Nickel titanium alloy and pure titanium wire
（１）Nickel titanium alloy
Excellent corrosion resistance same as titanium alloy with high shape recovery ability
Example of use : Medical use (endoscope, catheter), connector contacts, antistatic brush
Shape of our product :
Thin wire, ultra thin wire, plated wire (available of plating with various metals such as gold, nickel, etc.)
・Physical property
Ni cont.
（%）
54 - 56
Ti cont. Density Melting point Linear expansion coefficient Specific heat Thermal conductivity Specific electrical resistance
（%） （g/mm3)
（℃）
( × 10-5/K)
(J/(kg・K)) (W/m/℃ )
( Ω m)
residue
6.5
1250 ～ 1280
10
440
12.1
80 - 100
・Diameter and tolerance
Diameter range
φ 0.025 - φ 0.099mm
φ 0.100 - φ 0.199mm
φ 0.200 - φ 1.000mm
Tolerance
± 0.003
± 0.004
± 0.005
hair
20 μ m super thin NiTi wire
（a） Heat treated at 400℃
（d）> Af point
cooling
heating
deformation
（b）Room temperature
external stress
load
permanent set
load
load off
heating
load
load off
load off
（ｃ）Room temperature
Shape-memory alloy
strain
(a) Nomal metal alloy
strain
strain
（c）Superelastic
alloy
alloy
(b) Shape-memory alloy Shape-memory
（２）Pure titanium
Excellent characteristics of corrosion resistance and abrasion resistance
Example of use: Medical use (endoscope, catheter), connector contacts
Shape of our product: Thin wire, super thin wire
・Physical property
Density
（g/mm3)
4.5
m.p.
（℃）
1670
Young's modulus Linear expansion coefficient
Specific heat Thermal conductivity Specific electrical resistance
Poisson's ratio
( × 10-6/℃ )
（Gpa）
(J/(kg・K)) (W/m/℃ )
( Ω m)
106
0.34
8.4
520
17
47 - 55
・Diameter and tolerance
Diameter range
φ 0.025 - φ 0.099mm
φ 0.100 - φ 0.199mm
φ 0.200 - φ 1.000mm
10
tolerance
± 0.003
± 0.004
± 0.005