China achieves stable mass production of T1100-grade carbon fiber

China has achieved stable large scale production of T1100 grade carbon fiber through a collaboration between Shenzhen University in southern China and Chang Sheng Technology Co., Ltd. in northern China, according to a report by China Media Group on January 13, 2026.

Production facilities operated by #ChangShengTechnology Co., Ltd. in Langfang, Hebei Province, are now manufacturing T1100 grade carbon fiber at a steady and high output level. The qualification rate of the product has consistently reached 95 percent.

#T1100 is considered one of the highest strength #carbonfiber grades currently used in industry. The filament exhibits a tensile strength of approximately 7,000 megapascals, which is about seven times stronger than high strength steel, while its weight is roughly one quarter that of steel. Each filament measures about 5 micrometers in diameter, making it thinner than a human hair, yet capable of withstanding significant mechanical loads.

Professor Zhu Caizhen from the College of Chemistry and Environmental Engineering at Shenzhen University explained that the primary technical challenge in large scale production lies in the initial formation of fiber precursors. He noted that swelling pores may develop in the precursors if manufacturing parameters are not precisely controlled. He added that smaller pore sizes in the precursor material contribute to greater strength in the final carbon fiber product.

These structural defects are difficult to eliminate during large scale manufacturing, complicating efforts to maintain consistent quality in high strength carbon fiber. Previously, large scale supply of T1100 grade carbon fiber was largely controlled by overseas producers.

Following more than 30 rounds of laboratory scale production adjustments, researchers at Shenzhen University optimized critical processing parameters and reduced the pore rate in precursor fibers by approximately 60 percent. This advancement enabled stable mass production of T1100 grade carbon fiber, reducing dependence on imports and enhancing the security of strategic materials supply in China.

Highlighting 10 advanced carbon fiber tows:

✅ T700 — Industry benchmark.

✅ T800 (ZA55GC-12K) — qualified into COMAC supply chain with Engineering Certificate.

✅ T1000 — Ultra-high strength, kiloton-level production.

✅ T1100 — Selected for C929 primary structures validation.

✅ M40Xseries — High-modulus breakthrough (≥5,490 MPa strength, ≥377 GPa modulus); 350t annual capacity, with M40–M55 expansions coming in 2026.

source : Advanced Carbons Council / Chang Sheng Technology Co., Ltd