EdStainless
I got your point about stabilization required after annealing but my question is:
ASTM clearly defined the minimum temperature for final heat treatment shall be 1121 C as per paragraph no. 5 so, may be stabilization or re-annealing shall be done at 1121 C as per ASTM requirements...
Luis
Quoted from special metals
"With the issuance of Code Case 1325-7 and the
common use of the term “800H”, there was no longer a need to refer to “Grade 2” because it was replaced by 800H, and the material that had been called Grade 1 became, simply, INCOLOY alloy 800".
So
Grade 1 = Alloy...
"Heat Treatment—The final heat treatment of UNSN08120 shall be 2150°F (1177°C) minimum, UNS N08810,2050°F (1121°C) minimum, UNS N08811, UNS N08890,2100°F (1149°C) minimum, and UNS N06811, 1920°F(1050°C) minimum" - quoted from ASTM para 5.1
EdStainless
Actually it is a straight pipe without any bend, this is my case.
As stabilization is one of heat treatment methods, i think it shall be done at 1120 C because ASTM is cleaely defining the minimum temperature for heat treatment shall be 1120 C as per paragraph no. 5 so, i surprised...
Luis
Thanks a lot for your reply.
Really i didn't get the meaning of the sentence sent from licensor "Material shall be procured in solution annealed and stabilized condition at 982 C for 3 hrs", is he asking for annealing at 982 or stabilization?
Another question, is it normally asking for...
EdStainless
Thanks a lot for your detailed explanation.
What i got from your explanation is that Alloy 800H is normally not required to be stabilized heat treatment and also it is not a code requirement and if happened it will be a special requirement after annealing at 1120 C as per ASTM...
EdStainless
This is a unit licensor special requirement and really i got confused about the meaning of this requirement.
Is the licensor asking for annealing at 982 C or additional stabilization heat treatment at 982 however, i think in both cases temperature shall be 1120 minimum as per ASTM...
Can anyone please help me to clearly explain the meaning of the following sentence mentioned in received datasheet for ASTM B407 material (Alloy 800H)
"Material shall be procured in solution annealed and stabilized condition at 982 C for 3 hrs"
What i got from ASTM standard is that minimum...
First of all, i'm sorry for double posting i was not aware about the rules.
Secondly, i'm asking about the difference between pressure value mentioned for each group materials individually and the one mentioned in table A-1?
For example, i have an already installed class 600 flange with...
Regarding spades thickness calculation, there is a specific equation in ASME B31.3 depends on many parameters and one of them is the internal design pressure.
Once applying this equation, thickness of spades appears with a certain value which may not allow me to install it between flanges...
Can anyone please explain the following paragraph related to SRL & DRL OF ASTM A106 pipes:
If definite lengths are not required, pipe may be ordered in single random lengths of 16 to 22 ft [4.8 to 6.7 m] with 5 % 12 to 16 ft [3.7 to 4.8 m], or in double random lengths with a minimum average of...
