Active Austenite Finish Temperature
The austenite finish temperature of the finished tube (active Af) with outer diameter in the range of 0.3 to 3.0 mm (0.012 to 0.12 in.) shall be measured on representative full round tube sample(s) using the bend and free recovery method described in Test Method ASTM F 2082-15.
TheMechanical Properties
| Condition | UTS σb MPa |
Elongation δ% |
Upper Plateau Stress UPS MPa |
Permanent set after 6% strain % | Active Af ℃ |
| Superelastic | ≥1000 | ≥10 | ≥380 | ＜0.3 | ≤15 |
* Superelastic properties are measured per Test Method ASTM F2516 at room temperature （22+/-2C）
* Applicable Standard: ASTM F2633
Surface Finish
● Outer surface: Oxide or Centerless-ground.
● Inner surface: Etched or Oxide.
Other finishes can be discussed with ZHP Medical.
Nominal Dimensions and Tolerances
Dimensions tolerances of Guide Tube:
|
OD |
OD Tolerances |
ID Tolerances |
|
OD≤0.3mm |
±0.005mm |
±0.010mm |
|
0.3mm＜OD≤1.5mm |
±0.010mm |
±0.010mm |
|
1.5mm＜OD≤2.5mm |
±0.010mm |
±0.020mm |
|
2.5mm＜OD≤3.5mm |
±0.020mm |
±0.020mm |
|
3.5mm＜OD≤10.0mm |
±0.020mm |
±0.020mm |
|
10.0mm＜OD |
±0.030mm |
±0.030mm |
Dimensions tolerances of Stent Tube:
|
OD |
OD Tolerances |
ID Tolerances |
|
0.3mm＜OD≤0.6mm |
±0.010mm |
±0.010mm |
|
0.6mm＜OD≤1.5mm |
±0.013mm |
±0.013mm |
|
1.5mm＜OD≤2.5mm |
±0.015mm |
±0.015mm |
|
2.5mm＜OD≤3.5mm |
±0.015mm |
±0.015mm |
|
3.5mm＜OD≤5.0mm |
±0.020mm |
±0.025mm |
|
5.0mm＜OD≤8.0mm |
±0.020mm |
±0.025mm |
|
8.0mm＜OD |
±0.030mm |
±0.030mm |
* Other variation in OD and ID can be discussed with ZHP Medical.
