welders qualification

Welders Qualification,According

To ASME Sec IX

POSITION AND

DIAMETER LIMITS

(With Other Limits Qw303)

PLATE - GROOVE

Plate andPipe Over 24 in (610 mm) OD

Pipe <=24 in (610) mm OD

Pipe and plate

Plate -Groove 1G F F (NOTE 2) FPlate -Groove 2G F, H F, H (NOTE2) F, HPlate -Groove 3G F, V F, NOTE2 F, H,VPlate -Groove 4G F,O F, NOTE2 F, H,OPlate -Groove 3G& 4G F, V, O F, NOTE2 ALL

Plate -Groove2G,3G,

&4GALL F,H NOTE2 ALL

Plate -GrooveSpecial Position

SP,F SP,F SP,F

Groove Fillet

Weld Position

Qualification Test Position And Type Weld Qualified (Note 1)

NOTE1: 1)Position Of Welding As Shown As Shown In QW-461 And QW-461.2F= Flat,H=Horizontal,V=Vertical,O=Overhead2)Pipe 2 7/8 in (72mm) OD and over  3) See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6 

Plate andPipe over 24 in (610 mm) OD

Pipe <=24 in (610) mm OD

Pipe and plate

Plate -Fillet 1F -- -- F NOTE 2Plate -Fillet 2F -- -- F, H NOTE2Plate -Fillet 3F -- -- F, H,V NOTE2Plate -Fillet 4F -- -- F, H,O NOTE2Plate -Fillet 3F &4F -- -- ALL NOTE2

Plate -FilletSpecial Position

-- -- SP,F NOTE2

NOTE

F= Flat H=HorizontalV=Vertical, O=Overhead

3)See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6

Groove Fillet

Weld Position

1)Position Of Welding As Shown As Shown In Qw-461 And Qw-461.2

2)Pipe 2 7/8 in (72mm) od and over

Qualification Test Position And Type Weld Qualified (Note 1)

PLATE - FILLET

Plate andPipe Over 24 in (610 mm) OD

Pipe <=24 in (610) mm OD

Pipe and plate

Pipe-Groove 1G F F F Pipe-Groove 2G F,H F,H F, H Pipe-Groove 5G F,V,O F,V,O ALL Pipe-Groove 6G ALL ALL ALL Pipe-Groove 2G&5G ALL ALL ALL

Pipe-GrooveSpecial Position

SP,F SP,F SP,F

NOTE

F= Flat H=HorizontalV=Vertical,1)Position Of Welding As Shown As Shown In Qw-461 And Qw-461.2

O=Overhead2)Pipe 2 7/8 in (72mm) od and over3)See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6

Groove Fillet

Weld Position

Qualification Test Position And Type Weld Qualified (Note 1)

PIPE-GROOVE

Plate and Pipe over 24 in (610 mm) OD

Pipe <=24 in (610) mm OD

Pipe and plate

Pipe-Fillet 1F -- -- F Pipe-Fillet 2F -- -- F, H Pipe-Fillet 2FR -- -- F,HPipe-Fillet 4F -- -- F,H,OPipe-Fillet 5F -- -- ALL

Pipe-FilletSpecial Position

-- -- SP,F

NOTE

F= Flat H=HorizontalV=Vertical,

Qualification Test Position And Type Weld Qualified (Note 1)

Groove Fillet

Weld Position

1)Position Of Welding As Shown As Shown In Qw-461 And Qw-461.2O=Overhead

2)Pipe 2 7/8 in (72mm) od and over3)See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6

PIPE – FILLET

POSITIONSQW-461

PLATE-GROOVEQW-461.3

1G

2G

3G

4G

PIPE-GROOVEQW-461.4

1G

2G

5G

6G

PLATE-FILLETQW-461.5

1F

2F

3F

4F

PIPE –FILLETQW-461.6

1F(Rotated)

2F

2FR(ROTATED)

4F

5F

Qualified With

Qualified For

X

X

X

XF-No5 with out

Backing

XF-No5 with

Backing

XF-No4 with out

Backing

F-No 4 with Backing X

XF-No3 with out

Backing X

F-No 3 with Backing X X X

XF-No 2 with out

Backing X

F-No 2 with Backing X X X X X

X XF-No 1 with out

Backing X

F-No5 with

Backing

F-No5 with out Backing

F-No 1 with Backing X X X X X X X

F-No 3 with

Backing

F-No3 with out Backing

F-No 4 with

Backing

F-No4 with out Backing

F-No 1 with

Backing

F-No 1 with out Backing

F-No 2 with

Backing

F-No 2 with out Backing

QUALIFIED WITH QUALIFIED FOR QUALIFIED WITH QUALIFIED FOR

F-NO 1 WITH BACKING F-NO 1 WITH BACKING F-NO 1 WITH BACKING

F-NO 1 WITH BACKING F-NO 2 WITH BACKING

F-NO 1 WITH OUT BACKING F-NO 3 WITH BACKING

F-NO 1 WITH BACKING F-NO 4 WITH BACKING

F-NO 2 WITH BACKING F-NO 1 WITH BACKING

F-NO 1 WITH BACKING F-NO 2 WITH BACKING

F-NO 2 WITH BACKING F-NO 3 WITH BACKING

F-NO 4 WITH BACKING

F-NO 4 WITH OUT BACKING

F-NO 1 WITH BACKING F-NO 1 WITH BACKING

F-NO 2 WITH BACKING F-NO 5 WITH BACKING

F-NO 3 WITH BACKING F-NO 1 WITH BACKING

F-NO 1 WITH BACKING

F-NO 2 WITH BACKING

F-NO 3 WITH BACKING

F-NO 3 WITH OUT BACKING

F-No 2 WITH OUT BACKING

F-No 3 WITH BACKING

F-No5 WITH OUT BACKING

F-No3 WITH OUT BACKING

F-No 4 WITH BACKING

F-NO 5 WITH OUT BACKING

F-NO 5 WITH BACKING

F-NO 1 WITH OUT BACKING

F-No 2 WITH OUT BACKING

F-No 2 WITH BACKING

F-No4 WITH OUT BACKING

F-No5 WITH BACKING

Test Specimens

TEST SPECIMENS [ QW-452.1(a)]

Thickness of weld metal,

IN(mm)

TYPE AND NUMBER OF EXAMINATIONS AND TEST SPECIMENS REQUIRED

Visual Examination per

QW-302.4

Side Bend QW-462.2 [note (1)]

Face Bend QW-462.3(a) Or

QW-462.3(b) [Note (1),(2)]

Root Bend qw-462.3(a) or QW-

462.3(b) [note(1),(2)]

LESS THAN 3/8 (10)

X --- 1 1

3/8(10) TO LESS THAN 3/4(19mm)

X 2 [NOTE (3)] NOTE (3) NOTE (3)

3/4(19MM) AND OVER

X 2 --- ---

Thickness Limits

Thickness of Weld Metal QualifiedThickness,t,of weld metal inch, The coupon inch(mm) [Note1&

2]

Thickness of weld metal Qualified

[Note3]

• Up to13 mm

•½(13mm) and over with a minimum of three layers

•2t

•Maximum to be welded

DIAMETER LIMITS

QW-452.3

GROOVE WELD DIAMETER LIMITS QW-452.3

WELDER

PERFORMANCE

ESSENTIAL

VARIABLES

SMAW (QW-353)PARAGRAPH BREAF OF

VARIABLES

QW-402 JOINTS DELETION OF BACKING

QW-403 BASE METAL

CHANGE OF

PIPEDIA(QW-403.16)

&CHANGE OF

P-NUM(QW-403.18)

QW-404 FILLERMETALS

CHANGE OF

FILLER (QW404.15) &

CHANGEOF

WELD t DEPOSIT (QW404.30)

QW-405 POSITIONS

ADDITION OF POSITION

(QW-405.1) &

VERTI& DOWN WELDING

(QW-405.3)

What Is UNS Number?

(Ans)

Unified Numbering System

What is SFA Number?  

(Ans)

Specification of Filler Analysis

What is P-Number?

(Ans)

Material Group Number