Quote:
Originally Posted by laserglass
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GLASS – TO – COPPER
Direct Seals: OFHC copper to any glass from 0080 to 7740 (pyrex).
Graded Seals: copper to quartz, using a pyrex graded seal.
Temperature range: -270°C, to temperature just below the softening point of the glass used.
GLASS – TO – STAINLESS STEEL
Direct Seals: Stainless Steel 304 to any glass from 0080 to 7740 (pyrex)
Graded Seals: Stainless Steel 304 to quartz, using quartz to pyrex gradd seal.
Temperature range: -270°C to 450°C
Seals with other types of stainless steels are available on request.
Ok Mark please clarify the statements: this mean that direct stainless to any glass is ok?
i didnt see anything about regular steel only stainless, thoughts?
I have some tacks/pins and earring backs that i pushed the pin directly into the back of hot glass (104 coe) so far no issues. i have used copper with both 104 and 33 with no issues.
ro