Table 1
Fiberglass Yarn Comparison Table
Twisted and Plied Products
Item
Nominal Yds./Lb.
Breaking Strength
Yarn Dia.
ECG 37-1/0-.5Z
3,700
14.0
.0156
ECG 75-1/0-.7Z
7,500
7.9
.0106
ECG 150-1/0-.7Z
15,000
4.1
.0080
ECE 225-1/0-1Z
22,500
3.0
.0065
ECD 450-1/0-1Z
45,000
1.7
.0026
ECD 900-1/0-1Z
90,000
0.8
.0033
ECG 37-1/2
1,825
25.6
.0224
ECG 37-1/3
1,208
38.4
.0261
ECG 37-1/4
906
51.2
.0302
ECG 75-1/2-3.8S
3,700
15.0
.0150
ECG 75-1/3-3.8S
2,500
23.0
.0180
ECG 75-1/4-3.8S
1,875
30.0
.0220
ECG 150-1/2-3.8S
7,500
8.2
.0117
ECG 150-1/3-3.8S
5,000
12.3
.0127
ECG 15O-1/4-3.8S
3,700
15.0
.0150
ECD 225-1/2-4.8S
11,250
6.0
.0094
ECD 225-1/3-4.8S
7,500
9.0
.0102
ECD 225-1/4-4.8S
5,625
12.0
.0130
ECD 450-1/2-4.8S
22,500
3.4
.0074
ECD 450-1/3-4.8S
15,000
5.1
.0077
ECD 900-1/2-3.8S
45,000
1.6
.0049
 
 
Table 2
Other Yarns
Yarns
Type
Deniers
Nylon
3,700
210 – 1260
Polyester
——
220 – 1100
Note: Monofilament yarns of nylon and polyester are available in various diameters.
Table 3
High Performance Yarns
Multiple Constructions
Yarns
Type
Deniers
Nomex®
430
200, 1200, 2400
Nomex®
432
200, 1200
Nomex®
433
200
Kevlar®49
965
55, 195, 380, 1140, 1420, 2160, 2840, 4320, 4560, 7100
Kevlar®49
968
195, 380,1140,1420, 2160, 2840, 4320, 4560, 7100
Kevlar®29
960
1500, 3000, 15000
Kevlar®29
962
1500, 3000
Kevlar®29
964
200, 400, 1000, 1500
Kevlar®29
985
200, 380, 400, 1000, 1140. 1150, 1500
Nomex® and Kevlar® are registered trademarks of the DuPont Company.


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