Alloys with a moderate resistance to stress-corrosion cracking
The data given here is for information only.
This table is divided according to the type of alloy.
These types are : Steel alloys, Aluminium alloys, Miscellaneous alloys
Table II - Steel Alloys
1) Tempering between 370 and 600C should be avoided because corrosion and stress-corrosion resistance is lowered.
Carbon steel (1000 series)
Low-alloy steel (4130,4340 etc)
400 series Martensitic stainless steel (403, 410, 416, 431)
PH 13-8 Mo stainless steel
15-5 PH stainless steel
17-4 PH stainless steel
125 to 140 kg/mm2 UTS
125 to 140 kg/mm2
Below H1000 (2)
2) H1000 = hardened above 538C (1000F).
Table II - Aluminium Alloys(1,2)
1) Mechanically stress relieved products (TX5X or TX5XX) should be specified where possible.
2024 rod, bar, extrusion
2024 plate, extrusions
(E) Russian Al-Li 1420 and 1421
soln. treat + age
2) Sheet, unmachined extrusion and unmachined plate are the most resistant forms.
3) Except for controlled tempers listed in footnote 3 of Table I, aluminium alloys. These alloys are not recommended for high-temperature applications. 66C (150F) and above.
(E) ESA classification - not in NASA MSFC-SPEC-522A.
Table II - Miscellaneous alloys
(E) ESA classification - not in NASA MSFC-SPEC-522A
Magnesium (E) ZW3