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Impacts on A106 Grade B

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redandysafc

redandysafc

Mechanical
Dec 18, 2005
60
Can qnybody help me . I have a PQR for welding 2" sch 80 A333 Grade B with impacts on it Meaning by PQR according to QW403.6 is the minimum base metal thickness qualified is the thickness of the test coupon T or 5/8" (16mm) or whichever is less .However T is less than 6mm then 1/2t. Now I want to write a WPS using A106 Grade B material and this reqires no impacts could I still reference my PQR for A333 Grade B and start my thickness range from in this case 1.50-to double the thickness.
 
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No. A/SA 333 Grade 8 is a P-No 11A base material (9% Ni). Are you sure it is not a Grade 1,6 or 10 because these are considered P-No 1 base materials. You need to qualify on a P-No 1 base material for the SA 106 Grade B material.
 
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metengr the A333 is a grade B which is P number 1.2 not 11A according to CEN ISO/TR 15608:2005
 
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I have only have a copy of ASME SA 333-04 Specification (which by the way is close to the ASTM A 333-04 Specification), and I see no Grade B, only Grades 1 through 10. So, if you are telling me you have Grade B, I would check again.
 
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I must apologize metengr I have made the mistake the correct material is A333 Grade 6 which is 1.2 according to 15608.
 
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No problem. Yes, you can use this for your WPS.
 
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