48K · large tow
SYT45S-48K
Wind blade spar caps, pultrusion, industrial parts
- Tensile strength
- 4,500 MPa
- Elastic modulus
- 240 GPa
- Linear density
- 3,200 g/km
- Elongation
- 1.7%
- Density
- 1.80 g/cm³
- Sizing
- Epoxy / unsized
SYT high-strength and SYM high-modulus grades from 1K to 48K, supplied under an annual allocation of 2,200 tonnes — with mill COA and GB/T test reports on every batch, and the dual-use export licence handled per shipment.
Three of our 27 specifications, chosen because most enquiries land here. Standard epoxy-sized tow for structural work, and unsized grades for customers who run their own impregnation.
48K · large tow
Wind blade spar caps, pultrusion, industrial parts
24K
Pressure vessels, pultrusion, sporting goods
12K · high strength
High-load structural parts, pressure vessels
Values are typical, from the mill's technical data sheets and tested to GB/T 3362 and GB/T 30019. Full data sheets available on request.
Two series, 27 specifications, tow from 1K to 48K. If your specification sits outside the table below, ask — most grades can be quoted on request.
| Series | Grades | Tensile strength | Modulus | Tow sizes |
|---|---|---|---|---|
| SYT45 | 45, 45S | 4,500 MPa | 240–260 GPa | 1K – 48K |
| SYT49S | 49S | 5,300–5,500 MPa | 255 GPa | 12K / 24K |
| SYT55 | 55S, 55T | 5,500–5,880 MPa | 290–295 GPa | 6K / 12K / 16K |
| SYT65 – SYT70 | 65, 65S, 70, 70G | 6,370–7,000 MPa | 295–324 GPa | 12K |
| SYM 35X – 60J | 10 high-modulus grades | 3,820–5,700 MPa | 330–588 GPa | 6K / 12K |
Unsized custom grades require a minimum order quantity. Standard epoxy-sized fibre tow is available with no minimum order.
Most delays in this trade come from paperwork, not from the fibre. Ours is settled before the container leaves.
Certificate of analysis from Zhongfu Shenying with every batch, plus test data to GB/T 3362 (tensile) and GB/T 30019 (linear density). Batch-to-batch comparison is possible on request.
Carbon fibre is a controlled item under China's dual-use export regulations. We apply for the licence per shipment and handle the procedure on our side.
An End-User and End-Use Certificate (EUC) is required before shipment. We will send the template; your signature is the only step on your side.
We are an independent distribution company, not the manufacturer. Our authorisation from Zhongfu Shenying, together with the 2,200-tonne allocation document, can be sent for your compliance file on request — before you place an order.
Standard bobbins packed in cartons — typical carton size 630 × 420 × 305 mm. Bobbin weight and spools per carton vary by grade. Shelf life 2 years when stored dry, cool and away from heat sources.
Our grades are supplied for civilian industrial use. Tell us the process and we will match the tow size and modulus to it.




We are an independent, authorised distribution company of Zhongfu Shenying.
Our quotes follow Zhongfu Shenying's official ex-factory pricing. We do not rely on markups for high margins; our primary objective is to meet the annual sales target set by the factory.
As an official channel partner for Zhongfu Shenying carbon fibre materials, we secure stable supply and manage all export formalities for you.
We specialise only in carbon fibre tow, including standard, high-strength and high-modulus grades. We supply mill COA, GB/T test reports, export licences and EUC documents for international buyers.
Tell us the grade, the tow size and roughly how much you need. We usually reply within one working day.
Qinghai, China
Monday to Friday, 09:00 – 18:00 (GMT+8). Emails outside these hours are answered the next working day.