High-performance parts for pumps, compressors, and turbines

BEARINGS AND SEALS | ENGINEERED MATERIALS

ROC Carbon Company manufactures a wide variety of carbon/graphite and PTFE seals,

rings, bearings, and other high-precision wear parts for compressors, turbines, motors,

centrifugal pumps, and industrial fans and blowers. We supply parts to original equipment

manufacturers, to repair shops, and to end users—refineries, petrochemical and power

plants and general process industries—and their maintenance and repair departments.

ROC Carbon has the capability to mold and supply carbon/graphite raw stock and custom-

formulated, high performance, PTFE and PEEK composites. We also machine metals,

including exotic alloys, related to sealing devices.

ROC Carbon's engineering support group includes the capability to design or modify seals

and other parts to meet individual requirements, field consultation, installation assistance

and follow-up to assure proper performance. Recommended solutions are based on years of

experience with virtually all makes and types of equipment. Every effort is made to provide

Total Customer Satisfaction.

ROC Carbon began in 1956 as the first carbon/graphite parts supplier in the southwestern

United States. Our initial customers were the many process plants along the upper Texas

Gulf Coast, and for many years, companies such as Dow, ExxonMobil, Chevron, Texaco,

and Hoechst Celanese have honored us with blanket purchase order status. In the 1980s, our

market area expanded to include most of the continental United States, and more recently

the international marketplace. In addition to the refining and chemical processing industry,

ROC Carbon products find application wherever there is large rotary equipment, including

the worldwide marine industry.

Since our beginning, ROC Carbon's success has been built on fast delivery of critical parts.

ROC has a 98 percent on-time delivery record since 1990, including emergency shipments.

In addition to an inventory of commonly used carbon grades, we also manufacture

proprietary high-performance raw material. We respond quickly without sacrificing

competitive pricing or the highest level of quality, and we provide one-source accountability

to our customers.

The success of ROC Carbon's Quality Program is reflected in our ISO 9001 certification

since 1999.

ROC Carbon Company operates from a 30,000 sq ft facility in Houston, Texas. Our

commitment to employee safety is exemplified by the fact that the company has incurred

only four lost-time accidents since 1982.

ROC CARBON COMPANY

ROC Carbon Company manufactures machined or molded mechanical parts made from the following materials:

• Graphite• Carbon/graphite of various grades, including metal-impregnated and resin-impregnated• PTFE materials, virgin polymer or filled• PEEK materials, virgin or filled • Ryton• Metals, both common and exotic (Inconel, Monel, titanium, etc.)• Other plastics

Capabilities• Finished parts• Engineering consultation• Impregnation• Carbon/graphite, PTFE and PEEK raw material inventory• Contract machining• Seal repair• Lapping

FacilitiesOur manufacturing plant can accommodate either small-quantity, "quick-turnaround" orders or longer lead time,high-volume production runs.

Types of Products

PRODUCTS AND CAPABILITIES

REPLACEMENT PARTS

• Ball valve seats• Bearings and bushings• Carbon rotors• Compressor packing• Mechanical seal carbons• Metal-filled carbon/graphite parts• Nozzles• Pillow block bearings

• Rotary joints• Seal rings• Sleeves• Metal-banded seals and bearings• Spiral oil groove• Press fit and shrink fit service• Piston rings• Piston rider rings

• Turbine rings• V packing• Washers• Wear shoes• Rotary kiln seals

We manufacture replacement carbon/graphite, PTFE, and metal parts for the following rotating andreciprocating equipment:

Pumps

Reciprocating Compressors• Gardner-Denver• Sullair• Westinghouse

Fans and Blowers• ABB Flakt Garden City• Beloit• Green (Ecolaire)• Hoffman• Barron

Centrifugal and Axial Compressors

Rotary Steam Joints• Maier Gmbh• Johnson

Steam Turbines

• Allis-Chalmers• Bingham• Borg-Warner• Byron Jackson• Crane• Dresser• Durion• FMC• Goulds

• Houdaille• Luwa• Pacific• Peerless• Roper• Sharples• Union• Viking• Worthington

• Carling• Coppus• Dean Hill• Delaval• Elliott• General Electric

• Murray• Terry• Westinghouse• Whiton• Worthington

• Allis-Chalmers• Atlas Copco• Carling• Carrier• Chicago Pneumatic• Clark (Dresser, Inc.)• Delaval

• Elliott• Ingersoll-Rand• Joy• Siemens Company• Sulzer Brothers• Westinghouse• York

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Carbon/graphite is the ideal material forsteam turbine packing rings, and ROCCarbon is the ideal source for high-performance, segmented packing rings.Our rings feature precision manufacturingand special material grades for optimumsealing performance and service life.

Materials Turbine packing materials are from ourMaterials Group C graphite and Group Fcarbon/graphite grades. These gradeshave a fine-grain structure with excellentmechanical properties. The material canbe impregnated with an anti-oxidizing saltto extend service life at higher operatingtemperatures. Retaining (“garter”) springsare made of stainless steel or Inconel (fortemperatures above 700° F). Stops aretypically made of cadmium-plated steel orstainless steel.

Precision manufacturing Sealing effectiveness of ROC Carbonturbine rings is achieved by a combinationof careful design and painstakingcraftsmanship in manufacturing. Shaftclearance calculations take into accountthe coefficient of thermal expansion of boththe shaft material and the selected carbon/graphite grade as well as the exactoperating temperature. Typical segmentends are either overlap or light-tight butt

joints, and each joint is matched andmarked. Ring faces are given acommercial lap finish.

AvailabilityROC Carbon maintains an extensiveinventory of the most popular packing ringstyles. Over the past 40 years, we havecompiled a comprehensive database of20,000 steam turbine model numbers andpart numbers. If you can supply eithernumber, we can quickly determine thecorrect ROC part number and respondwith a quote or ship the part immediately ifit is in stock. Nonstandard and obsoleteparts can be manufactured and deliveredin ten working days for routine orders. Foremergencies, many special orders can beshipped in a day or less.

ROC Carbon’s engineering staff isavailable to help you evaluate sealproblems and to recommend solutionsinvolving seal geometry and material. Fornonstandard parts for modified machines,we will recommend the proper turbine ringID if you furnish steam conditions and shaftsize.

CARBON/GRAPHITE TURBINE PACKING RINGS

Straight OD profile Angle OD profile

Lap joint Butt joint

ROC Carbon manufactures carbon/graphite seal faces to OEM specifications,working from your drawings or samplesand using the same high-quality materialsand tolerances that original equipmentmanufacturers use. Styles include bothsegmented and one-piece seals. ROC isexperienced in machining intricatedetails, such as flow channels and ports.Our lapping capabilities encompass bothcarbon and hard faces up to 20 inches indiameter and flatness as low as 1 heliumlight band. We can insert the carbonseals in metal housings (machined by usor furnished by you) by heat shrink fittingor by using specialty adhesives.

Seal repair serviceWe also provide a comprehensive sealrepair service for worn seals. The serviceincludes inspection, cleaning, replacingthe carbon seal face, re-lapping the hardface, and replacing the o-rings. Call oremail for details.

ROC Carbon’s engineering staff isavailable to help you evaluate sealproblems and to recommend solutionsinvolving seal geometry and material.

CARBON/GRAPHITE SEAL FACES

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ROC Carbon self-lubricating bearings andbushings are available as standardreplacement styles or custom-designedparts for specific operating problems.Parts range from simple sleeve bushings tocomplex styles incorporating notches,grooves or metal reinforcing sleeves.

High-performance materials Carbon/graphite grades selected shouldbe compatible both with the fluids beinghandled and the operating parameters.The typical grades used are as follows:

• Material Group A is resin-impregnated forchemical applications

• Material Group B with anti-oxidantimpregnation is used for higher operatingtemperatures

• Both Material Group C and MaterialGroup F are used in general-purposeapplications

• Material Group E is metal-impregnatedfor improved heat dissipation, wear, andstrength characteristics. Depending onthe application, various types of metal-impregnation can be used.

ROC Carbon also manufactures metal-backed carbon/graphite bearings for

extreme service. The metal is selected tohave good corrosion resistance, thermalconductivity, and other properties asrequired by the service. Coefficient ofthermal expansion is a factor in metalselection due to the difference inexpansion coefficients of metal andcarbon/graphite materials.

Press fitting and shrink fitting For metal-reinforced styles, the methodused to assemble the carbon into themetal housing depends on the carbongrade used, the metal selected, and theoperating temperature. Press fitting isgenerally used for low-temperatureapplications, where relatively lowinterference is needed to keep the carbonfrom rotating independently. Shrink fitting isused for high-temperature applicationsrequiring greater interference to preventcarbon rotation.

ROC Carbon’s engineering staff can helpyou evaluate bearing and bushingproblems and recommend solutionsinvolving seal geometry and material. Fornonstandard parts for modified machines,we can recommend the proper bore sizesand materials for optimum performance.

CARBON/GRAPHITE BUSHINGS AND BEARINGS

CARBON /GRAPHITE COMPRESSOR RINGSROC Carbon Type MB carbon/graphitecompressor seal rings are typically double-face seals that provide a critical seal toprevent fugitive emissions. The seals areinstalled over the shaft, sandwichedbetween the rotating seal ring andstationary sleeve. The hardness of carbonand lubricating properties of graphitecombine to deliver long service, typicallyone to two years. Type MB compressorseal rings have an outer metal ring toreinforce the carbon/graphite and preserveseal geometry at high speeds.

ROC metal-backed seals are available inboth standard replacement styles and incustom configurations to solve specificoperating problems.

Precision ManufacturingSeal geometry is extremely important toservice life. The two seal faces must beidentical so that the seal rotates at one-halfspeed relative to the rotating seal ring,subjecting both seal faces to the samewear rate. If not identical, one seal face willwear excessively, shortening seal life. ROCseal surfaces are lapped and polished towithin 3 helium light bands (less than 4millionths of an inch) of perfect flatness foroptimum sealing performance. Precisemachining also produces perfectly roundseals, preventing vibration that couldcause premature seal failure.

Shrink Fitting and Stress Relieving To prevent stress buildup that canshorten service life, ROC Carbon followsa proprietary procedure that involvesshrink fitting the metal ring over thecarbon/graphite, followed by full stressrelieving.

To further assure optimum geometry,larger ROC Carbon Type MB seal ringsare shipped with a carbon/graphite plugthat helps prevent seal damage duringstorage and handling. The plug isremoved at installation.

Materials Carbon/graphite grades are chosen to becompatible with the fluids being handledand with the mating seal surfaces.Typical carbon grades used are in ourMaterials Group A, with ShoreSchleroscope hardnesses ranging from 77to 95. For operating temperatures above650° F, high-temperature-treated or metal-impregnated carbon/graphite is used.

Metal for the reinforcing ring is selected tomatch the coefficient of thermal expansion,of the carbon/graphite, to preventunwanted stress buildups during thermaltransients. The metal also has theappropriate corrosion resistance for theintended service.

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ROC CARBON carbon/graphitematerials combine the superiorstrength, hardness, and wearresistance of carbon with the naturallubricity of graphite. These chemicallybonded carbon materials are strongand thermally stable and are inert inmost chemical and corrosiveapplications. When even highermechanical properties or imperviousmaterials are required, materialperformance properties can beenhanced by special impregnation withresins or metals. These impregnatedcarbon grades offer maximumresistance to corrosion, wear, andoxidation.

Many of the grades described beloware proprietary formulations developedand manufactured only by ROC CarbonCompany. Also, the grades presentedin this guide are only a representativesampling of our many grades. Pleasecall for information on other grades.

In general, ROC Carbon carbon/graphite seals and bearings are usedwhere extreme operating temperaturesand/or corrosive fluids would causeconventional lubricants to decompose,where lubricants would contaminateprocess fluids, and where equipment

design makes conventional lubricatingsystems too expensive to install andmaintain. Nonlubricating applicationsfor which ROC Carbon suppliescarbon/graphite grades includeelectrodes and brazing boats, jigs, andfixtures.

How to use this GuideTo select grades for further evaluation,start with Table 1, which presents ourgeneral grade recommendations bothby application and by operatingconditions.

Next, use Table 2 to review the physicalproperties of the grades you chosefrom Table 1. To check for chemicalcompatibility by Corrosion Resistance(CR) Group, use Table 3 forcompatibility by chemical family orTable 4 for compatibility with specificchemicals.

For additional information on the listedgrades or on other available grades,please contact ROC Carbon TechnicalServices.

Table 2 - Physical Properties of Selected Grades

1Composition CodesB BabbitBr BronzeC CarbonCu CopperG GraphiteI ImpregnationNiCr Nickel chromeX Oxidation impregnationSb Antimony

2HRB

APPLICATIONSBearings, bushings

R-122, R-191, R-203, R-204, R-208, R-211, R-307, R-383, R-391

Brazing boats, jigs, fixturesR-320, R-383

SealsR-122, R-124, R-203, R-208, R-211, R-307

Turbine ringsR-320, R-383

Piston rings, rod packingR-122, R-204, R-208, R-211, R-383

ElectrodesR-320, R-383

OPERATING CONDITIONSHigh temperature

R-422, R-443Cryogenic service

R-122, R-124, R-208, R-211, R-422, R-443Acids

R-122, R-124, R-208, R-211, R-307, R-422

Note: The physical properties of ROC Carbon grades may vary in relation to the molded part size and configuration; theabove values are typical and should be considered only as a guide or reference.

The following suggestions are based on years of application experience. However, they should beused only as a starting point. For final recommendations, consult ROC Technical Services.

TABLE 1 - General Grade Recommendations

Material CR Grade Composition Apparent Hardness Transverse Strength Compressive Modulus of Coefficient of Temperature LimitGroup Group Code1 Density Shore Strength Elasticity Thermal Expansion Oxidizing Atmos. Inert Atmos.

gm/cc Schleroscope PSI MPa PSI MPa 106 PSI x10–6/in/in/°F °F °C °F °C

A 2 R-122 CGI 1.82 84 9,300 64 30,000 207 3.3 2.9 500 260 500 2603 R-124 CGI 1.90 90 12,000 83 24,000 165 2.9 2.7 500 260 500 2602 R-208 CGI 1.80 101 10,100 70 31,900 220 3.7 2.7 400 205 400 2052 R-211 CGI 1.87 87 11,300 78 36,500 245 3.2 3.1 480 250 480 2502 R-307 CGI 1.85 77 11,000 76 27,000 186 2.3 2.6 500 260 500 260

B 4 R-422 GX 1.85 55 5,500 38 14,000 97 1.2 2.1 1,200 650 1,600 8704 R-443 CGX 1.80 90 8,000 55 30,000 207 2.4 2.5 1,000 540 1,500 815

C 1 R-320 G 1.64 45 2,700 19 5,500 38 1.6 1.5 750 400 5,000 2,7601 R-383 G 1.70 45 4,200 29 10,000 69 1.2 1.7 800 425 5,000 2,760

E 5 R-190 CG (Cu) 2.85 40 7,500 52 16,000 110 2.8 2.0 700 370 1,700 9255 R-191 CG (NiCr) 2.85 45 6,500 45 15,000 103 3.1 1.7 700 370 1,700 9255 R-203 CG (Sb) 2.20 1202 11,600 80 36,000 248 4.2 2.2 750 400 1,100 5955 R-204 CG (B) 2.45 55 4,800 34 23,500 164 2.9 1.9 400 205 400 2055 R-391 CG (Br) 2.55 55 8,500 59 25,000 172 3.1 2.1 500 260 500 260

F 1 R-433 CG 1.65 70 5,800 40 24,100 167 1.5 2.8 700 370 1,800 980

CARBON GRAPHITE GRADE SELECTION GUIDE

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Chemical CompatibilityThe tables on this page present general grade recommendations forchemical service. However, a particular grade's resistance to chemi-cal attack can vary substantially according to temperature, concen-tration, and exposure time. Please consult with ROC Carbon'sapplications engineering staff to determine the appropriate gradefor your specific application.

Abietic Acid Acetaldehyde Acetanilide Acetic Acid to 350° F Acetic Anhydride to 350° F Acetone Acetophenone AcetyleneAcetylsalicylic Acid (Aspirin) AcroleinAcrylonitrileAdipic Acid Air to 600° FAir above 600° F AlkyI Aryl SulfonateAllyl Chloride Alum (ammonia)Alum (chrome)Alum (potash)Aluminum (molten)Aluminum ChlorideAluminum SulfateAmmonia (wet) to 300° FAmmonia (anhydrous) Ammonium ChlorideAmmonium Hydroxide Ammonium Nitrate Ammonium Phosphate .Amyl AcetateAmyl Alcohol Amyl Amines Amyl Chloride Aniline AnthraceneAntimonyArgon Arsenic (Molten)AsphaltAromatic Fuels Babbitt Metal (molten)Baking Soda Barium HydroxideBarium SulfideBattery Acid (90% H2S04)BeerBenzaldehydeBenzene (benzol)Benzene Sulfonic AcidBenzoic Acid Beta-Naphthol Bismuth (Molten) Black AshBlack Sulfate Liquor .Bleaching Powder BoraxBoric AcidBoron TrifluorideBrass (Molten) BromineBronze (Molten) Butadiene ButaneButter, ButtermilkButyl AcetateButyl Alcohol Butyl Amines ButyleneCadmium (Molten)Calcium BisulfiteCalcium ChlorideCalcium Hydroxide Calcium Hypochlorite

Carbolic Acid (Phenol)Carbon Dioxide to 600° FCarbon Dioxide above 600° FCarbon Disulfide Carbon MonoxideCarbon TetrachlorideCastor Oil Caustic Soda “Cellosolves”Cellulose Acetate (rayon)Chloracetic Acid Chloral“Chlorethene”Chlorine ChlorobenzeneChloroformChlorosulfonic AcidChromic Acid to 300° F Chromium Potassium SulfateCitric Acid (citrus juices)Coal TarCopper Copper SulfateCottonseed Oil Creosote Cresols, Cresylic AcidCrotonaldehyde Cumene Cupric ChlorideCuprous AmmoniumAcetate-ViscoseCyanic AcidCyanide Plating Solutions Cyclohexane Detergents Dibutyl Phosphate Diethanol Amine Diethyl Sulfate (Ethyl Sulfate) Disodium Phosphate“Dowtherm”Epichlorohydrin Ethane Ether (Ethyl Ether) Ethyl AcetateEthyl Alcohol Ethyl Benzene Ethyl Chloride and Dichloride Ethylene Ethylene Glycol Ethylene Oxide Fatty AcidsFerric Chloride Ferric SulfateFluorine gasFluorosilicic Acid FormaldehydeFormamide Formic Acid Freons Fruit juices Fuel Oil Furfural Gallium Gasoline Glutamic Acid Glycerine Gold (Molten)Green Sulfate Liquor Helium Hexane Hydrazine Hydrobromic AcidHydrochloric (muriatic) Acid

Hydrocyanic (Prussic) Acid Hydrofluoric Acid to 48%Hydrogen Hydrogen ChlorideHydrogen Fluoride Hydrogen SulfideHydrogen PeroxideHydroxylamineHypochlorous AcidIsobutyl/Isopropyl AlcoholsIsophthalic Acid Kerosene Lactic/Lauric Acids Lead (Molten) Lithium Carbonate Lithium HydroxideLubricating Oil LyeMagnesium (Molten) Magnesium BisulfiteMagnesium Sulfate Maleic Acid Maleic Anhydride Mercuric Chloride Mercury Methane Methyl Alcohol (Methanol) Methyl ChlorideMethylene Dichloride Methyl Ethyl Ether Methyl Ethyl Ketone Methyl Isobutyl Ketone Methyl Salicylate Milk Mineral Oil Molasses Monoethanol Amine Muriatic AcidNaphtha Naphthalene Nickel ChlorideNickel SulfateNitrating Acid to 75% total acid Nitric Acid to 15% Nitric Acid 15 to 100%Nitrobenzene Nitrogen Nitrogen TetroxideNitro Paraffins Oleic Acid Oleum (Fuming H2S04) to 100° F Olive Oil Ortho Phosphoric Acid to 400° F Oxalic Acid Oxygen to 500° F Oxygen above 500° F Palmitic Acid Paraffin Pentaerythritol Perchloric Acid to 72%, 200° F PerchloroethylenePetroleum Phenol Phosphoric Acid to 400° FPhosphorusPhosphorus Oxychloride Phosphorus TrichloridePhthalic Acid/AnhydridePicric Acid PolyethylenePolystyrene Polyurethane

Potassium AIumPotassium BicarbonatePotassium CarbonatePotassium Chlorate Potassium ChoridePotassium CyanidePotassium Hydroxide to 350° FPotassium Nitrate to 300° FPotassium Permanganate to 300° FPotassium Phosphate PropanePropionic AcidPropylene Pyridine Pyroligneous Liquor Sal AmmoniaSal Soda—Na2CO3 • 10 H20 Salicylic AcidSea WaterSewageSilverSoap and Soap Liquors Soda AshSodium Salts-see Potassium SaltsSodium BisulfiteSodium Dichromate Sodium Hypochlorite Sodium Metaphosphate Sodium Nitrate (Nitrate Melt)Sodium PerborateSodium Perchlorate Sodium SulfateSodium SulfideSodium Tetraborate (Borax)Sodium Thiosulfate (Hypo) Sorbitol Stannic ChlorideSteam to 600° FSteam 600 to 1500° FStearic Acid StyreneSugarSulfate LiquorsSulfite Liquors Sulfur Sulfur Dioxide to 500° FSulfuric Acid to 77%, 300° FSulfuric Acid 77-98% to 200° FTarTerephthalic Acid TetrachloroethyleneTinToluene Toluene Sulfonic Acid Toluic Acid Trichloroethylene Triethanol Amine Trisodium Phosphate TurpentineUrea Vegetable Oil Vinegar Vinyl Acetate Vinyl Chloride Viscose Water to 300° FWater Glass (Na2SiO3)Wood Pulp Xylene Zinc Zinc ChlorideZinc Sulfate

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CR Groups1 2 3 4 5

CR Groups1 2 3 4 5

CR Groups1 2 3 4 5

CR Groups1 2 3 4 5

Table 4 - Corrosion Resistance by Specific Chemical

TABLE 3 - Corrosion Resistance by Chemical Family

Neutral saltsAcid-forming salts

Alkali-forming saltsNonoxidizing mineral acids

Oxidizing mineral acidsNonoxidizing mineral alkalis

Oxidizing mineral alkalis

Neutral (solvents, oils, etc.)Acid-forming salts

Weak acidsStrong acidsWeak alkalis

Strong Alkalis

Neutral saltsAcid salts

Alkaline saltsOxidizing salts

Metals

InertAcid

AlkalineOxidizingReducing

CR 2✔✔✔✔❍✔✔

✔✔✔❍✔✔

❍❍❍❍❍

✔✔✔❍✔

CR 3✔✔✔✔✔✔✔

✔✔✔✔✔✔

✔✔✔❍✔

✔✔✔❍✔

CR 5✔❍❍❍❍❍❍

✔❍✔❍❍❍

❍❍❍❍❍

✔❍❍❍✔

CR 4✖✖✖✖❍✖✖

❍✖❍✖✖✖

❍❍✖❍❍

✔❍✖✔✔

Inorganic

Organic

Melts

Gases

CR Group

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ❍ ✔

❍ ❍ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

❍ ❍ ✔ ❍ ✖

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ❍ ✔

✔ ❍ ✔ ❍ ✖

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ❍

✔ ❍ ✔ ✖ ✖

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✖

✔ ✔ ✔ ✖ ✖

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

❍ ❍ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ❍ ✔ ✖ ✖

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

❍ ✖ ❍ ✔ ✖

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ❍ ✔

❍ ❍ ✔ ✖ ❍

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

❍ ❍ ❍ ✔ ✖

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ❍ ✔

❍ ❍ ✔ ✖ ✖

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ❍ ✔ ✖ ✔

✔ ✔ ✔ ✖ ❍

✔ ❍ ✔ ❍ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ❍ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

❍ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✖

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ✖ ✔ ✖ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ❍ ✔ ❍ ✖

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✖

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

❍ ❍ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

❍ ✖ ❍ ❍ ❍

❍ ✔ ✔ ✖ ❍

❍ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ❍ ❍

❍ ✖ ❍ ✔ ❍

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ❍ ✔ ❍ ❍

✔ ✔ ✔ ❍ ❍

✔ ✔ ✔ ✖ ✔

✔ ❍ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✔ ✔

✔ ❍ ✔ ❍ ✖

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✖ ❍

✔ ✔ ✔ ❍ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

❍ ✔ ✔ ✖ ❍

✔ ✔ ✔ ✔ ✔

✔ ❍ ✔ ❍ ❍

✔ ✔ ✔ ✖ ✔

✔ ✔ ✔ ✖ ✔

✔ Compatible ❍ Questionable ✖ Not Recommended

CR 1✔✔✔✔❍✔❍

✔✔✔✔✔✔

✔✔✔❍✔

✔✔✔❍✔

✔ = Compatible ❍ = Questionable ✖ = Not recommended Copyright 2008, ROC Carbon Company. All rights reserved.7

Chemical CompatibilityThe tables on this page present general graderecommendations for chemical service. However, a particulargrade's resistance to chemical attack can vary substantiallyaccording to temperature, concentration, and exposure time.Please consult with ROC Carbon's Technical Services staff todetermine the appropriate grade for your specific application.

ROCBON high-performance, reinforced fluorocarbon composites are unique in the plastic family and possessexceptional properties:

• chemical resistance• self-lubricating• thermal stability• moisture resorbant• contamination resistance • mechanical strength• electrical insulation

Grades and Applications1007 Virgin PTFE for packings, seals and bushings

1051 25% fiberglass-filled grade for common seals and bushings

1911 and 1921 Carbon/graphite-filled grades for bearings, piston rings, rider rings and various seals.An excellent combination that provides good service life. 1911 has 25% fill, 1921 has35% fill

1521 50% stainless steel-filled grade for bearings and valve seat applications where high loadand corrosion are primary concerns.

1821 Moly/bronze-filled grade for bearing and seal applications where high load strength isneeded. 55% bronze, 5% moly filled

1551 Ceramic-filled grade (25% mica) for applications where high wear resistance is required.

1621 35% carbon fiber-filled grade where high strength and high wear performance is sought;a high-performance composite grade.

SizesSolid cylinder: 1.5 inch to 6 inch diameter, 12 inches longTube: 1.5 inch to 15.875 inch diameter, 12 inches long

Larger sizes are available upon request

Technical SupportTechnical support is available to help select the proper grade for the application, and engineering designservice can be provided for the finished product. For fastest response, call our toll-free number.

ROCBON PTFE COMPOSITES

8

Not

es

1. T

he p

hysi

cal p

rop

ertie

s of

RO

C C

AR

BO

N g

rad

es m

ay v

ary

in r

elat

ion

to th

e m

old

ed p

art s

ize,

con

figur

atio

n an

d th

eap

plic

atio

n co

nditi

ons.

The

ab

ove

valu

es a

re ty

pic

al a

nd s

houl

d b

e co

nsid

ered

onl

y as

a g

uid

e or

ref

eren

ce.

2. E

stim

ated

wea

r ra

te (

in/h

r) =

(ap

plic

atio

n P

V)

*(w

ear

fact

or)

3. M

D =

mol

ded

dire

ctio

n; C

D =

cro

ss d

irect

ion

RO

CBO

N P

TFE

COM

POSI

TE P

RO

PERT

IES

Phys

ical

Pro

pert

yAS

TM T

est

Uni

ts10

07

1051

15

21

1551

16

2118

2119

1119

21M

etho

dVi

rgin

PTF

EG

lass

Stai

nles

s St

eel

Cera

mic

Carb

on F

iber

Mol

y/Br

onze

Carb

on/G

raph

iteCa

rbon

/Gra

phite

Sp

ecifi

c g

ravi

tyD

792

g/c

c2.

172.

243.

782.

202.

103.

902.

112.

10

Tens

ile s

tren

gth

@ b

reak

(M

D)

D63

8p

si

4,90

02,

100

2,50

02,

300

3,00

02,

300

1,80

01,

600

MP

a33

.814

.517

.215

.920

.715

.912

.411

.0(C

D)

psi

5,60

02,

900

2,90

02,

700

3,40

02,

700

2,20

02,

000

MP

a38

.620

.020

.018

.623

.518

.615

.213

.8

Elo

ngat

ion

@ b

reak

(M

D)

D63

8%

340

250

6565

6090

6050

(CD

)%

390

270

7070

6098

6555

Def

orm

atio

n un

der

load

(M

D)

D62

1%

12.0

9.5

2.8

2.8

10.0

3.6

6.0

5.5

(CD

)%

15.0

13.6

3.0

3.0

10.0

4.0

10.2

5.5

Flex

ural

str

eng

th, 3

% s

trai

nD

790

psi

1,50

01,

950

3,50

03,

200

2,40

03,

300

2,35

02,

400

MP

a10

.313

.524

.122

.016

.622

.816

.216

.6

Flex

ural

mod

ulus

D79

0p

si90

,000

190,

000

250,

000

250,

000

160,

000

210,

000

160,

000

180,

000

MP

a62

21,

313

1,72

71,

727

1,10

61,

451

1,10

61,

244

Com

pre

ssiv

e st

reng

th, 5

% s

trai

nD

695

psi

1,80

02,

200

4,00

03,

500

2,50

03,

000

2,50

02,

700

MP

a12

.415

.227

.624

.117

.220

.717

.218

.6

Har

dne

ss, D

urom

eter

—Ty

pe

D54

6270

7068

7064

66

Ther

mal

exp

ansi

on, x

10-5

(M

D)

D69

6in

/in/°

F7.

56.

45.

35.

34.

05.

66.

04.

6m

m/m

m/°

C13

.511

.59.

59.

57.

210

.110

.88.

3

(CD

)6.

24.

14.

04.

03.

64.

34.

74.

011

.27.

47.

27.

26.

57.

78.

57.

2

Lim

iting

PV

@10

0 fp

m,

—p

si*f

pm

10,5

0010

,500

20,0

0018

,000

20,0

0012

,500

20,0

0020

,000

72°

F (2

2°C

)M

Pa*

mp

m22

2242

3842

2642

42

Wea

r fa

ctor

(F)

x10

-10

—in

3 /min

66

22

65

610

lb/ft

/hr

cm3 /m

in13

.613

.64.

54.

513

.611

.313

.622

.6kg

/m/h

r

Coe

ffici

ent o

f fric

tion

stat

ic—

0.04

0.07

0.08

0.08

0.07

0.08

0.08

0.13

dyn

amic

0.05

0.12

0.10

0.10

0.08

0.09

0.09

0.16

9

Strength Temperature CoefficientGrade Composition Density Hardness Tensile Shear Flexural Limit, of Friction**

g/cc (HRR) psi psi psi °F

R-700 Virgin 1.32 126 14,500 7,700 24,700 500 0.34

R-710 15% PTFE filled 1.40 124* 11,000 N/A 19,000 500 0.11

R-720 15% glass filled 1.39 124 17,800 N/A 26,000 500 N/A

R-721 30% glass filled 1.49 124 24,500 14,000 33,500 500 N/A

R-730 30% carbon filled 1.40 124 32,700 14,000 51,000 500 0.28

R-740 30% carbon/PTFE filled 1.44 124 19,000 N/A 30,450 500 0.11

Values shown are typical properties, not guaranteed minimum values.*Estimated value (actual Shore 88)** Friction coefficients are measured under specific test conditions; actual values will vary with different operating parameters.

ROC Carbon offers a portfolio of PEEK thermoplastic grades that provide good chemical resistance and excellentphysical properties for applications including bearings, seals and other parts. Material grades are available as finishedparts per your specifications or as raw material blanks for machining.

General Properties• Good chemical resistance to alkalis, aromatic hydrocarbons, halogenated hydrocarbons, alcohols, greases, and oils• Self-lubricating• Thermal stability• Contamination resistance• Mechanical strength

Raw Material Availability Solid cylinders up to 20 inch diameter

Technical SupportTechnical support is available to help select the proper grade for your application, and engineering services can beprovided for designing the finished product.

PEEK (POLY ETHER ETHER KETONE)

PEEK MATERIAL PROPERTIES

10