High Modulus 55MSI Carbon Fiber Yarn(HM55-12K)

Description

1. Product Overview

The High Modulus 55MSI Carbon Fiber Yarn (HM55-12K) is a premium-grade, polyacrylonitrile (PAN)-based carbon fiber tow featuring a tensile modulus of 55 million psi (379 GPa) and a 12,000 filament count. It is primarily engineered for aerospace, defense, and high-performance automotive structural components where stiffness-to-weight ratio is mission-critical. The key value proposition lies in its exceptional modulus combined with industrial-scale processability—enabling lighter, stiffer composite structures without the cost premium of ultra-high-modulus (UHM) fibers. Strategically, HM55-12K fills a vital market gap between standard intermediate-modulus (IM) fibers and exotic UHM grades, offering a balance of mechanical performance, handling durability, and cost efficiency for serial production.

2. Key Specifications & Technical Characteristics

• Material Composition: PAN-based carbon fiber, >92% carbonization, surface-treated with proprietary epoxy-compatible sizing (1.2–1.5% by weight)

• Purity/Grade: Aerospace-grade precursor; ash content ≤0.05%

• Physical Characteristics:

  • Filament count: 12,000 (±2%)

  • Tensile modulus: 55 MSI (379 GPa) nominal

  • Tensile strength: 580–620 ksi (4.0–4.3 GPa)

  • Density: 1.81 g/cm³

  • Filament diameter: 5.2 µm (±0.2 µm)

  • Linear weight: 0.80 g/m (800 tex)

• Packaging Options:

  • Standard: Cardboard bobbins with spiral-wound protection; net weight 4 kg per bobbin

  • Bulk: Jumbo packages (12 kg) on plywood reels for automated tape laying (ATL)

  • Custom: Vacuum-sealed foil liner + desiccant for marine/high-humidity logistics

• Shelf Life: 24 months from manufacture when stored at 15–25°C, ≤60% RH, in original sealed packaging

3. Core Industrial Applications

• Primary Industries: Aerospace (primary/secondary structures), defense (rocket motor casings, UAV spars), high-performance automotive (monocoques, drive shafts), industrial robotics (end-of-arm tooling), and wind energy (longerons)

• Specific Use Cases:

  • Aircraft wing ribs & stringers – Replaces IM7 with 18% higher stiffness at same weight, reducing buckling risk

  • Satellite support structures – Near-zero thermal expansion mismatch with metal inserts (CTE ≈ -0.4 ppm/K)

  • Driveshafts for electric vehicles – Critical speed increases by 22% compared to standard 33MSI fibers at same outer diameter

• Performance Advantage: Delivers 55 MSI modulus with filament toughness that allows weaving, braiding, and filament winding without excessive filament breakage (unlike 65+ MSI grades). Unlike prepreg-only UHM fibers, HM55-12K processes on standard creels and impregnation lines, reducing capital friction.

4. Competitive Advantages

• Quality Consistency: Every lot is nondestructively tested via laser profilometry and ultrasonic modulus mapping; lot-to-lot coefficient of variation (CV) for modulus ≤2.5% (industry average ≤5%)

• Supply Reliability: Dual-source production lines (Japan + South Korea) with 12-week lead time; safety stock of 120 MT held in Rotterdam and Houston

• Logistics Capability: Temperature-controlled air freight option for JIT; ocean freight with real-time humidity trackers

• Price Competitiveness: 14–18% lower cost per MPa/m³ than comparable 55MSI competitors (e.g., Toho Tenax UMS45 or Toray T1100G on a modulus-adjusted basis)

• Sustainability & Compliance: Precursor from bio-advantaged acrylonitrile (up to 12% bio-carbon); REACH and RoHS compliant; EOL recyclability via pyrolysis (fiber recovery >85%)

• Technical Support: Free finite-element analysis (FEA) card generation (Orthotropic elastic properties); onsite trial winding and composite laminate validation with 48‑hour reporting

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ):

  • Standard packaging (4 kg bobbins): 100 kg

  • Jumbo packages (12 kg reels): 250 kg

• Bulk Loading Capacity: 20 MT per 20-foot dry container (palletized, 24 jumbo reels or equivalent)

• Load factor per container: 20 MT net weight (uses ~85% volume; ventilation gaps preserved)

• Pricing: Available on request via strategic supply agreement (volume tiers: 250 kg, 500 kg, 1000 kg, and 20+ MT annual offtake)