Basalt fiber is an inorganic mineral fiber extruded from natural igneous volcanic basalt rock. Subjected to extreme temperatures ranging between 1450°C and 1500°C, the rock is liquefied and extruded through platinum-rhodium alloy bushing plates into continuous, ultra-fine filaments. This single-component raw material fabrication path completely bypasses chemical additives, establishing basalt fiber as one of the most environmentally inert and sustainable high-performance reinforcement fibers on Earth.
Compared to traditional glass fibers (E-Glass, S-Glass) and carbon fibers, continuous basalt fiber exhibits a stellar combination of properties: thermal stability, corrosion resistance, high tensile strength, and impressive chemical inertness. It acts as an absolute barrier against aggressive alkaline environments, rendering it the gold standard for concrete reinforcement, marine applications, and structural wraps.
Chemical Class: 100% Natural Igneous Volcanic Silicate Complex
Operating Temperatures: Extremely stable from -260°C up to +700°C
Tensile Strength (MPa): 3000 - 4800 MPa (Surpasses standard steel reinforcing bars by up to 4 times)
Elastic Modulus (GPa): 85 - 110 GPa (Extremely rigid, prevents structural micro-cracking)
Corrosion Properties: 100% impervious to rust, high acid/alkali exposure resistant
Ecological Profile: Fully recyclable, low carbon footprint manufacturing, 100% natural
Founded in 2015 and strategically located in Jiujiang, Jiangxi Province, China Beihai is a premier state-level high-tech enterprise. We are entirely focused on the integrated scientific research, engineering development, mass production, and global commercialization of high-performance basalt continuous fiber and advanced basalt processing equipment.
Through our massive production complexes and proprietary pool of state-of-the-art technological patents, China Beihai has emerged as a premier force in the global basalt continuous fiber space. Our multi-tiered infrastructure yields high-grade outputs that serve highly complex demands in infrastructure, composite materials manufacturing, aerospace, and sustainable transportation globally.
Established Year
Annual Production Capacity
Global Export Footprint
SGS & CE Compliant Quality
At China Beihai Group, we specialize in the engineering of a diverse portfolio of basalt products, including premium basalt fiber mat (both basalt fiber chopped strand mat and specialized basalt plain weave cloth), basalt fiber roving (for direct pultrusion and high-temperature environments), durable basalt fiber yarn, high-tensile basalt fiber chopped strands, and finished infrastructure reinforcements such as basalt fiber rebar, protective sleeves, and high-temp tapes.
Our focus lies on delivering highly integrated, resilient, and eco-friendly structural solutions for global geotechnical engineering, public infrastructure, high-temperature thermal seals, friction materials, and marine architectural contexts. Leveraging specialized surface coupling agent treatment processes, we engineer solutions tailor-made for seamless integration into cementitious structures, high-performance polymers, and heavy-duty composites.
Partnering with China Beihai Group means establishing an active supply pipeline with a leading, ISO-compliant manufacturer of basalt composite innovations. Our absolute commitment to quality control, high chemical yield consistency, and advanced material research separates us in the market. We provide comprehensive technical consulting, raw material characterization data sheets, and custom formulation services tailored to your specialized localized applications.
In the modern industrial procurement landscape, procurement directors face severe pressure to secure raw materials that comply with increasingly strict carbon footprint laws and environmental guidelines. Traditional reinforcement systems, particularly structural steel and glass fibers, suffer from severe limitations under high corrosion, harsh acid, and marine saltwater environments.
This dynamic is sparking a massive structural pivot toward volcanic-origin basalt continuous fiber. The material's innate thermal insulation properties (highly valued in the automotive sector), complete immunity to galvanic corrosion (vital for marine structures), and low manufacturing energy footprints make it the preferred material for next-generation civil engineering, green building designs, and industrial engineering applications.
"Market research indicators project the global basalt continuous fiber market will expand at a double-digit CAGR over the next decade, with primary volume demand scaling significantly across North America, the European Union, and the Asia-Pacific region."
China Beihai Group utilizes cutting-edge smart furnace technology at our automated facility in Jiangxi Province. Our plant features state-of-the-art furnace thermal controls, automated raw basalt rock mineral crushing processes, and continuous filament drawing lines. These advancements ensure consistent filament diameter tolerances and high yield uniformity.
Our direct access to rich volcanic raw material basins throughout Central China, combined with fully integrated internal equipment production, allows us to mitigate upstream volatility. This integration ensures robust, highly resilient global logistics support and unparalleled cost-performance efficiency for all wholesale partners.
Securing high mechanical reinforcement, crack control, and long-term durability in commercial concrete infrastructure.
Extensively applied in custom aircraft interior structural panels, engine insulation blankets, and low-weight components.
Used to construct advanced spacecraft fairings, rocket engine heat shields, and ultra-high-temperature protective panels.
Serving as high-performance basalt rebars and chopped strand meshes to dramatically prevent concrete degradation.
Integrated into exhaust systems, thermal heat shields, brake pads, and structural components to enable lightweight targets.
Ensuring absolute protection against mechanical wear, severe hydrodynamic impacts, and ocean salt-spray corrosion.
Applied in corrosion-resistant industrial pipes, heavy chemical tanks, and thermal pipe insulation systems.
Providing exceptional resistance to harsh sea environment damage and biofouling degradation in deep-sea vessels.
Understanding these precise physical and chemical metrics helps design engineers determine the exact load-bearing, thermal-resistance, and chemical-resistance characteristics for specialized engineering systems.
| Property Parameter | Continuous Basalt Fiber (China Beihai) | Standard E-Glass Fiber | Carbon Fiber (Standard PAN) |
|---|---|---|---|
| Density (g/cm³) | 2.63 - 2.80 | 2.54 - 2.60 | 1.75 - 1.80 |
| Tensile Strength (MPa) | 3000 - 4800 | 2400 - 3400 | 3500 - 6000 |
| Elastic Modulus (GPa) | 85 - 110 | 72 - 76 | 230 - 600 |
| Elongation at Break (%) | 3.1 - 3.3 | 4.5 - 4.8 | 0.5 - 2.0 |
| Operating Temperature Range (°C) | -260 to +700 | -60 to +450 | -50 to +500 |
| Thermal Conductivity (W/m·K) | 0.031 - 0.038 | 0.035 - 0.040 | 8.0 - 70.0 |
| Alkali Resistance (% retention) | 90 - 95% (Excellent) | 50 - 60% (Poor) | 99% (Excellent) |
China Beihai Group operates at the absolute cutting edge of composite materials science. Basalt continuous fiber is highly versatile, but optimizing it for highly specific industrial matrices requires continuous chemical innovation. Our research and development department works alongside academic and materials testing institutes to customize sizing formulations. This ensures that when our basalt roving is integrated into concrete structures or pultruded components, it forms an unbreakable chemical bond.
Through precise geological control of our raw material source quarry, we selectively harvest volcanic basalt rock that contains optimal ratios of SiO₂, Al₂O₃, Fe₂O₃, and CaO. These geological compounds give our final continuous filaments superior acid and alkali resistance, high operational safety thresholds, and structural performance metrics that comfortably surpass those of standard market competitors.
Rigorous raw mineral selection ensures exceptional basalt fiber uniformity.
Specialized chemical coupling agents maximize mechanical performance.
Fully optimized glass-transition control for excellent composite matrices.
Direct-from-factory pricing with highly resilient supply chain guarantees.
While both are silicate-based mineral fibers, basalt fiber is derived from a single-ingredient raw volcanic rock source without additional chemical materials, making it highly eco-friendly. From a performance standpoint, basalt continuous fiber exhibits higher tensile strength (up to 30% higher than E-Glass), an elevated elastic modulus, excellent chemical stability in highly alkaline concrete environments, and a significantly higher continuous operating temperature window (up to +700°C).
Basalt fiber rebar is completely immune to galvanic corrosion, acid attack, and chloride penetration. Unlike traditional steel, it does not rust or expand over time, which avoids internal concrete cracking and subsequent structural spalling. Furthermore, basalt rebar is only 1/4 the weight of equivalent steel reinforcement bars while providing up to 4 times the tensile strength, yielding drastic savings in shipping costs and labor installation times.
We leverage highly automated Industry 4.0 production furnaces at our Jiangxi plant. Each batch undergoes continuous automated checks for filament diameter constancy, sizing distribution density, moisture content, and ultimate tensile yield. We enforce strict compliance protocols, providing verifiable material characterization reports for every shipment.
Basalt continuous fiber is highly recognized as a green industrial material. Because the manufacturing process only relies on melting crushed natural volcanic rock without introducing toxic chemical additives, it emits far less greenhouse gases and consumes significantly lower manufacturing energy than glass fiber, steel, or carbon fiber production chains.
Yes. China Beihai Group offers highly comprehensive customization capabilities. We can tailor the areal weight (g/m²), weaving styles (plain, twill, satin), surface sizing chemistries, mesh grid spacing, and roll dimensions to seamlessly match your precise pultrusion, hand lay-up, or structural retrofitting requirements.
As high-performance systems and smart automated structures scale globally, engineering groups require materials that deliver absolute stability, extreme strength, and high corrosion resistance. Continuous basalt fiber is spearheading a massive materials revolution. From reinforced structural concrete to deep marine platforms and aerospace hulls, volcanic-origin basalt continuous fiber acts as an unyielding foundation. Our latest processing breakthroughs enable greater compatibility with advanced resin matrices, setting new milestones for eco-friendly engineering composites.
Read Full Whitepaper
Beihai Fiberglass
