it was ft/lbs 12 ft-lbs table A1.15
but, i wonder about lateral expansion and shear frac % any 1 know if this could be the rejection cause?
sorry about not showing the unit of measure.
this order has really been messed up, 2 line items on the po
the first was a burned shape that was not normalized at the mill, cut then when they looked at the po ....oooops so they sent them out for treatment, then when i got them.....no impacts
the second was normalized at the mill but not impact tested
so...during my review of the MTR no impact results and no report for independent testing.
i received an E-mail saying "sorry we missed that part of the PO requirments will have the test done"
ok no big deal
i get the report with .an email saying the impacts failed, i think we should have the test bars normalized......
ya think, well anyway i guess thats why they were the cheapest bid, gotta train the new suppliers.
thanks to all for the input, ill need to call them to find out what the problem is.
i wonder if the report has fallen victim to cut and paste syndrome.
MDK
I know of no spec, code, etc. that requires numbers pass a requirement in both impact strength and lateral expansion. Some codes switch based upon materials or tensile strength, etc, but not both at the same time.
And they are not translatable.
And I gotta say, those numbers overall look low for 516-70, even at -50.
API 620 2008 Paragraph Q 2.2.3
c) The longitudinal charpy v notch impact values shall conform to table Q-2. (minimum 25ft-lb, 1 set can go to 20 without retest.
d) Each test shall consist of three specimens, and each specimen shall have a lateral expansion opposite the notch of not less than 0.015 in. (15 ml) as required by ASTM A353, A553, and A645.
Regards,
Gerald
Well, there ya go. As soon as you start makin absolute statements (even with proviso's) it'll surely bite ya in da azz.
thanks Gerald.
They are not the usual, but when you get into cryogenic service temperatures they start poping up.
And then when you get into really cryo's with fully austenitics they can completely go away.
As in using notched tensiles for nickels/coppers etc in B31.3, instead of impacts.
well, i have recieved the new reports for the imapct tests and the NORMALIZED test bars for the 2.5" did pass, and the .75" test report was victim to a mistake and has been changed, thanks for the input on this subject. I thought i was taking crazy pills for a minute.
MDK
If you have some pass them around