impact test

[stan000]

Hello Friends

Material: SA 387 GR 21, CL 1 Thickness: .350", MDMT 10°F 200 psig
is that i need IMPACT TESTING.

 

[SnTMan]

Very much depends on Code of Construction, if any.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[stan000]

ASME section viii div 1

 

[stan000]

my understanding yes.
UCS 66 - FIG- M.D.M.T VS THICK - Point locate above curve B
any opinion please.
Regards
stan

 

[weldtek]

Based on the limited information you've provided please look at Table UCS 66 Curve B materials up to 11/16" thick are exempt to +10 F

 

[212197]

as per table UCS-66M, for SA 387 grade21 curve C is applicable.

the combination of MDMT & THICKNESS comes above curve C. Hence impact is not applicable.

 

[Jano6924]

Just a clarification:

SA-387 Gr 21 and Gr 22 belong to curve C, IF normalized and tempered or liquid quenched and tempered. See Figure UCS-66 note (3)(a).

Regards.

 

[stan000]

yes it will be ON curve A BECAUSE IT IS PLATE.
NOT ON CURVE C. I Thought first will be on curve B.
NOW REGARDING SA 387- P3 group
ucs 66 MDMT & thickness curve - INTERSECTION POINT is below curve A. SO YES NEED IMPACT TESTING.

REGARDS
stan

 

[david339933]

So your plates must be annealed? If they are not, they must be normalized and tempered or liquid quenched and tempered per SA-387....and would then be Curve C as Jano6924 pointed out.

 

[212197]

stan000 (Mechanical)
(OP)
SA 387 is plate specification. It belongs to curve C only.


the combination of MDMT & THICKNESS comes above curve C. Hence impact is not applicable.


You may like to recheck your statement.