Carbon Fiber - 12K

Carbon Fiber - 1K

Carbon Fiber - 3K

Carbon Fiber 12K Tow Overview

12K carbon fiber tow (12,000 monofilaments per tow) is the industry workhorse for high-volume structural applications — wind blade spar caps, automotive body-in-white, and large composite structures. 12K delivers high fiber volume per ply at lower fabric cost, making it the default for cost-sensitive high-performance parts.

12K Carbon Fiber Specifications

Parameter	Value
Filament Count	12,000 (12K)
Linear Density	800 ± 20 mg/m
Tensile Strength	≥ 4,000 MPa
Tensile Modulus	≥ 230 GPa
Density	1.77 ± 0.03 g/cm³
Typical Fabric Weight	200–600 g/m²
Sizing	Epoxy-compatible, 1.0–1.6%

Applications

Wind turbine blade spar caps and root reinforcement
Automotive body-in-white, chassis, and crash structures
Industrial rollers, beams, and large structural panels
Marine masts, booms, and racing yacht components
Cost-driven high-volume composite parts

GT700-12K Carbon Fiber Tow — Dry-Spun for Filament Winding | JiLin Tangu

GT700-12K dry-spun PAN-based carbon fiber tow — dry-spun for filament winding

Tensile strength ≥4,900 MPa · Modulus ≥235 GPa

Low density 1.77±0.03 g/cm³ · high stiffness & firm handle

For filament winding of hydrogen tanks, pressure vessels, and high-modulus structures

Dry-spun GT700 carbon fiber combines continuous-filament integrity with high stiffness and a firm, straight handle.

GT800-12K Carbon Fiber Tow — High-Modulus Dry-Spun | JiLin Tangu

GT800-12K dry-spun PAN-based carbon fiber tow — high-modulus flagship grade

Tensile strength ≥5,500 MPa · Modulus ≥290 GPa

Low density 1.78±0.03 g/cm³ · high stiffness & firm handle

For filament winding of hydrogen tanks, pressure vessels, and high-modulus structures

GT800 is a high-modulus dry-spun carbon fiber: continuous, low-density, heat and corrosion resistant, fatigue resistant, with a very small thermal expansion coefficient and excellent electrical/thermal conductivity — engineered for the most demanding filament-wound structures.

GX400-12K Carbon Fiber Tow — Wet-Spun | JiLin Tangu

GX400-12K wet-spun PAN-based carbon fiber tow — general-purpose wet-spun grade

Tensile strength 4,200–4,600 MPa · Modulus ≥235 GPa

Low density 1.77±0.03 g/cm³ · soft handle & excellent resin wettability

For prepreg, vacuum infusion (VARTM), and composite reinforcement

Carbon fiber is a continuous filament with excellent mechanical properties, low density, heat and corrosion resistance, fatigue resistance, a small thermal expansion coefficient, and good electrical and thermal conductivity — properties that translate directly into lighter, stronger, and more durable composite parts.

GX500-12K Carbon Fiber Tow — High-Strength Wet-Spun | JiLin Tangu

GX500-12K wet-spun PAN-based carbon fiber tow — high-strength wet-spun grade

Tensile strength 4,600–4,900 MPa · Modulus ≥235 GPa

Low density 1.77±0.03 g/cm³ · soft handle & excellent resin wettability

For prepreg, vacuum infusion (VARTM), and composite reinforcement

As a continuous PAN-based reinforcement, GX500 carbon fiber offers low density, outstanding heat and corrosion resistance, superior fatigue endurance, minimal thermal expansion, and excellent electrical/thermal conductivity — combined here with a higher tensile strength grade for demanding structural applications.

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