Research Article
Exploration of New Electroacupuncture Needle Material
Table 3
Comparison of cost, conductivity, and tensile strength of wire material (1st of July, 2010).
| | Material | Diameter (mm) | Material | Tensile strength (N/mm2) | Electrical conductivity
(% IACS) | Unit cost (1000 won/Kg) |
| | Ti-6Al-4V | 0.25 | C 0.08%, Al 5.5~6.5%, Ni 0.05%, O 0.13%, Ti 88~90.08%, V 3.5~4.5%, Fe 0.25%, H 0.013% | 2005 | 1.01 | 1720 | | Phosphor bronze | 0.25 | –0.35%, Sn 4.5–9.0% | 2131 | 15 | 16 | | SS 304 Ni | 0.2 | C 0.075%, Si 0.45%, Mn 1.25%, %, Ni 8.47% | 1685 | 25 | 22.5 | | SS 316 | 0.25 | C below 0.08%, Si below 1.0%, Mn below 2.0%, Cr 16~18%, Ni 10~14%, Mo 2.0~3% | 999 | 2.5 | 24.5 |
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