The following passage describes the contrasts aspects of mechanical property, chemical compositions, straightness, tolerance, surface and shrinkage test for surgical implants between Mediti titanium bar with the same products abroad.
Mediti titanium bar compared with the same products abroad
|
SN |
Origin |
Grade |
Size |
Al |
V |
Fe |
C |
N |
H |
O |
|
1 |
Mediti |
TC4 |
14mm |
5.95 |
4.06 |
0.187 |
0.019 |
0.017 |
0.003 |
0.11 |
|
2 |
Mediti |
TC4 |
10mm |
6.01 |
4.10 |
0.169 |
0.016 |
0.019 |
0.001 |
0.09 |
|
3 |
Mediti |
TC4 |
6.0mm |
6.06 |
3.94 |
0.115 |
0.015 |
0.024 |
0.001 |
0.09 |
|
4 |
Mediti |
TC4ELI |
14.5mm |
6.27 |
4.23 |
0.152 |
0.014 |
0.025 |
0.001 |
0.013 |
|
5 |
U.S |
Ti-6AL-4V |
14mm |
6.07 |
4.06 |
0.104 |
0.029 |
0.013 |
0.002 |
0.12 |
|
6 |
U.S |
Ti-6AL-4V |
6.0mm |
6.41 |
3.72 |
0.085 |
0.021 |
0.03 |
0.006 |
0.15 |
|
7 |
U.S |
Ti-6AL-4VELI |
10mm |
5.93 |
3.97 |
0.122 |
0.02 |
0.012 |
0.002 |
0.12 |
|
8 |
U.S |
Ti-6AL-4VELI |
6.0mm |
5.94 |
4.02 |
0.168 |
0.015 |
0.008 |
0.002 |
0.1 |
|
9 |
TW |
Ti-6AL-4V |
13mm |
6.04 |
4.05 |
0.171 |
0.007 |
0.009 |
0.005 |
0.1 |
|
10 |
Ru |
Ti-6AL-4V |
6.0mm |
5.69 |
4.08 |
0.290 |
0.038 |
0.008 |
0.008 |
0.11 |
Table 1: Chemical composition contrast of titanium bar for surgical implants
Table 1 shows: all chemical compositions meet the standard requirement GB/T 3620.1, but for Mediti No.1,2,3, US No.5 & TW No.9, the chemical composition can reach the TC4 ELl. lt shows the requirement for ELI and the control of the impurity has reach the high level.
Table 2: Mechanical property contrast of titanium bar for surgical implants
|
SN |
Origin |
Grade |
Size |
Tensile strength Mpa |
Yeild strength Mpa |
Elongation |
Reduction of area |
Metallographic |
|
1 |
Mediti |
TC4 |
14mm |
1052 |
941 |
17 |
54 |
AL |
|
2 |
Mediti |
TC4 |
10mm |
1041 |
994 |
16.5 |
52 |
AL |
|
3 |
Mediti |
TC4 |
6.0mm |
1002 |
895 |
16.4 |
54 |
AL |
|
4 |
Mediti |
TC4ELI |
14.5mm |
1081 |
1001 |
15.5 |
46 |
AL |
|
5 |
U.S |
Ti-6AL-4V |
14mm |
1002 |
953 |
17.5 |
54 |
AL |
|
6 |
U.S |
Ti-6AL-4V |
6.0mm |
959 |
842 |
17 |
44 |
AL |
|
7 |
U.S |
Ti-6AL-4VELI |
10mm |
1060 |
915 |
15 |
54 |
AL |
|
8 |
U.S |
Ti-6AL-4VELI |
6.0mm |
980 |
855 |
14 |
32 |
AL |
|
9 |
TW |
Ti-6AL-4V |
13mm |
1060 |
995 |
18 |
45 |
AL |
|
10 |
Ru |
Ti-6AL-4V |
6.0mm |
1094 |
923 |
16.5 |
51 |
AL |
Table 2 shows: Al mechanical properties meet and exceed the standard requirements GB/T13810, but The tensile strength of Medti is relatively concentrated and better uniformity.
Table 3: Straightness, tolerance, surface and shrinkage test contrast of titanium bar for surgical implant
|
SN |
Origin |
Grade |
Size |
Bend test (mm/m) |
Diamater tolerance(mm) |
Shirinkage test |
|
|
1 |
Mediti |
TC4 |
14mm |
0.3 |
0,-0.027 |
-0.03 |
-0.03 |
|
2 |
Mediti |
TC4 |
10mm |
0.25 |
0,-0.022 |
/ |
/ |
|
3 |
Mediti |
TC4 |
6.0mm |
0.2-0.25 |
0,-0.018 |
/ |
/ |
|
4 |
Mediti |
TC4ELI |
14.5mm |
0.23 |
0,-0.020 |
-0.03 |
-0.03 |
|
5 |
U.S |
Ti-6AL-4V |
14mm |
0.2 |
0,-0.02 |
-0.05 |
-0.06 |
|
6 |
U.S |
Ti-6AL-4V |
6.0mm |
0.23 |
0,-0.024 |
/ |
/ |
|
7 |
U.S |
Ti-6AL-4VELI |
10mm |
0.21 |
0,-0.030 |
/ |
/ |
|
8 |
U.S |
Ti-6AL-4VELI |
6.0mm |
0.22 |
0,-0.023 |
/ |
/ |
|
9 |
TW |
Ti-6AL-4V |
13mm |
0.25 |
0,-0.03 |
-0.04 |
-0.05 |
|
10 |
Ru |
Ti-6AL-4V |
6.0mm |
0.2 |
0,-0.02 |
/ |
/ |
Table 3 shows: the diameter deviation and external quality of the ten groups of sample rods are controlled at the same level, For high-precision medical small-mouth products, Medti's unique production process can control the shrinkage of the products within 0.03mm.
Remark: The above dates shows that Medti's titanium bars' quality is equalled to American, Taiwan and Russian' s but with more stable quality and more attractive price.






