Nyob rau hauv domestically tsim qauv steel hlau ropes, feem ntau siv txoj kab uas hla yog feem ntau 6.283 hli, thaum txoj kab uas hla ntawm cov hlau hlau siv nyob nruab nrab ntawm 0.33 hli. Tsis tas li ntawd, lub zog tensile ntawm steel hlau hlua tau muab faib ua tsib qib sib txawv, tshwj xeeb 1470 N / mm², 1570 N / mm², 1670 N / mm², 1870 N / mm², thiab 1970 N / mm².
