S-Glass Filament Winding Yarn
High-strength S-glass fiber yarn designed for filament winding applications in aerospace and pressure vessels. Falls under HTS 7019.90.51 as 'other' glass fibers not specifically provided for elsewhere in heading 7019. Distinguished from textile yarns by industrial reinforcement purpose.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sized for weaving
Glass yarns sized for weaving fall under specific 7019.12 subheading
If considered synthetic textile yarn
Textile chapter treatment applies only if processed beyond glass fiber recognition
If chopped strands rather than continuous
Chopped glass fibers have separate 7019.90.40 classification
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Import Tips & Compliance
• Provide technical data sheets showing tensile strength >500 ksi for S-glass verification; ensure no textile finishing treatments that could shift classification; watch for minimum filament count requirements
Related Products under HTS 7019.90.51
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E-Glass Roving for Composites
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