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R-1440 — Glass
- Material Id
- Glass
- Record Id
- 1440
- Date
- 7/2/1963
- Delta T (F)
- 13.23
- Delta X (in)
- 0.9659
- Density (lb/ft3)
- 138.7
- Description
- Annealed
- Form
- Block
- K W Mk (W/mK)
- 7.7999
- Manufacturer
- Corning Glass Works
- Material
- Glass
- Mean Temp (F)
- 122.55
- R Value per Inch (ft2hF/BTU/in)
- 0.018491
- Rsi per Inch (m2K/W/in)
- 0.003256
- Standard
- Nist Srd 81 API
- Test Method
- ASTM C 177
- Trade Name
- Pyrex® 7740
Source: NIST SRD 81 API