Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 70-37-32-370-501 Full Heat Treatment
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-010 ARGON GAS | LOCAL | CoMat 03-010 | ||
| CoMat 03-120 HELIUM GAS | 0B434 | CoMat 03-120 | ||
| CoMat 03-138 HYDROGEN GAS (PROTECTIVE ATMOSPHERE) | 0B434 | CoMat 03-138 |
Spares
NONESafety Requirements
WARNING
Procedure
Increase the temperature of the part to 1750 deg F +/- 25 deg F (954 deg C +/- 14 deg C) and hold for one hour. CoMat 03-010 ARGON GAS standard purity, CoMat 03-120 HELIUM GAS, CoMat 03-138 HYDROGEN GAS (PROTECTIVE ATMOSPHERE), argon or helium + hydrogen, or a vacuum is a permitted atmosphere. Heating rate is optional.
Decrease the temperature of the part at a rate of 35 deg F (19 deg C)/minute or faster to 1100 deg F (593 deg C) and not less than 15 deg F (8 deg C)/minute to 1000 deg F (538 deg C). Subsequent cooling rate is optional. For a vacuum, it is permitted to decrease the temperature by back-filling with either argon, hydrogen, argon-hydrogen mixture, or helium.
Solution Heat Treat.
Increase the temperature of the part to 1325 deg F +/- 25 deg F (718 deg C +/- 14 deg C), hold for eight hours, furnace cool at a rate of 100 deg F +/- 25 deg F (56 deg C +/- 14 deg C)/hour to 1150 deg F +/- 25 deg F (621 deg C +/- 14 deg C), hold at this temperature for eight hours. Subsequent cooling rate is optional. Air is a permitted atmosphere.
Alternatively, increase the temperature of the part to 1325 deg F +/- 25 deg F (718 deg C +/- 14 deg C), hold for eight hours, furnace cool at a rate of 125 deg F (70 deg C) maximum/hour to 1150 deg F +/- 25 deg F (621 deg C +/- 14 deg C), hold at this temperature for a total precipitation time of 18 hours. Subsequent cooling rate is optional. Air is a permitted atmosphere.
Precipitation Heat Treat.
SUBTASK 70-37-32-370-001 Full Heat Treatment Procedure