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SECTION IX

Subject Interpretation File No.

QW-201, Manufacturer’s or Contractor’s Responsibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX-04-26 BC05-1196

QW-405.2, Welding Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX-04-28 BC06-323

QW-407.1(b), Postweld Heat Treatment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX-04-29 BC06-462

Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX-04-27 BC05-1215

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Interpretation: IX-04-26

Subject: QW-201, Manufacturer’s or Contractor’s Responsibility

Date Issued: February 22, 2006

File: BC05-1196

Background: Two independent companies, A and B, form a Limited Liability Partnership (LLP) to perform

work requiring ASME Section I Code Stamp. The LLP has obtained valid ASME Certificates of Authorization.

Each company also has valid, existing ASME Certificates of Authorization. The organization’s effective

operational control of welding procedure qualification is described in each of the partner’s Quality Control

System Manuals and the LLP’s Quality Control System Manual.

The welding procedure qualification tests and production welding are under the full supervision and control

of the same individual representing both the LLP and company A.

Question: May the LLP use PQR’s qualified by company A after the formation of the LLP?

Reply: Yes.

Interpretation: IX-04-27

Subject: Units of Measurement

Date Issued: February 22, 2006

File: BC05-1215

Question (1): Is it acceptable to maintain welder performance qualification records in SI units, with a

conversion table as part of the welding manual to ensure that qualification limits are not exceeded?

Reply (1): Yes. Code Case 2523 provides information about when such conversions are required and the

requirements for performing such conversions.

Question (2): Is it acceptable to maintain welding procedure specifications that are dual dimensioned with

SI units primary and U.S. Customary units in parentheses, with a conversion table as part of the welding

manual to ensure that qualification limits are not exceeded?

Reply (2): Yes. Code Case 2523 provides information about when such conversions are required and the

requirements for performing such conversions.

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Interpretation: IX-04-28

Subject: QW-405.2, Welding Position

Date Issued: June 21, 2006

File: BC06-323

Question (1): If a Stud Welding Procedure Qualification is performed in the 4S position, does the same

procedure qualification qualify for the 1S position?

Reply (1): No.

Question (2): If a Stud Welding Procedure Qualification is performed in the 4S and 2S positions, does

the same procedure qualification also qualify for all positions?

Reply (2): No.

Interpretation: IX-04-29

Subject: QW-407.1(b), Postweld Heat Treatment

Date Issued: June 21, 2006

File: BC06-462

Question: Does QW-407.1(b)(2) address the temperature ranges for stress relieving, stabilizing, and/or

solution annealing heat treatments?

Reply: No, QW-407.1(b)(2) addresses PWHT within a specified temperature range. Section IX requires

the temperature range to be specified on the WPS and the PQR supporting the WPS be within the specified

PWHT temperature range (see the fourth paragraph of the Introduction).