Fiberglass yarn Nomenclature 　

[ Date:2014-4-27 Views:335 ]

Fiber Designation Glass-Cut	Nominal Filament Diameter (Microns)	Nominal Filament Diameter (Inches)
B	3.5	0.00012
C	4.5	0.00018
D	5	0.00021
DE	6	0.000256
E	7	0.00028
G	9	0.00037
H	10	0.00043
K	13	0.00051

US Glass System - Example: ECG 150 3/2 3.0S

The example above, identifies the following yarn:

E = electrical glass
C = continuous filament
G = average filament diameter of 0.00037"(9 Micron)
150 = 15,000 yards/lb. nominal bare glass in basic strand.
3/2 = two plies of 3-strand construction (total 6 basic strands)
3.0S = the number of turns per inch in the twist of the final yarn in the S direction

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