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Up Topic Welding Industry / Inspection & Qualification / SA-269 ?
- - By Mikeqc1 (****) Date 01-12-2009 16:46
I have a PO that calls out SA 269 316/316l dual cert, I cannot find this in my ASME section II for materials.
I recieved a cert with the tube that states SA 479.
has SA 269 been changed?
Any info would help such as where is SA 269
MDK
Parent - - By js55 (*****) Date 01-12-2009 17:19
269 is SS tubing. 479 is bar stock.
Parent - - By Joseph P. Kane (****) Date 01-12-2009 17:30
So!  Another suspicious MTR!
Parent - By Mikeqc1 (****) Date 01-12-2009 17:37
yup, the best ones are in russian.
MDK
Parent - By Shane Feder (****) Date 01-14-2009 22:52
Joe,
I have a rejected MTR in front of me from UVJERENJE Br (No idea what country) that lists Standard / Specification : ASTM A-335 
Material / Grade of Steel: Gr P22
Further down the page it has "Cold drawn seamless carbon steel pipes confirming to specification ASTM A106 Gr B."
???????
Regards,
Shane
Parent - By Mikeqc1 (****) Date 01-12-2009 17:49
I think what has been done is they wanted an odd wall thickness and machined this tube.
Im going to kick it back to the powers that be and have them decide if this is what they want/need.
MDK

About the 269? where is this in the code? should this have read astm 269 ?
Parent - - By MBSims (****) Date 01-12-2009 22:57
If this is for pressure-retaining service, you can't manufacture tube or pipe from machining hot-rolled or cold-rolled bar.  The end product will be susceptible to rupture due to the directionality of the grain structure and inclusions/stringers.
Parent - - By Mikeqc1 (****) Date 01-13-2009 14:57 Edited 01-13-2009 17:26
MBsims,
You wrote "If this is for pressure-retaining service, you can't manufacture tube or pipe from machining hot-rolled or cold-rolled bar.  The end product will be susceptible to rupture due to the directionality of the grain structure and inclusions/stringers."
Now I must Question if this practice is acceptable..........
Doesn't this depend on the diameter? According to UG-14(b) it is permitted up to and including NPS 4 (DN 100) provided the other requirements of UG-14(b) are met.
From the code...
UG-14 Rods and bars  (b)
Except for flanges of all types , hollow cylindrically shaped parts (up to and including NPS 4 (DN100) may be machined from ROLLED or forged bar , provided that the axial length of the part is approx parallel to the metal flow lines of the stock.
Correct me if im wrong ...... but isnt cold drawn out of the question?
The dia of the tube i have is 3.75 this is smaller than NPS 4 ............ correct?
UG-14 indicates to me that this practice is acceptable within its limits.
MDK 
Parent - By Mikeqc1 (****) Date 01-14-2009 20:06
????? is that correct?
Parent - By Shane Feder (****) Date 01-14-2009 22:43
Mike,
I don't have ASME II with me but ASME IX has A269 listed as 316 / 316L / 304 / 304L and it is Seamless and welded tube.
Regards,
Shane
Up Topic Welding Industry / Inspection & Qualification / SA-269 ?

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