elongation at Break
≥1.7%
1.85%
Enhanced toughness, adaptable to dynamic load working conditions
Weaving Technology
Unidirectional Locked Weaving
Longitudinal Force + Weft Edge Locking
No filament scattering after cutting, construction loss rate < 1%
Available specifications: Regular widths of 10cm/15cm/20cm/30cm/50cm, available in rolls of 100m. We also support engineering customization for non-standard widths, meeting the reinforcement size needs of different components.
Authoritative Qualifications
All performance of the product meets the authoritative standards of the national reinforcement industry. Each batch of products is accompanied by a full set of compliance reports, which can be directly used for engineering approval, completion acceptance, bidding and tendering filing. We reject any non-standard products that do not meet these standards.
1. Applicable national standards: "Code for Design of Concrete Structure Reinforcement" GB 50367-2013, "Carbon Fiber Sheet for Structural Reinforcement and Repair" GB/T 21490-2008, "Technical Code for Safety Appraisal of Engineering Structural Reinforcement Materials" GB 50728-2011
2. Authoritative testing: Possessing CMA and CNAS dual-certified testing reports, with full compliance in mechanical properties, durability, and environmental indicators
3. Industry recognition: We have been serving key projects such as municipal bridges, state-owned enterprise housing construction, old house renovation, and tunnel repair for many years, and our product performance has been verified through large-scale project implementation
4. Process certification: Utilizing a precise yarn locking and shaping process, it has passed specialized tests for acid and alkali resistance, aging resistance, and fatigue resistance, making it suitable for complex outdoor, underground, and coastal working conditions
Core Product Advantages
Drawing on over a decade of on-site construction experience, we summarize the core value of 12K Carbon Fiber Fabric that distinguishes it from ordinary carbon cloth, highlighting its professional advantages in four dimensions: construction, durability, safety, and cost:
1. 12K large fiber bundle raw fiber, more stable bearing capacity: Compared with 6K small fiber bundle carbon cloth, 12K fiber bundle single fiber volume is larger, overall force transmission is more uniform, and there are no local weak points. After reinforcement, the structural bearing capacity is stable, eliminating later cracking and delamination problems, and adapting to long-term dynamic and static load scenarios.
2. Precise edge locking technology, zero construction loss: using high-density weft locking yarn for shaping, longitudinal force fibers are straight and regular, and can be cut freely on site without looseness or flying threads, without the need for additional edge sealing treatment, greatly reducing construction time and material loss, and adapting to batch engineering construction.
3. Ultra thin and lightweight, without changing the structural load of the building: The finished product has a thickness of only 0.111mm, with extremely light weight. After bonding and reinforcement, it does not increase the weight of beams, columns, or floor slabs, does not change the original structural dimensions of the building, and does not affect the net height of the building, perfectly adapting to the needs of old house renovation and load limiting structural reinforcement.
4. Corrosion resistance and durability, suitable for the full scene working conditions: carbon fiber material has the characteristics of acid and alkali resistance, salt fog resistance, UV resistance, anti-aging, no rust, no mildew, compared with steel reinforcement, the service life has been increased by more than three times, especially suitable for coastal humid, underground tunnels, chemical plants and other bad environments.
5. Excellent permeability and high bonding strength: The fabric texture is smooth and transparent, with even pores. When combined with specialized impregnating glue, it can be fully impregnated. The glue has a high degree of fusion with carbon cloth, and after curing, there is no hollowing or delamination. The reinforcement layer has strong overall integrity, and the engineering quality is more guaranteed.
Accurate application scenarios
Based on the structural stress characteristics and engineering working conditions, finely divide the adaptation scenarios, allowing designers and construction parties to quickly match and select models, avoiding mismatches, overfitting, and underfitting problems:
1. Civil building renovation: repair of cracks in old residential floor slabs, upgrade of balcony load-bearing capacity, reinforcement of beams and columns for bending and shear resistance, seismic reinforcement of walls, increase in load capacity for layout renovation, and adaptation of lightweight characteristics to fine construction of home decoration
2. Industrial plant reinforcement: repair of secondary beams and floor cracks, reinforcement of new equipment loads, anti fatigue reinforcement of crane beams, and improvement of roof structure durability
3. Municipal infrastructure projects: reinforcement of highway bridge piers, columns, beams and slabs, anti-seepage reinforcement of tunnel and culvert inner walls, anti-corrosion reinforcement of river slope protection and dock structures
4. Special structural repairs: repair of wooden and masonry structures in ancient buildings, reinforcement of reservoirs, chimneys, and irregular curved structures, and adaptation to special working conditions such as low temperature, humidity, and high corrosion
Layered pasting with interval curing to ensure sufficient bonding strength
Heavy Load Reinforcement
12K 300g Carbon Cloth / Multi-layer 200g Overlay
Main beams, columns, heavy-load bridges and large-scale factory reinforcement
Priority to single-layer 300g cloth for higher stability and less layered hidden risks
After sales and quality control guarantee
Adhere to transparent quality control and standardized after-sales service, eliminate industry chaos, and comprehensively protect engineering rights and interests:
1. Batch full inspection: Each batch of products undergoes a full inspection and testing of mechanical properties, weight, thickness, and weaving process before leaving the factory, with zero non-conforming products leaving the factory
2. Complete documentation: Free certificates of conformity, testing reports, factory qualifications, and construction technical disclosure documents are provided to support project acceptance throughout the entire process
3. Technical empowerment: Equipped with a senior engineering and technical team, providing free selection, scheme optimization, on-site construction guidance, and troubleshooting services
4. Authentic product guarantee: Eliminate false labeling, weight reduction, mixed silk and inferior products. All products are woven with authentic 12K T700 raw silk and support third-party re inspection. One fake product will be compensated with ten yuan
5. Flexible delivery: Standard specifications can be shipped in seconds, customized specifications can be quickly scheduled for production, supporting large-scale engineering orders and vehicle delivery
12K Carbon Fiber Fabric is an engineering grade reinforcement substrate that considers compliance, stability, cost-effectiveness, and durability. Unlike ordinary decorative grade carbon cloth, it relies on 12K industrial large fiber bundle technology, national standard compliance parameters, and tested ground performance to perfectly adapt to various building structure reinforcement projects. From drawing selection, construction implementation to acceptance and archiving, the entire process is traceable, measurable, and traceable, making it a reliable and preferred product for government and enterprise engineering, old house renovation, and infrastructure repair.
Welcome global purchasers to submit your demand via this inquiry page of JUN TENG carbon fiber supplier in China. You can leave your requirements on carbon fiber reinforcement fabric, woven carbon fiber fabric, carbon-carbon materials, specification customization, sample service and bulk order price. Our professional engineers will reply with tailored solutions and quotation within 24 hours.
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