ASME PQR - Base Metals

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Dec 11, 2015

Base Metals (QW-403)

ASME Rated Metal: Select this box if the material has been rated by the ASME.

Stud Material: Enter the material used for the stud. Most related fields will be automatically completed if the material is selected from the Material Browser.

Base Metal: Enter the base material used in the test. This is the metal or alloy that is welded, brazed, or cut. Most related fields will be automatically completed if the material is selected from the Material Browser. Selecting a material as the "Base Metal 1" or "Stud Material" will select that material for "Base Metal 2" as well. However, another material may then be selected or entered independently for either field. The material with the lowest P- or S-Number should be entered first, as should an unrated metal. The second set of Base Metal fields is only applicable to groove and fillet welding. Stud welding will have a set of Stud Material fields and a set of Base Metal fields.

P- or S- Number: Enter the appropriate designation for the base material. This field will be automatically completed if the material is selected from the Material Browser. S-Number does not exist in the Code after 2008, so if 2009 or later is selected as the "Code year," this field will only allow P-Number.

Tensile Strength: Enter the tensile strength of the base metal. This field will be automatically completed if the material is selected from the Material Browser.

Thickness: Enter the coupon thickness used in the test. If a pipe is selected from the Pipe/Tube Browser, the nominal thickness of the pipe will be automatically inserted into the base material thickness field.

Diameter: If Pipe was selected as the "Product Form," enter the diameter of the pipe in this field. If a pipe is selected from the Pipe/Tube Browser, the diameter will be automatically inserted.

Base Metal notes: Enter additional notes about the base metal.

Preheat (QW-406)

Minimum preheat temperature: The minimum temperature in the weld joint preparation immediately prior to the welding; in the case of multiple pass welds, this refers to the minimum temperature in the section of the previously deposited weld metal immediately prior to welding.

Max. interpass temperature: The highest temperature in the weld joint immediately prior to welding; in the case of multiple pass welds, this refers to the highest temperature in the section of the previously deposited weld metal immediately before the next pass is started.

Preheat maintenance: The practice of maintaining the minimum specified preheat temperature - or some specific higher temperature - for a required time interval after welding or thermal spraying is completed, or until post weld heat treatment is initiated. This field is nonessential and will not appear on the PQR if left blank.

Preheat notes: Enter additional notes about the preheat process.

PWHT (QW-407)

PWHT type: Select the heat treatment that was performed subsequent to welding. UTT refers to Upper Transformation Temperature; LTT is Lower Transformation Temperature.

PWHT temperature: Enter the temperature of the post weld heat treatment.

PWHT holding time: Enter the actual post weld heat treatment time. This should be expressed in hours and decimals; for example, record a PWHT time of 4 hours and 15 minutes as 4.25.

PWHT notes: Enter additional notes about the PWHT that should be included with this PQR.