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1.DIAMETERS AVAILABLE: DIAMETER FROM 100MM TO 1050MM.
FOR RP GRADE, THE DIA IS USUALLY 100 -1060MM.
FOR RPI GRADE, THE DIA IS USUALLY 200 -650MM.
FOR HP GRADE, THE DIA IS USUALLY 300-650MM.
FOR SHP GRADE, THE DIA IS USUALLY FROM 400-650MM.
FOR SHP GRADE, THE DIA IS USUALLY FROM 400-650MM.

2. STANDARD GRADES – PROPERTIES: RP, RPI, HP,SHP &  UHP. (GE: ELECTRODES, GN: NIPPLES)
2.1). RP:
RESISTIVITY (UOM ): 8.0 FOR GE, 6.5 FOR GN
BENDING STRENGTH (MPA ): 9.8 FOR GE, 13 FOR GN
BULK DENSITY(G/CM3 ): 1.58 FOR GE, 1.66 FOR GN
C.T.E.(100 -600 C, 10 -6/C ): 2.9 FOR GE, 2.7 FOR GN
ASH: 0.4% FOR GE, 0.2% FOR GN
2.2). RPI:
RESISTIVITY (UOM ): 7.5 FOR GE, 6.2 FOR GN
BENDING STRENGTH (MPA ): 10.0 FOR GE, 14 FOR GN
BULK DENSITY(G/CM3 ): 1.62 FOR GE, 1.70 FOR GN
C.T.E.(100 -600 C, 10 -6/C ): 2.8 FOR GE, 2.6 FOR GN
ASH: 0.3% FOR GE, 0.2% FOR GN
2.3). HP
RESISTIVITY (UOM): 6.5 FOR GE, 5.5 FOR GN
BENDING STRENGTH (MPA ): 11 FOR GE, 15 FOR GN
BULK DENSITY(G/CM3): 1.64 FOR GE, 1.72 FOR GN
C.T.E.(100 -600 C, 10 -6/C ): 2.2 FOR GE, 2.0 FOR GN
ASH: 0.2% FOR GE, 0.1% FOR GN
2.4). SHP
RESISTIVITY (UOM): 6.0 FOR GE, 5.0 FOR GN
BENDING STRENGTH (MPA ): 12 FOR GE, 16 FOR GN
BULK DENSITY(G/CM3): 1.66 FOR GE, 1.75 FOR GN
C.T.E.(100 -600 C, 10 -6/C ): 2.0FOR GE, 1.8 FOR GN
ASH: 0.2% FOR GE, 0.1% FOR GN

2.5). UHP
RESISTIVITY (UOM): 5.5 FOR GE, 4.2 FOR GN
BENDING STRENGTH (MPA): 18 FOR GE, 20 FOR GN
BULK DENSITY(G/CM3): 1.68 FOR GE, 1.78 FOR GN
C.T.E.(100 -600 C, 10 -6/C): 1.6 FOR GE, 1.4 FOR GN