Titanium & Titanium Alloy for Medical Applications

Exploring the Features of Medical Implant Devices

Titanium has many useful features including low specific gravity, half that of nickel, excellent corrosion resistance and strength, high biocompatibility, and non-magnetic properties useful for MRI application. With these advantageous features, titanium is an optimum material for medical prosthetic devices. To accommodate the wide range of increasing needs, Daido Steel has established a manufacture-logistics streaming system from raw material procurement to sales and distribution which is available for multiple products and small-lot.

Applications

Classification Parts Name Material
Implant
Artificial hip joint Stem, cup Pure titanium round bar
Titanium alloy round bar
Artificial hip joint   Pure titanium round bar
Titanium alloy round bar
Fracture fixation Plate, screw Pure titanium round bar
Titanium alloy round bar
Titanium alloy wire rod
Artificial heart Housing, case Pure titanium round bar
Artificial heart valve Frame Titanium alloy round bar
Density
Artificial dental root   Titanium alloy round bar
Jig Handpiece Pure titanium round bar
Dentition fixation Splint  
Surgery
Cerebral aneurysm Clip Titanium alloy round bar
Brace   Titanium alloy round bar
Catheter guide wire   Ni-Ti alloy wire rod
Fracture surgery Bolts Pure titanium wire rod
Body Sup.
Parts for artificial arms/hands/legs   Titanium investment-castings

Chemical composition

DAIDO BRAND Typical corresponding standard Chemical composition (wt.%)
N C H Fe O Al V Y Nb Ta
Individual

Total
Ti
DT1
JIS Class 1
≦0.03
≦0.08
≦0.013
≦0.20
≦0.15
-
-
-
-
-
-
-
Bal
ASTMF67
Grade 1
≦0.03
≦0.08
≦0.015
≦0.20
≦0.18
-
-
-
-
-
-
-
Bal
ISO 5832-2
Grade 1
≦0.03
≦0.06
≦0.013
≦0.15
≦0.12
-
-
-
-
-
-
-
Bal
DT2
JIS Class 2
≦0.03
≦0.08
≦0.013
≦0.25
≦0.20
-
-
-
-
-
-
-
Bal
ASTMF67
Grade 2
≦0.03
≦0.08
≦0.015
≦0.30
≦0.25
-
-
-
-
-
-
-
Bal
ISO 5832-2
Grade 2
≦0.05
≦0.06
≦0.013
≦0.20
≦0.18
-
-
-
-
-
-
-
Bal
DT3
JIS Class 3
≦0.05
≦0.08
≦0.013
≦0.30
≦0.30
-
-
-
-
-
-
-
Bal
ASTMF67
Grade 3
≦0.05
≦0.08
≦0.015
≦0.30
≦0.35
-
-
-
-
-
-
-
Bal
ISO 5832-2
Grade 3
≦0.05
≦0.06
≦0.013
≦0.25
≦0.25
-
-
-
-
-
-
-
Bal
DT4
JIS Class 4
≦0.05
≦0.08
≦0.013
≦0.50
≦0.40
-
-
-
-
-
-
-
Bal
ASTMF67
Grade 4
≦0.05
≦0.08
≦0.015
≦0.50
≦0.40
-
-
-
-
-
-
-
Bal
ISO 5832-2
Grade 4
≦0.05
≦0.06
≦0.013
≦0.30
≦0.35
-
-
-
-
-
-
-
Bal
DAT5E
JIS Class 60E
≦0.03
≦0.08
≦0.0125
≦0.25
≦0.13
5.50~
6.75
3.50~
4.50
-
-
-
≦0.10
≦0.40
Bal
ASTM F136
≦0.05
≦0.08
≦0.012
≦0.25
≦0.13
5.50~
6.75
3.50~
4.50
-
-
-
-
-
Bal
ISO 5832-3
≦0.05
≦0.08
≦0.0125
≦0.25
≦0.13
5.50~
6.75
3.50~
4.50
-
-
-
-
-
Bal
DAT67
ASTM F1295
≦0.05
≦0.08
≦0.009
≦0.25
≦0.20
5.50~
6.75
-
-
6.50~
7.50
≦0.50
-
-
Bal
ISO 5832-11
≦0.05
≦0.08
≦0.009
≦0.25
≦0.20
5.5~
6.5
-
-
6.5~
7.5
≦0.50
-
-
Bal

※Other trace elements

Mechanical properties

DAIDO BRAND Typical corresponding standard Tensile strength
(N/mm2)
0.2% Yield strength
(N/mm2)
Elongation
(%)
Reduction of area(%) Hardness Heat treatment
(annealing)
DT1
JIS Class 1
270~410
≧165
≧27
-
≧100
ASTMF67
Grade 1
≧240
≧170
≧24
≧30
-
ISO 5832-2
Grade 1
≧240
≧170
≧24
-
-
DT2
JIS Class 2
340~510
≧210
≧23
-
≧100
ASTMF67
Grade 2
≧345
≧275
≧20
≧30
-
ISO 5832-2
Grade 2
≧345
≧275
≧20
-
-
DT3
JIS Class 3
480~620
≧345
≧18
-
≧150
ASTMF67
Grade 3
≧450
≧380
≧18
≧30
-
ISO 5832-2
Grade 3
≧450
≧380
≧18
-
-
DT4
JIS Class 4
550~750
≧485
≧15
-
≧180
ASTMF67
Grade 4
≧550
≧483
≧15
≧25
-
ISO 5832-2
Grade 4
≧550
≧483
≧15
-
-
DAT5E
JIS Class 60E
≧825
≧755
≧10
≧25
-
ASTM F136
≧825
≧760
≧8
≧15
-
ISO 5832-3
≧860
≧780
≧10
-
-
DAT67
ASTM F1295
≧900
≧800
≧10
≧25
-
ISO 5832-11
≧900
≧800
≧10
≧25
-
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