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Re: G10
Brian:
My Port Plastics Catalog has the following G10 information:
PORT PLASTICS, INC carries a full line of laminates that are available in
sheets, rods, tubes, or specialty shapes (angles, channels, zees, etc). As
compared to thermoformable plastics, which soften with heat, these are
thermoset plastics. Once the initial cure takes place it is not possible
to change the products basic shape without machining.
Thin sheets of resin impregnated materials (paper, cloth, or glass) are
laid upon each other; then under high heat and pressure, cure to form a
solid mass. Base materials are normally paper, cloth or glass fabric.
Resins normally used include phenolic, polyester, silicone, melamine and
epoxy systems. These variables yield an unlimited number of possibilities
for characteristics and properties needed for the most demanding
applications.
The following sizes are available:
ROD: .062" to 8.000" diameter (Some diameters machined from sheet)
SHEET: .01 5" - 16" Thick
12" X 12" to 48" x 120" size range Cut to size is another service PORT
PLASTICS, Inc. can offer with a tolerance as close as +/- .005". (Be sure
to check with your PORT PLASTICS branch for tolerances)
TUBE: 1/8" - 65" ID range - various OD's
PORT PLASTICS, INC. will stock custom sizes, formulations and grades.
NEMA Grade G-10
Micarta, Grade H-27092
Product Description:
This has a high flexural, impact and bond strength at room temperatures,
has good electrical properties under dry and humid conditions,
non-brominated resin system.
Applications:
Components for power generation and transmission industry.
Properties:
Density 0.069 lb/in3
Water Absorption 0.05%
Hardness (Rockwell) 109M
Bonding Strength 2,600psi
Compressive Strength (with grain) 60,000psi
Flexural Strength 69,000psi
Tensile Strength (with grain) 50,000psi
Impact Strength 12.0 ft-lb/in
Shear Strength (flatwise) 20,000psi
Volume Resistivity 6xl0^6
Dielectric Strength (perpendicular) 550vpm
Micarta Grade: H-27092
NEMA Grade: G-10
Specification Number & Type: MIL-1-24768/2/27-GEE
Construction Resin & Substrate: Epoxy/Glass
Serv. Temp: 130
Electr. °C 140
Color: Natural
Hope this helps!
*---------------------------*
* Kevin Ottalini *
* WhoSys / Who Systems *
* High Voltage with Style! *
* ottalini-at-mindspring-dot-com *
* Often in Another Reality *
*---------------------------*
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: G10
> Date: Monday, February 21, 2000 6:21 AM
>
> Original Poster: "Brian H Le Page" <b.h.le-page-at-surrey.ac.uk>
>
> Hi all
>
> I have been trying to find out what the English equivalent name for G10
is.
> Nobody in the composites group here has heard of it. Could someone
please
> post a description and specification. All I have gathered so far is that
it
> is a phenolic composite. Can anyone confirm/deny this? What is the
> reinforcement? What are it's mechanical properties?
>
> Thanks.
>
> Dr B
>
> Dr Brian H Le Page
> Composites Research Group
> School of Mechanical and Materials Engineering
> University of Surrey
> Guildford
> GU2 5XH
> Tel +44 (0)1483 300800 ext 2439
>