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R-1441 — Glass

Material Id
Glass
Record Id
1441
Date
7/3/1963
Delta T (F)
13.26
Delta X (in)
0.9659
Density (lb/ft3)
138.7
Description
Annealed
Form
Block
K W Mk (W/mK)
7.3813
Manufacturer
Corning Glass Works
Material
Glass
Mean Temp (F)
30.12
R Value per Inch (ft2hF/BTU/in)
0.01954
Rsi per Inch (m2K/W/in)
0.003441
Standard
Nist Srd 81 API
Test Method
ASTM C 177
Trade Name
Pyrex® 7740

Source: NIST SRD 81 API

glass — record id 1441 · rsi per inch 0.00344113 m2K/W/in · r value per inch 0.0195396 ft2hF/BTU/in · date 7/3/1963 · k w mk 7.3813 W/mK | Insulation R Values | Engineering Database