SIGRAFIL C. The PAN-Based Carbon Fiber. Carbon Fibers. Broad Base. Best Solutions.

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1 The PAN-Based Carbon Fiber Carbon Fibers Broad Base. Best Solutions.

2 Carbon Fibers & Composite Materials Unique Integrated Value Chain We are SGL Group The Carbon Company, one of the worldwide leading manufacturers of carbon-based products. We have in-depth materials, production, applications and engineering expertise, a comprehensive graphite and carbon fiber-based product portfolio, and an integrated value chain from carbon fibers to composites. We operate close to our customers through a global sales network and state-of-the-art production sites in Europe, North America and Asia. From this Broad Base and supported by our Company philosophy of SGL Excellence, we offer our customers Best Solutions. We are constantly working on new technologies and materials in our Technology & Innovation Center. Our aim is to provide optimum solutions for your future requirements as well. Carbon fibers Fabrics Prepregs Preforms CFRP SGL Group s process expertise covers the entire carbon composites chain from raw materials (precursors), carbon fibers, textile products, prepregs and preforms through to finished components in carbon fiber-reinforced plastics (CFRP), carbon fiber-reinforced carbon (C/C) or carbon fiber-reinforced silicon carbide (C/SiC). Manufactured in our own plants in Europe and North America, our carbon fiber forms the basis of the entire value chain of composite applications. 2

3 The PAN-Based Carbon Fiber Carbon Fibers supplied by SGL Group form the basis of fiber-reinforced composites and are the key components in products used in wind energy generation, in the aerospace and automotive industries, in motor racing and in the manufacture of adhesives and aircraft brakes. Derived from a polyacrylonitrile (PAN) precursor, SIGRAFIL C is a heavy-tow carbon fiber that combines high strength, high modulus of elasticity and low density for maximum performance. SIGRAFIL C is ideal for weaving, prepregging, filament winding, Carbon Fiber-Reinforced Plastic (CFRP) components, advanced composites, multiaxial production, unidirectional tapes, extrusion, pultrusion and other conversion processes. Key benefits of SIGRAFIL C High tensile strength Carbon content >95 % Suitability for reinforcement Excellent electrical conductivity Physiological safety PAN precursor Oxidation Carbonization Sizing Carbonized fiber Production process of SIGRAFIL C Properties of SIGRAFIL C Fiber grade Tow Fib. Density Tensile Modulus Elong. Carbon Tex Epoxy Spool Spool Yield Pallet count Diam. content sizing level weight /length length/diam. weight C27 SI 50K g/cm GPa 227 GPa 1.7 % >95 % % 8.7 kg 279 mm/ 286 m/kg 420 kg lb/in m 76 mm US/Imp 537 Msi 33 Msi 19.3 lb 11 /3 425 ft/lb 925 lb C30 SI 50K g/cm GPa 240 GPa 1.7 % >95 % % 8.7 kg 279 mm/ 286 m/kg 420 kg lb/in m 76 mm US/Imp 580 Msi 35 Msi 19.3 lb 11 /3 425 ft/lb 925 lb C40 SI 24K g/cm GPA 250 GPa 1.6 % >95 % % 4 kg 279 mm/ 625 m/kg 400 kg lb/in m 76 mm US/Imp 635 Msi 36 Msi 9 lb 11 /3 930 ft/lb 882 lb 3

4 Carbon Fibers for Prepregs Carbon Prepregs Major benefits of SIGRAFIL C Reduced production cycle times Ease of processing Epoxy sizing to suit most applications Applications Wind energy industry Industrial engineering Automotive industry Medical technology High-performance sports equipment Anti-ballistic technology Carbon Prepreg materials manufactured using SIGRAFIL C medium or heavy-tow Carbon Fiber combine maximum strength and performance with minimum weight. Optimum handling features make these high-performance materials the products of choice for innovative companies worldwide. Material quality is a crucial factor in modern ultra-lightweight construction from g/m 2 achieving innovative high-tech designs with cost-effective fibers. Typical prepreg properties using SIGRAFIL C 50K Test method Unit Normative reference Result Fabric areal weight g/m² DIN Resin content % DIN Volatiles % DIN < 1 Prepreg areal weight g/m² DIN Typical laminate properties using SIGRAFIL C 50K Test method Normative reference Unit T / C Result Tensile strength 0 DIN EN ISO MPa Tensile modulus 0 DIN EN ISO GPa Elongation DIN EN ISO % Interlaminar shear strength DIN EN ISO MPa

5 Carbon Fibers for Woven Fabrics and Nonwovens Woven Fabrics and Nonwovens Major benefits of SIGRAFIL C Reduced weaving cycle times Ease of processing Can be combined with other yarns Applications Civil engineering Marine technology Industrial applications Carbon Fabrics and Nonwovens manufactured using SIGRAFIL C medium or heavy-tow Carbon Fiber are suitable for high-performance textile products made from carbon. They reflect several de cades of experience we have gained as a leading manufacturer of carbon products. Our common processing methods include wet lamination, molding, RTM and prepregging. Our woven fabrics and nonwovens are suitable for the production of Carbon Fiber-Reinforced Plastics (CFRP), wet lamination processing, RTM molding or prepregging. Our woven structures can be blended with aramid and glass fibers to give hybrid composites. Typical properties of woven fabrics and nonwovens using SIGRAFIL C 24K Unit Value Type of yarns Warp: Carbon fiber; Weft: Combi yarn Nominal weight g/m /- 10 % Type of weave Plain weave Nominal construction yarns/cm Warp: approx. 1.7; Weft: approx. 4 Weight distribution % Warp: approx. 96; Weft: approx. 4 Treatment Heat set Theoretical thickness mm approx Nominal width mm 300/600 +/- 5 % Roll length lm min. 50 m 5

6 Carbon Fibers for Multiaxial Fabrics Multiaxial Fabrics Major benefits of SIGRAFIL C Reduced production cycle times Better properties due to elongation of reinforced fibers Fabric weights from g/m 2 Ease of processing Multiaxial fabrics manufactured using SIGRAFIL C medium or heavy-tow Carbon Fiber enable our customers to achieve higher stability with less fiber. Multiaxial fabrics provide better mechanical properties due to elongated reinforcement fibers. Applications Wind energy industry Marine technology Automotive industry Mechanical engineering High-performance sports equipment Typical properties of multiaxial fabrics using SIGRAFIL C 50K Unit Value Fiber orientation Weight per layer g/m Raw material - Carbon - Carbon Tex 50 K 50K Yam PES Weight, yam g/m 2 7 Weight, overall g/m Tolerance % ±5 6

7 Carbon Fibers for Filament Winding Filament Winding Major benefits of SIGRAFIL C Reduced production cycle times Cost-effective production Ease of processing High fiber content as desired Good wettability with resin Filament winding using SIGRAFIL C medium or heavy-tow Carbon Fiber has proven very versatile in the manufacture of paper rolls, drive shafts, films, LPG/CNG tanks and hydrogen storage systems. Applications Automotive industry Mechanical engineering Typical properties of filament winding using SIGRAFIL C 50K Unit Value Modulus axial N/mm² Fiber volume content % Density g/cm³

8 Brochures SIGRAFIL C - The Carbon Fiber for Thermoplastic Compounds SIGRAFIL C - The Carbon Fiber for High-Temperature Thermoplastic Compounds Contact: Europe SGL Carbon Fibers Ltd. Muir of Ord Ross-Shire IV6 7UA/UK Phone Fax fiberinfo@uk.sglcarbon.de USA SGL Carbon Fibers Ltd West 135th Street Gardena, CA /USA Phone Fax carbon_fibers_ml@hitco.com Free phone CFIBERS Asia SGL CARBON Far East Ltd. 12/F, Shanghai Oriental Plaza, 31 Wujiang Road, Shanghai P.R. China Phone Fax fiberinfo@uk.sglcarbon.de registered trademarks of SGL Group companies /1 1NÄ Printed in Germany This information is based on our present state of knowledge and is intended to provide general notes on our products and their uses. It should there fore not be construed as guaranteeing specific properties of the products described or their suitability for a particular application. Any existing industrial property rights must be observed. The quality of our products is guaranteed under our General Conditions of Sale. Carbon Fibers & Composite Materials SGL Carbon Fibers Ltd. Muir of Ord Ross-Shire IV6 7UA/UK