CARBON GRAPHITE PRODUCTS

For mechanical application distinguishes three main groups of grades identified be the two initial letters of the grade denomination:

FH carbon/graphite
FE electographite
FF resin bonded carbon
The following two numbers identify the different grades within the main material groups.
Example: FH42, FE45, FF51

The following third numbers indicate special manufacturing procedures:

  pressing partially pressing to size (only with FH and FF grades)
  is static pressing (only with FH and FE grades)
Example: FH421, FE679, FF511

Supplementary treatments and impregnations with metals, artificial resins and special salts are indicated by the following letters and letter number combinations added to the grade denomination:

-A antimony
-B lead-antimony
-C copper
-Z2, Z5 phenolic resin, cured
-ZH2, ZH5 phenolic resin, specially cured for working temperatures up to 260C
-ZP2, ZP5 polyester resin, cured
-S redensified with carbon
-Y2, Y3, Y5 redensified with carbon
-Q for FE grades: treatment to improve oxidation stability
-M slat impregnation to improve dry running capacity
-Examples: FH82A, FH42B, FH44C, FH42Z2/Z5, FH82ZH2/ZH5, FH42ZP2/ZP5, FE45S, FH42Y3,
FE67Q, FE67M.
-Differences between Z2, ZH2, ZP2 and Z5,ZH5,ZP5
-Z2, ZH2, porosity
-zp2 ? 4 vol. %
-Z5, ZH5, gas density inspection of the finished part or porosity ?1.5 vol.-%
 
CARBON & GRAPHITE FOR MECHANICAL APPLICATION STANDARD GRADES
 

Application fields

Characteristics

Multipart sealing rings and steam header seals of bigger dimensions Carbon / graphite -FH27S-
Bearings, running under liquids and, at low sliding speed, running dry Carbon / graphite -FH42-
Bearing running at higher load under liquids in chemical pumps and flow meters Carbon / graphite -FH42Y3-
Multipart sealing rings, mechanical seal, rotary valves and valves seats Carbon / graphite -FH44Y2-
Bearing running under liquids and, at lower sliding speed, running dry Carbon / graphite -FH44Y3-
Multipart sealing rings, back-up rings, metal-clad sealing rings, end-plates Electro graphite -FE45S-
Multipart sealing rings, labyrinth seals and mechanical seal rings Electro graphite -FE45Y2-
Bearings, running dry or wet at high temperatures and under chemically aggressive media Electro graphite -FE45Y3-
Vanes and bearings, running dry at high temperatures Electro graphite -FE65-
Vanes, running dry Electro graphite salt impregnated -FE67M-
Multipart sealing rings and mechanical seal rings of bigger dimensions Carbon / graphite resin impregnated -FH27Z2-
Bearings, running under liquids at higher load, vanes for vane cell pumps and flow meters, pump components, and blanks Carbon / graphite resin impregnated -FH42Z2-
Seal rings for mechanical seals feeder head seals, thrust bearings at higher load Carbon / graphite resin impregnated -FH42Z5-
Bearings running under liquids, dry running bearings for industrial drying plants, vanes, mechanical seal rings, rotary valves, valve seats, and blanks Carbon / graphite resin impregnated -FH44Z2-
Mechanical seal rings, also under unfavourable lubricating conditions, valve seats Carbon / graphite resin impregnated -FH44Z5-
Mechanical seal rings, blanks Carbon / graphite resin impregnated -FH82Z2-
Sealing rings for mechanical seal and feeder head seals at higher load, thrust bearings at higher load Carbon / graphite resin impregnated -FH82Z5-
Multipart sealing rings and mechanical seal rings, dry running bearings and bearings under aggressive media Electro graphite resin impregnated -FE45Z2-
Sealing rings and bearings at higher load and under liquids and liquefied gas Carbon / graphite antimony impregnated -FH42A-
Bearing for circulating heating pumps and water pumps Carbon / graphite lead antimony impr. -FH42B-
Multipart and solid sealing rings and wet or dry running bearings Carbon / graphite lead antimony impr. -FH44B-
Mechanical seal rings, bearings Carbon / graphite copper impregnated -FH44C-
Mechanical seal rings at higher and temperature, thrust bearings at high load Carbon / graphite antimony impregnated -FH82A-
Bearings and sealing rings at high temperatures Carbon / graphite antimony impregnated -FE45A-
Pressing to size of small parts in mass production such as sealing rings and bearings Resin bonded -FF501-
Pressing to size of small parts in mass production such as sealing rings, bearings, and pump components Resin bonded -FF521-
Sealing rings, e.g. for automotive cooling water pumps, and other mass production parts, e.g. bearings and pump components Resin bonded -FF931-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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