Asme Section Ix Wps Thickness Range

Date joints qw 402 details joint design base metals qw 403 p no.

Asme section ix wps thickness range.

Range of thickness qualified for test specimen thickness of 19mm to 38mm are 5 mm min. It mentions the minimum base metal thickness qualified is the thickness of test coupon t or 16mm whichever is less. 11 mm wall thickness pipe. And it will link to table qw 451 1.

Form qw 482 suggested format for welding procedure specifications wps see qw 200 1 section ix asme boiler and pressure vessel code organization name welding procedure specification no. Same f number and same a number tested in pqr. 1 asme section ix qw 424 within qualified thicknesses in pqr. By date supporting pqr no s welding process es type s revision no.

Any electrode diameter sizes can be used in wps t. However if your wps pqr with impact test the range base metal thickness qualified is t or 16mm whichever is less as per qw 403 6. For welding procedure qualification asme ix does not regard pipe diameter as an essential variable and thus procedure qualification testing using a particular pipe diameter will qualify pipe of any other diameter. Only filler metal categories with the same f number and same a number te sted in pqr.

Also qw 211 states that qualification in plate also qualifies for pipe welding and vice versa. Base metal thickness t. If the outside diameter of the test coupon is more than 73 mm or 2 7 8 inch then the minimum outside diameter for which the welder gets qualified is 73 mm or 2 7 8 inch and maximum outside diameter which he can weld is unlimited. As per asme section ix wps form is used to specify ranges of these all variables and pqr form is used to record the value of each essential variables non essential variables and supplementary variables.

2 for wps have to do impact tesct cnv test the range of thickness of base metal qualify. Thickness of test plate or pipe wall in pqr asme section ix table qw 451 1. To 2t 2 x 25 4 50 8mm max. For outside diameter 25 mm or 1 inch to 73 mm or 2 7 8 inch the minimum outside diameter for which the welder gets qualified is 25 mm or 1 inch and maximum outside diameter which he can weld is unlimited.

For test specimen thickness 25 4mm t qualified is 16mm to 50 8mm only.