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UCS-67

UCS-67

(OP)
I have few questions regarding UCS-67:
1- Curve B material is exempt from impact testing by UCS-66 and MDMT is colder than -48C, is it required WPS be impact tested?
2- When Base metal is exempt from imapct testing by UG-20(f), UCS-67(b) requirements are still applicable?
3- When material is exempt from impact testing by UG-20(f), requirements of UCS-67(c)(2) are applicable?
4- Is it correct that WPS must be impact tested for Curve B and Curve C materials when MDMT is colder than -48C irrespective of the fact whether or not the either base metal is exempt from impact testing by UCS-66.

Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN

RE: UCS-67

(OP)
A little correction in Question 4 above.

4- Is it correct that WPS must be impact tested for Curve A and Curve B materials when MDMT is colder than -48C irrespective of the fact whether or not the either base metal is exempt from impact testing by UCS-66

Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN

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