Impact subsize specimen thickness

[ABHISHEK SINGH]

Dear Experts,

As per ASTM A370 below thickness subsize impact  specimen mentioned are:

10 x 7.5, 10 x 6.7, 10 x 5, 10 x 3.3, 10 x 2.5

Now my question are, if I am taking a sample size of 10 x 4.5. Is it acceptable?

Regards

Abhishek Singh

+917827309480

[Sourav Bohrays]

dear sir 

you cant use that size reffer only subsize mention in code

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[sriniva...@gmail.com]

Dear Mr. Abhishek, 

you can  take sub size specimen provided the specimen size shall not fall below 80% the actual thickness of test coupon . i.e if you are taking specimen against each welding process involved shall not be below 80% of weld deposit @ Test temperature 

if you are not able to take specimen within 80% of test coupon or each weld deposit , you need to apply temperature reduction as per code for size of the specimen you have taken

Regards,

Srinuvasarao

+971 564675865

[Sourav Bohrays]

you have to take size only mention in astm 370 bcuse astm mention temp reduction for that subsize for other subsize not mention in astm 370 how you will you decide temp reduction than what is use of code there will be some reason behind each nd every restriction mention in code

On Thu, 11 Jun 2020, 7:38 am ABHISHEK SINGH, <mech....@gmail.com> wrote: