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Qualified Thickness ASME B31.3 with impact testing

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epit yot

Industrial
Jul 2, 2018
1
Newbie here. I hope someone can help me to understand code requirement for ASME B31.3 with impact testing.

As per table 323.3.1 box A-5, the qualified thickness range is T/2 - T + 6 mm (T base metal coupon). Is my understanding is correct for below condition?

Weld condition for procedure qualification.

Test Coupon T: 45 mm
Weld thickness t: 38 mm

Qualified thickness rage as per B31.3: 22.5 - 51 mm.

For ASME Sec IX, the range will be as below

Base metal range: 5 - 200 mm
Weld metal: maximum 200 mm.

If I'm not mistaken, ASME B31.3 doesn't specify weld thickness for qualification base metal thickness.

Please help.
Thank you

 
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