Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p73
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 210022–212710

or
b. A 'low cycle fatigue life' of 10,000 cycles or more at 823 K (550° C) at a maximum stress of 1,095 MPa;
2. Niobium alloys having any of the following:
a. A 'stress‑rupture life' of 10,000 hours or longer at 1,073 K (800°C) at a stress of 400 MPa; or
b. A 'low cycle fatigue life' of 10,000 cycles or more at 973 K (700°C) at a maximum stress of 700 MPa;
1. C. 002. b. 3. Titanium alloys having any of the following:
a. A 'stress‑rupture life' of 10,000 hours or longer at 723 K (450°C) at a stress of 200 MPa; or
b. A 'low cycle fatigue life' of 10,000 cycles or more at 723 K (450°C) at a maximum stress of 400 MPa;
4. Aluminium alloys having any of the following:
a. A tensile strength of 240 MPa or more at 473 K (200°C); or
b. A tensile strength of 415 MPa or more at 298 K (25°C);
5. Magnesium alloys having all of the following:
a. A tensile strength of 345 MPa or more; and
b. A corrosion rate of less than 1 mm/year in 3% sodium chloride aqueous solution measured in accordance with ASTM standard G‑31 or national equivalents;
Technical Notes:
For the purposes of 1C002.b.:
           1. 'Stress-rupture life' should be measured in accordance with ASTM standard E-139 or national equivalents.
           2. 'Low cycle fatigue life' should be measured in accordance with ASTM Standard E-606 'Recommended Practice for Constant-Amplitude Low-Cycle Fatigue Testing' or national equivalents. Testing should be axial with an average stress ratio equal to 1 and a stress-concentration factor (Kt) equal to 1. The average stress ratio is defined as maximum stress minus minimum stress divided by maximum stress.
1. C. 002. c. Metal alloy powder or particulate material, having all of the following:
1. Made from any of the following composition systems:
Technical Note:
For the purposes of 1C002.c.1., X equals one or more alloying
elements.
a. Nickel alloys (Ni‑Al‑X, Ni‑X‑Al) qualified for turbine engine parts or components, i.e. with less than 3 non‑metallic particles (introduced during the manufacturing process) larger than 100 µm in 109 alloy particles;
b. Niobium alloys (Nb‑Al‑X or Nb‑X‑Al, Nb‑Si‑X or Nb‑X‑Si, Nb‑Ti‑X or Nb‑X‑Ti);
c. Titanium alloys (Ti‑Al‑X or Ti‑X‑Al);
d. Aluminium alloys (Al‑Mg‑X or Al‑X‑Mg, Al‑Zn‑X or Al‑X‑Zn, Al‑Fe‑X or Al‑X‑Fe); or
e. Magnesium alloys (Mg‑Al‑X or Mg‑X‑Al);

1. C. 002. c. 2. Made in a controlled environment by any of the following processes:
a. 'Vacuum atomisation';
b. 'Gas atomisation';
c. 'Rotary atomisation';
d. 'Splat quenching';
e. 'Melt spinning' and 'comminution';
f. 'Melt extraction' and 'comminution';
g. 'Mechanical alloying'; or
h. 'Plasma atomisation'; and
3. Capable of forming materials specified by 1C002.a. or