Broad Base. Best Solutions.

Specialty Carbon and Graphite Yarns for Compression Packings

GRAPhITE MATERIALS AnD SySTEMS

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Specialty Graphite and Process Solutions – made by SGL Group.

Advanced material, equipment, and process solutions

Engineered for customers from more than 35 industries

Tailor-made from the most comprehensive product portfolio

In-depth production and material knowledge

Consistent high quality, performance, and service

Attractive total cost of ownership

Broad Base. Best Solutions.

BUSInESS UnIT GRAPhITE MATERIALS AnD SySTEMS

b Winding of finished coated PAN yarns

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Advanced solutions enable our customers to get ahead.SGL Group offers advanced solutions – even for challenging applications. We understand the specific requirements of our customers and combine in-depth production, material, and engineering knowledge with the most comprehensive specialty graphite portfolio. This makes us the partner of choice to leading companies in many different industries.

Exceptional resistance to heat and corrosion, high purity and mechanical strength are just a few of the outstanding properties which our materials offer. Specialty graphite products from SGL Group achieve optimal results where other materials fail. No matter what your specific requirements might be, we will identify the best solution from the most comprehensive range of specialty graphites.

Fine grain graphite: isostatic, vibration- molded, die-molded, extruded

Expanded natural graphite Carbon fiber-reinforced carbon (C/C) Soft and rigid graphite felts Silicon carbide-coated graphite materials

Additionally we use other materials like PTFE, silicon carbide, and specialty metals.

With our portfolio and technical know-how spanning more than 35 different industries, we engineer tailor-made solutions in close partnership with our customers.

SGL Group covers the entire value chain of specialty graphite production, including raw material processing, semi-finished product manufacture, precision machining, purification, and coating. When it comes to engineering of equipment and process solutions our service range makes the difference: We offer mechanical and process design, production, assembly, commis-sioning, and service – all from a one-stop shop.

This is how we control and ensure the consistent high quality, reliability, and performance of our products – and enable our customers to become more competitive. Challenge us. We are there for you worldwide.

Specialty carbon and graphite yarns for compression packings

Innovative solutions for compression packings are essential for the challenging processes in refineries, chemical and power plants. Our expertise in materials and applications and the wide range of products we offer make us a sought-after partner of leading companies.

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Valves

Carbon yarnsGraphite yarnsFoil yarnsGraphite foilsReinforced and unreinforced graphite sheets

Specialty graphites – made by SGL Group.Solutions for compression packings.

Typical applications

Materials made of carbon and graphite

Products of the SGL Group

Static equipment

SIGRAFLEX yarnsSIGRAFLEX® flexible graphite

Materials working in aggressive environments whether it is high temperature and highly oxidizing conditions, high pres-sure, chemically aggressive or abrasive fluid media play

an essential role in ensuring people‘s safety, efficient plant and equipment operation and environmental protection.

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Carbon yarnsGraphite yarnsFoil yarnsGraphite foilsReinforced and unreinforced graphite sheetsSeal ringsBearings

PumpsAgitatorsMixers

�+�More information can be found at www.sigraflex.com

Rotary and reciprocating equipment

SIGRAFLEX yarnsSIGRAFLEX® flexible graphiteSIGRAFINE® die-molded, isostatic carbon and graphite

SPECIALTy GRAPhITE SOLUTIOnS FOR COMPRESSIOn PACkInGS

Besides SIGRAFLEX foils and sheets for sealing applications, SGL Group also offers a broad portfolio of different SIGRA FLEX yarns used for compression packings.

Compression packings for sealing rotary or reciprocating equipment made from SIGRAFLEX yarns play an important role in many industries including:

Refining Chemicals and petrochemicals Power generation including nuclear power generation Pulp and paper Mining Waste water and service industries Military

Whatever the requirement of an application for a packing yarn might be, SGL Group’s yarns portfolio contains the product to meet those needs.

For example flexible graphite packings produced from SIGRAFLEX APX2 yarn allow for almost universal plant wide use. Braiders are able to secure approval for their respective braided gland packing based on SIGRAFLEX APX2 yarn to API, API Firesafe and BAM (for gaseous oxygen applications) standards.

�+�SIGRAFINE® is the new brand name for our fine-grain  graphites, previously known under the names RINGSDORFF®, SIGRAFORM®, SIGRAMENT® and CRYSTA-SIL®.

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SIGRAFLEX carbon and graphite packing yarnsOur product portfolio covers a wide range of different packing yarns varying in

Precursor

Carbon content

Number of plies or filaments

Twist

Coating

This allows us to always identify the best solution for your packing requirements and enables you to most effectively meet the sealing demands of your process to become more competitive.

7CARBOn AnD GRAPhITE yARnS

Specialty carbon and graphite yarns for compression packings

b Packing rings made of yarns

Compression packings made from SIGRAFLEX specialty carbon and graphite yarns are among the most versatile packing materials offering a unique combination of proper- ties such as superior sealability and heat dissipation. They perform in high temperatures and are almost chemically inert. In addition the packings show high speed capability as well as very good resilience and abrasion resistance. Also they are not prone to softening or extrusion at high temperatures.

End users also benefit from compression packings construct-ed from highest quality and purity SIGRAFLEX yarns since they offer reduced process contamination and longer service lives.

The comprehensive SIGRAFLEX yarns portfolio for braided packings ranges from continuous filament yarns grades made from precursors such as polyacrylonitrile (PAN) and rayon to staple fiber PAN yarns and flexible graphite foil yarns rein-forced with INCONEL wire. SGL Group offers both carbon and graphite yarn grades with various yarn weights, number of plies, twists, and coatings.

¹⁾ Data of wire reinforced foil yarn unless otherwise stated²⁾ Base yarn without coating / reinforcement³⁾ Temperature limits are based on yarns without coating and need to be understood as approximate maximum limits. At operating temperatures

close to the given values life time might be limited depending on chemical resistance, actual equipment temperatures, operating conditions and design. Please check our technical guidelines regarding thermal stability and ask for advice for temperatures close to the limit.

4⁾ Operating conditions, depending on media

SGL Group’s yarn portfolio

Product characteristics Units

Precursor

PANPAN

stretch broken PANPAN

stretch broken Rayon Graphite foil¹⁾Type Carbon Carbon Graphite Graphite Graphite GraphiteCarbon content²⁾ % ≥ 94 ≥ 94 ≥ 99 ≥ 99 ≥ 99.9 ≥ 98-99.85

Temperature³⁾° C < 400 < 400 < 500 < 500 < 450 < 580° F < 752 < 752 < 932 < 932 < 842 < 1076

pH range⁴⁾ 2-12 2-12 1-14 1-14 1-14 0-14Tensile strength very high high very high high moderate lowTwist S, Z, ribbon S, Z S, Z S, Z S, Z

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SIGRAFLEX carbon and graphite packing yarns provide many advantages

High thermal conductivity

Outstanding chemical resistance

Enhanced oxidation resistance

High temperature resistance

High degree of purity

High mechanical strength

High compressibility and flexibility

Low friction characteristics

Extended service life, leakage control and reduced packing maintenance

SIGRAFLEX carbon and graphite fiber yarns Enhanced oxidation protection, chemical and thermal resistance.

9CARBOn AnD GRAPhITE yARnS

b SIGRAFLEX carbon and graphite fiber yarns

Braided packings manufactured from SIGRAFLEX carbon and graphite fiber yarns have proven to be an effective solution to various established sealing applications. Without doubt the yarn is responsible for extending the performance of the packed gland.

Our fiber yarns provide enhanced corrosion and oxidation protection, as well as excellent chemical and thermal resis-tance and therefore ensure greater reliability and longer service life of the packing.

To cover the many compression packing applications SGL Group offers a comprehensive portfolio of different yarn qualities and types. For example carbon fiber yarns display excellent mechanical strength and toughness.Compression packings made from them are highly resistant to abrasive media and have the ability to handle high com-pressive loads.

Graphite yarns on the other hand feature a higher carbon content and a higher ordered crystal structure. This leads to packings showing improved lubricity as well as higher thermal conductivity supporting dissipation of frictional heat. Also graphite fiber yarns exhibit a higher thermal stability in comparison to carbon fiber yarns.

Compression packings made from carbon and graphite yarns offer distinct advantages over the mechanical seal with regards to cost, space, product selection, installation, main-tenance, and trouble-shooting. For example with careful adjustment a packed gland can usually be kept running until it is convenient for the plant to be stopped and the compres-sion packing replaced thus avoiding untimely, expensive and inconvenient shutdowns.

c SIGRAFLEX PAN yarn c SIGRAFLEX rayon yarn

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SIGRAFLEX fiber yarns are also easy to handle. They allow a variety of coatings and finishings to be applied serving not only to aid the braiding process but also enhance the ultimate sealability whilst reducing frictional heat. Coatings available with SGL Group fiber yarns include graphite, polytetrafluoro-ethylene (PTFE) or combinations of these as well as high- purity graphite for nuclear and military applications.

c SIGRAFLEX PAN stretch broken yarn

Material data for our SIGRAFLEX carbon standard yarns¹⁾

Typical properties Test Methods Units

LCC21TG49-X CHT-07S1-LT5 CHF-08Z1-LT5 CSP9TG18-X SContinuous filament

ribbon yarn Continuous filament

twisted yarn Continuous filament

twisted yarnStretch broken

twisted yarn Precursor PAN PAN PAN PANCoating Graphite, PTFE³⁾ Graphite, PTFE Graphite, PTFE Graphite, PTFE Carbon content²⁾ ASTM D5373 % ≥ 94 ≥ 94 ≥ 94 ≥ 94 Ash content ASTM C561 % ≤ 0.5 ≤ 0.5 ≤ 0.5 ≤ 0.5Moisture content ASTM C562 % ≤ 0.5 ≤ 0.5 ≤ 0.5 ≤ 0.5Density ASTM D3800 g/cm3 1.85 1.83 1.83 1.82Linear weight ASTM D1907 g/m 1.40 0.70 0.83 1.85

Break strength ASTM D2256kg 45 22 27 50lb 100 50 60 110

Coating content % 43 42 13 18

Twist ASTM D1423TPI 1.8 1.5 1.2

TPM 72 59 47Available twists S, Z S, Z S, Z

¹⁾ Other grades are available on request ²⁾ Base yarn without coating ³⁾ Material can be ordered also with additional black pigment coating

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Material data for our SIGRAFLEX graphite standard yarns¹⁾

Typical properties Test Methods Units

GHF08-S1-LT5 GMCP21-G8-S GSP3T5-S(500) GPF14-S17-LT5Continuous

filament yarn Continuous

filament yarn Stretch broken

twisted yarn Continuous

filament yarn Precursor PAN PAN PAN Rayon Coating Graphite, PTFE Graphite Graphite, PTFE Graphite, PTFE Carbon content²⁾ ASTM D5373 % ≥ 99 ≥ 99 ≥ 99 ≥ 99.9 Ash content ASTM C561 % ≤ 0.5 ≤ 0.5 ≤ 0.5 ≤ 0.1Moisture content ASTM C562 % ≤ 1.0 ≤ 1.0 ≤ 1.0 ≤ 1.0 Density ASTM D3800 g/cm3 1.67 1.78 1.73 1.48Linear weight ASTM D1907 g/m 0.88 0.88 1.70 1.60

Break strength ASTM D2256kg 45 45 45 14lb 100 100 100 30

Coating content % 14 8 5 15

Twist ASTM D1423TPI 1.2 1.8 1.7 1.6

TPM 47 71 65 63Available twists S, Z S, Z S, Z S, Z

CARBOn AnD GRAPhITE yARnS

¹⁾ Other grades are available on request ²⁾ Base yarn without coating

c SIGRAFLEX PAN yarn c SIGRAFLEX PAN stretch broken yarn c SIGRAFLEX rayon yarn

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SIGRAFLEX foil yarns For high temperature, high oxidation, and high corrosion environments.

c SIGRAFLEX APX2 yarn

We manufacture foil yarns from SIGRAFLEX APX2 foil offering maximum protection against oxidation, SIGRAFLEX Z and SIGRAFLEX HP foil with very low ash contents, and SIGRA-FLEX E grade foil. These yarns meet today’s higher performance specifications and latest purity levels.

The oxidation rate of SIGRAFLEX APX2 foil in air is ≤ 1 % weight loss per hour at 670° C (1238 ° F). As a consequence, SIGRAFLEX APX2 yarn provides the highest oxidation resistance compared to any other braidable flexible graphite yarn and therefore ensures the compression packing‘s greater reliability and longer service life.

Due to the low level of impurities of the base foil, SIGRAFLEX APX2 yarn is of high purity meeting stringent performance requirements.

Even higher purity yarns with lower halogen levels based on SIGRAFLEX Z and HP foils are available which meet the purity and performance requirements of the nuclear industry.

The flexible graphite yarn itself combines the well established low friction characteristics with a flexibility and resilience that braiders and end users request. It also exhibits excellent chemical resistance pH range 0 – 14, it is non-hardening due to the absence of binders and glues, and possesses a high thermal conductivity thus enabling the efficient transfer of frictional heat energy away.

13CARBOn AnD GRAPhITE yARnS

c SIGRAFLEX APX2 yarn

SIGRAFLEX flexible graphite foil is over knitted with a cor-rosion resistant 100 µm diameter INCONEL wire providing superior tensile strength and pliability as well as pressure and extrusion resistance. The wire is specially treated as not to adversely affect the high purity properties and high tempera-ture performance of the flexible graphite yarn or the braided packing made from it.

APX2 foil yarn is made in two different weights (4 g/m or 6 g/m) to suit the broadest possible range of packing cross sections.

Material data for our SIGRAFLEX reinforced flexible graphite standard yarns¹⁾

Typical properties Test Methods Units SIGRAFLEX APX2 yarn

SIGRAFLEX Z yarn

SIGRAFLEX HP yarn

SIGRAFLEX E yarn

Base SIGRAFLEX APX2 foil

SIGRAFLEX Z foil

SIGRAFLEX HP foil

SIGRAFLEX Efoil

Reinforcement INCONEL 601 INCONEL 601 INCONEL 601 INCONEL 601 Reinforcement diameter µm 100 100 100 100Carbon content²⁾ ASTM D5373 % ≥ 98 ≥ 99.85 ≥ 99.8 ≥ 99Ash content²⁾ ASTM C561 % ≤ 2 ≤ 0.15 ≤ 0.2 ≤ 1.0 Moisture content²⁾ ASTM C562 % < 1 < 1 < 1 < 1 Sulfur content²⁾ ASTM D4239 ppm < 300 < 300 < 300 < 300 Chloride content²⁾

ASTM D4327ppm ≤ 25 ≤ 10 ≤ 10 ≤ 10

Fluoride content²⁾ ppm ≤ 10 ≤ 10 ≤ 10 ≤ 10Total halogen content²⁾ ppm ≤ 70 ≤ 40 ≤ 40 ≤ 40 INCONEL content % 35 35 35 35

Bulk density3⁾ ASTM C559g/cm³ 1.12 1.00 1.12 1.00lb/ft³ 70 62.4 70 62.4

Linear weight ASTM D1907 g/m 4 or 6 4 4 4

Break strength ASTM D2256kg 8 8 8 8lb 18 18 18 18

Weight loss in air ²⁾ (4 hours@670° C) LECO TGA %/hour ≤ 1 < 4 < 4 < 4

¹⁾ Other grades are available on request ²⁾ Graphite only3⁾ Bulk density of graphite precursor material

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We will find the best solution – in partnership with you.The fascinating potential of carbon as a material excites us and inspires us to develop optimum solutions in partnership with our customers.

With our comprehensive material portfolio and valuable specialist know-how, we can manufacture tailored products – even for the most challenging applications.

Consistently high quality, a global presence, innovative strength, and the extensive experience of our employees make us a reliable partner to our customers.

Whatever challenges you face, together we will find the best solution.

15SGL GROUP – ThE CARBOn COMPAny

b Winding of coated yarns

SGL Group – The Carbon Company. A leading global manufacturer of carbon-based products.

Unique product portfolio Innovative technologies and solutions Production sites close to sales markets Technology & Innovation Center in Germany with international networks

We have wide-ranging expertise in raw materials, advanced manufacturing processes, and long-standing application and engineering know-how. We have a comprehensive portfolio of carbon, graphite, and carbon fiber products and our integrated value chain covers everything from carbon fibers to composites. With a global sales and distribution network and modern production sites in Europe, North America, and Asia, we are close to our customers throughout the world.

We use this broad base to offer our customers the best solutions possible. That’s how we live up our claim: Broad Base. Best Solutions. This claim is also upheld by our corporate SGL Excellence philosophy of continuous improvement.

�+�More information can be found by visiting: www.sglgroup.com

sglgroup sglgroup

® registered trademarks of SGL CARBON SEINCONEL® is a registered trademark of Special Metals Corporation 05 2017/0 2NÄ Printed in GermanyThis information is based on our present state of knowledge and is intended to provide general notes on our products and their uses. It should therefore not be construed as guaranteeing specific properties of the prod-ucts 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”.

Contact

Graphite Materials & SystemsSGL CARBON GmbH Soehnleinstrasse 8 | 65201 Wiesbaden/Germanywww.sglgroup.com/gms

EUROPE/MIDDLE EAST/AFRICASGL CARBON GmbHWerner-von-Siemens-Strasse 1886405 Meitingen/Germanysigraflex-europe@sglgroup.com

ASIA/PACIFICSGL CARBON Far East Ltd.151 Huan Cheng Dong LuShanghai Fengpu Industrial Development Zone 201401 Fenxian/PR Chinasigraflex-asia@sglgroup.com

AMERICASSGL TECHNIC Inc.Polycarbon Division28176 No. Avenue StanfordCA 91355 Valencia/USAsigraflex-americas@sglgroup.com