Item Requirements
Article Name: Aluminium Plates for Propellant Tank Manufacturing
○ Type and Quantity
No.
Alloy
Temper
AMS Spec. (Form
Designation)
size(mm)
Q'ty
1
Al2219
O
AMS QQA 250/30
15 x 2000 x 4000
64
2
Al2219
T87
AMS QQA 250/30
15 x 2000 x 7000
60
3
Al2050
T84
AMS4413
120 x 2000 x 4000
2
※ AMS : Aerospace Material Specification
○ Requirement
1. Minimum Strength requirement
No.
Alloy
Temper
AMS Spec. (Form
Designation)
Thickness, mm
Tensile
stregnth, ksi
Yield
strength, ksi
1
Al2219
O
AMS QQA 250/30
15
-
-
2
Al2219
T87
AMS QQA 250/30
15
63
48
3
Al2050
T84
AMS4413
120
71
66
2. Confirmation of supplier’s technical assistance in the field of belows ;
- Welding characteristics
- Material properties at room and cryogenic temperature
- Formability at room and elevated temperature
- Microstructural characteristics according to heat treatment conditions
3. Delivery Schedule
- 1st Delivery time and quantity : within March 2016
No
Alloy
Quantity
1
Al2219-O
48
2
Al2219-T87
28
3
Al2050-T84
2
- 2nd Delivery time and quantity : within September 2016 and the rest of the plates
○ Delivery Item
1. Aluminium Plates described in the above table
2. Material Inspection Sheet (Chemical composition and strength evaluation)