Isostatic Graphite Overview

Transcription

1 Isostatic Graphite Overview Specialty Products Iso-Molded GES offers a set of four isostatically molded grades with a very fine grain size, increasing strength and density, and excellent machinability. These materials are perfect for applications including continuous casting, crucibles, heating elements, sintering trays, semiconductor process fixturing. Bulk Density Particle Size Electrical Resistivity Flexural Strength Compressive Strength Grade g/cm 3 inches / µm Ωinch /µωm psi / MPa psi / MPa PFI / / / / 76 Multi- Purpose PFI / / / / 102 PFI / / / / 121 PFI / / / / 138 PFE / / / / 95 EDM PFE / / / / 116 PFE / / / / 141 NOTE: QSB-001 Rev 5

2 Isostatic Graphite Grade - PFI-15 Description: PFI-15 is a general purpose, economical isostatic graphite with attractive high density and strength providing a fine grain material suitable for many popular applications. Permanent Molds Continuous Casting dies dia x length to x 16 x x 16 x 24 8 x 20 x x 20 x x 24 x x 25 x 60 Bulk Density ASTM C-838 lbs/ft g/cc 1.78 Max / Ave Particle Size ASTM C-559 inches / µm 50 / 15 Electrical Resistivity ASTM C-611 Ω-inch 4.6 µωm 11.5 Flexural Strength ASTM C-651 psi 5800 MPa 40 Compressive Strength ASTM C-695 psi MPa 78 Tensile Strength ASTM C-565 psi 3600 MPa 25 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 4.4 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 64 W/mK 110 Ash Content ASTM C-561 % 0.05 % 0.05 Hardness ASTM D-2240 Shore 60 Shore 60 QSTDS-026 REV 4

3 Isostatic Graphite Grade - PFI-25 Description: Grade PFI-25 is a material of choice when a fine grain isostatically molded graphite with greater strengths and densities than PFI-15 is required. Permanent Molds Continuous Casting dies Rocket Motor Nozzles Hot Pressing Molds and Punches 25 dia x x 24 x 40 Contact GES for other sizes available Bulk Density ASTM C-838 lbs/ft g/cm / µm 50 / 15 Electrical Resistivity ASTM C-611 Ω-inch 50 µωm 13 Flexural Strength ASTM C-651 psi 8000 MPa 55 Compressive Strength ASTM C-695 psi MPa 96 Tensile Strength ASTM C-565 psi 4800 MPa 33 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 4.8 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 72 W/mK 125 Ash Content ASTM C-561 % 0.05 % 0.05 Hardness ASTM D-2240 Shore 60 Shore 60 QSTDS-027 Rev 5

4 Isostatic Graphite Grade - PFI-35 Description: Grade PFI-35 is a material of choice when a fine grain isostatically molded graphite with greater strengths and densities than PFI-25 is required. Permanent Molds and Continuous Casting Dies Rocket Motor Nozzles Hot Pressing Molds and Punches 11 dia x 31 6 x 15 x 45 Contact GES for other available sizes Bulk Density ASTM C-838 lbs/ft g/cm / µm 50 / 15 Electrical Resistivity ASTM C-611 Ω-inch 47 µωm 12 Flexural Strength ASTM C-651 psi 8700 MPa 60 Compressive Strength ASTM C-695 psi MPa 161 Tensile Strength ASTM C-565 psi 5800 MPa 40 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 4.8 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 80 W/mK 140 Ash Content ASTM C-561 % 0.05 % 0.05 Hardness ASTM D-2240 Shore 66 Shore 66 QSTDS-028 Rev 6

5 Isostatic Graphite Grade - PFI-45 Description: Grade PFI-45 is the premium isostatically molded fine grain graphite in the GES portfolio suitable for the most demanding applications. Permanent Molds Continuous Casting dies Rocket Motor Nozzles Hot Pressing Molds and Punches dia x x 25 x x 20 x 40 Contact GES for other sizes available Bulk Density ASTM C-838 lbs/ft g/cm / µm 20 / 5 Electrical Resistivity ASTM C-611 Ω-inch 63 µωm 16 Flexural Strength ASTM C-651 psi MPa 72 Compressive Strength ASTM C-695 psi MPa 135 Tensile Strength ASTM C-565 psi 6500 MPa 45 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 6.0 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 50 W/mK 87 Ash Content ASTM C-561 % 0.10 % 0.10 Hardness ASTM D-2240 Shore 86 Shore 86 NOTE: QSTDS-029 Rev 5

6 Isostatic Graphite Grade - PFE-3 Description: Grade PFE-3 is an isostatically molded fine grain graphite with very fine grain with excellent properties suitable superior performance for EDM applications. Recommended for EDM Roughing, but also suitable for Finishing. 10 x 20 x x 24 x x 25 x 59 Contact GES for other sizes available Bulk Density ASTM C-838 lbs/ft g/cm / µm 50 / 15 Electrical Resistivity ASTM C-611 Ω-inch 43 µωm 11 Flexural Strength ASTM C-651 psi 7600 MPa 53 Compressive Strength ASTM C-695 psi MPa 93 Tensile Strength ASTM C-565 psi 4500 MPa 30 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 4.5 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 69 W/mK 120 Ash Content ASTM C-561 % 0.05 % 0.05 Hardness ASTM D-2240 Shore 60 Shore 60 QSTDS-030 Rev 3

7 Isostatic Graphite Grade - PFE-6 Description: Grade PFE-6 is a very fine grain isostatically molded graphite with excellent properties suitable superior performance for EDM applications. Recommended for EDM for finishing and detail work and close control roughing. 10 x 20 x x 24 x 40 Contact GES for other sizes available Bulk Density ASTM C-838 lbs/ft g/cm / µm 20 / 5 Electrical Resistivity ASTM C-611 Ω-inch 63 µωm 16 Flexural Strength ASTM C-651 psi MPa 76 Compressive Strength ASTM C-695 psi MPa 142 Tensile Strength ASTM C-565 psi 7250 MPa 50 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 5.0 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 46 W/mK 70 Ash Content ASTM C-561 % 0.10 % 0.10 Hardness ASTM D-2240 Shore 80 Shore 80 QSTDS-031 Rev 3

8 Isostatic Graphite Grade - PFE-9 Description: Superfine grain graphite Grade PFE-9, offers higher density and finer particle size than PFE-6. This superfine grain material is an industry standard for fine EDM finishing. General EDM finishing work with close tolerance requirements 3 x 12 x 24 Contact GES for other sizes available Bulk Density ASTM C-838 lbs/ft g/cm / < µm 15 / <5 Electrical Resistivity ASTM C-611 Ω-inch 53 µωm 13 Flexural Strength ASTM C-651 psi MPa 74 Compressive Strength ASTM C-695 psi MPa 138 Tensile Strength ASTM C-565 psi 6500 MPa 45 Coef. Thermal Expansion (to 100 C) ASTM E / F / C 5.8 Thermal Conductivity ASTM C-201 Btu-ft/hr-ft 2 F 50 W/mK 88 Ash ASTM C-561 % 0.10 % 0.10 Hardness ASTM D-2240 Shore 80 Shore 80 NOTE: QSRDS-032 Rev 5