Carbon & Graphite Textile Yarns
Max Graphite supplies carbon and graphite textile yarns across a comprehensive range of precursor types, filament constructions, and coating configurations — purpose-built for demanding compression packing applications. Our portfolio addresses the full spectrum of industrial sealing requirements: from soft, compliant rayon-based graphite yarns suited to high-speed rotating equipment, to oxidation-resistant PAN-based graphite yarns rated for aggressive chemical service. With tight control over precursor selection, ply count, twist, and coating chemistry, Max Graphite delivers yarn properties matched precisely to your packing design — not generic commodity stock.
Specification of
Carbon & Graphite Textile Yarns
Max Graphite's textile yarn portfolio spans multiple precursor systems, carbon content levels, and construction variables. The table below outlines the primary yarn types and their key defining characteristics to assist initial product selection.
Typical Grade Specifications: All values are typical; custom grades available on request.
Size of
Carbon & Graphite Textile Yarns
Carbon and graphite textile yarns are supplied in standard and custom linear weight ranges to suit a wide variety of braiding equipment and packing cross-sections. The table below provides representative size parameters; custom specifications are available on request.
Contact us for a detailed stock list or to discuss your custom size requirements.
What Are Carbon & Graphite Textile Yarns?
Carbon and graphite textile yarns are multi-filament or staple-fiber yarns produced from carbonized or graphitized precursors — primarily PAN, rayon, or petroleum pitch — and processed to specific carbon content levels, ply constructions, and surface treatments. Max Graphite manufactures and supplies this material category across its full technical range: from standard industrial grades to high-purity, specification-compliant yarns for nuclear, military, and critical process applications. Our supply capability covers both continuous filament and stretch-broken forms, multiple precursor systems, and a broad coating matrix including PFAS-free options — enabling packing manufacturers to source a complete yarn portfolio from a single, technically capable partner.
Properties of Carbon & Graphite Textile Yarns
- High carbon purity — Graphite grades available at ≥ 99% and ≥ 99.5% C, minimizing extractable contamination in sensitive process streams
- Oxidation resistance — Graphitized PAN yarns offer superior resistance to oxidizing media and elevated-temperature service
- Chemical inertness — Resistance across a wide pH range and compatibility with aggressive solvents, acids, and hydrocarbons
- Thermal stability — Functional at operating temperatures well beyond the range of organic fiber-based packings
- Low friction coefficient — Graphite-coated grades reduce shaft wear and enable reliable sealing on rotating equipment
- Thermal conductivity — Dissipates frictional heat at the packing interface, extending service life on dynamic sealing applications
- Coating compatibility — Consistent yarn surface enables uniform uptake of PTFE, colloidal graphite, and PFAS-free graphite coatings
Application of
Carbon & Graphite Textile Yarns
- Compression Packing Braiding — Primary input material for valve, pump, and fitting packings used across process industries
- Pump Sealing — Rotating Equipment — Graphite rayon yarns for high-speed centrifugal pump gland packing requiring low friction and high lubricity
- Valve Packing — Reciprocating and Rotary — PAN and stretch-broken yarn grades for globe, gate, and control valve stem sealing
- Oil & Gas — Upstream and Downstream — Refinery, wellhead, and pipeline valve packings in hydrocarbon and sour gas service
- Chemical & Petrochemical Processing — Sealing solutions compatible with aggressive acids, bases, and solvents at elevated temperature
- Power Generation — Turbine valve and feedwater pump sealing in steam and high-pressure water service
- Pulp & Paper Industry — Packing for digesters, bleaching equipment, and stock pumps in chemically demanding wet environments
- Nuclear & Military Applications — High-purity rayon graphite yarns meeting MIL-P-24583B and equivalent defense specifications
- Marine & Offshore — Packings for seawater-service pumps and valves requiring corrosion-resistant, inert sealing materials
- General Industrial Sealing — Braided packings for HVAC, water treatment, and general fluid-handling equipment