QW-257.1 Welding Variables Procedure Specifications (WPS) — Plasma‐Arc Welding (PAW)
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Table QW-257.1
Welding Variables Procedure Specifications (WPS) — Plasma-Arc Welding (PAW) (Cont'd)
Special Process Variables
Essential Variables
Hard‐Facing Overlay (HFO)
(QW-216)
Paragraph
QW-410
Technique
Corrosion‐Resistant Overlay
(CRO) (QW-214)
Hard‐Facing Spray Fuse
(HFSF) (QW-216)
.1
ϕ String/weave (HFO
and CRO only)
.3
ϕ Orifice/cup or
nozzle size
.5
ϕ Method of cleaning
.7
ϕ Oscillation
.25
ϕ Manual or
automatic
.26
±
.38
ϕ Multiple to single layer
ϕ Multiple to single layer
.41
ϕ > 15% Travel speed
ϕ > 15% Travel speed
ϕ Multiple to single layer
.43
ϕ > 10% Travel speed range
.44
ϕ > 15% Torch to workplace
.45
ϕ Surface preparation
.46
ϕ Spray torch
.47
ϕ > 10% Fusing temp. or
method
.48
ϕ Transfer mode
ϕ Transfer mode
.49
ϕ Torch orifice diameter
ϕ Torch orifice diameter
ϕ Transfer mode
.52
ϕ Filler metal del.
ϕ Filler metal del.
Legend:
> Increase/greater than
< Decrease/less than
↑ Uphill
↓ Downhill
50
← Forehand
→ Backhand
ϕ Change
Peening
This copy downloaded on 2015-07-13 07:36:37 -0500 by authorized user logan ahlstrom.
+ Addition
− Deletion
Nonessential Variables
for HFO, CRO, and HFSF
Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc. (www.techstreet.com).
ASME BPVC.IX-2015
No fu
Table QW-258
Welding Variables Procedure Specifications (WPS) — Electroslag Welding (ESW)
Paragraph
QW-402
Joints
QW-403
Base Metals
Brief of Variables
.1
ϕ Groove design
.10
ϕ Root spacing
.11
±
Retainers
X
.1
ϕ P‐Number
X
.4
ϕ Group Number
QW-407
PWHT
QW-409
Electrical
Characteristics
X
X
ϕ F‐Number
X
.5
ϕ A‐Number
X
.6
ϕ Diameter
.12
ϕ Classification
.17
ϕ Flux type or comp.
X
.18
ϕ Wire to plate
X
.19
ϕ Consum. guide
X
.33
ϕ Classification
.1
ϕ PWHT
.2
ϕ PWHT (T & T range)
X
X
X
X
X
T Limits
X
.5
ϕ ± 15% I & E range
.5
ϕ Method cleaning
.7
ϕ Oscillation
X
.10
ϕ Single to multiple electrodes
X
.15
ϕ Electrode spacing
.26
±
.64
X
X
X
Peening
X
Use of thermal processes
X
Legend:
+ Addition
− Deletion
↑ Uphill
↓ Downhill
> Increase/greater than
< Decrease/less than
51
← Forehand
→ Backhand
ϕ Change
This copy downloaded on 2015-07-13 07:36:37 -0500 by authorized user logan ahlstrom.
QW-410
Technique
X
.4
.4
Supplementary
Essential
Nonessential
X
t Pass > 1/2 in. (13 mm)
.9
QW-404
Filler Metals
Essential
Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc. (www.techstreet.com).
ASME BPVC.IX-2015
No fu
ð15Þ
Table QW-258.1
Welding Variables Procedure Specifications (WPS) — Electroslag Welding (ESW)
Special Process Variables
Essential Variables
Hard‐Facing Overlay (HFO)
(QW-216)
Paragraph
Corrosion‐Resistant Overlay (CRO) Nonessential Variables for HFO
(QW-214)
and CRO
QW-402
Joints
.16
<
Finished t
<
Finished t
QW-403
Base Metals
.20
ϕ P‐Number
ϕ P‐Number
.23
ϕ T Qualified
ϕ T Qualified
ϕ Nominal size of electrode
.6
QW-404
Filler Metals
.12
ϕ Classification
.24
±
or ϕ > 10% in supplemental filler ±
metal
or ϕ > 10% in supplemental filler
metal
ϕ A‐Number
.37
.39
ϕ Nominal flux comp.
ϕ Nominal flux comp.
.57
> Strip thickness or width
> Strip thickness or width
QW-406
Preheat
.4
QW-407
PWHT
.6
QW-409
Electrical
Characteristics
.4
Dec. > 100°F (55°C) preheat
> Interpass
Dec. > 100°F (55°C) preheat
> Interpass
ϕ PWHT
ϕ PWHT
.9
ϕ Current or polarity
ϕ Current or polarity
1st layer — Heat input > 10%
.26
1st layer — Heat input > 10%
ϕ Method of cleaning
.5
ϕ Oscillation (CRO only)
.7
.38
ϕ Multiple to single layer
.40
−
.50
ϕ No. of electrodes
Supplemental device
ϕ Multiple to single layer
−
Supplemental device
ϕ No. of electrodes
Legend:
+ Addition
− Deletion
> Increase/greater than
< Decrease/less than
↑ Uphill
↓ Downhill
52
← Forehand
→ Backhand
ϕ Change
This copy downloaded on 2015-07-13 07:36:37 -0500 by authorized user logan ahlstrom.
QW-410
Technique
Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc. (www.techstreet.com).
ASME BPVC.IX-2015
No fu
Table QW-259
Welding Variables Procedure Specifications (WPS) — Electrogas Welding (EGW)
Paragraph
QW-402
Joints
QW-403
Base Metals
Brief of Variables
.1
ϕ Groove design
.10
ϕ Root spacing
.11
±
Retainers
X
.1
ϕ P‐Number
X
.5
ϕ Group Number
.6
T Limits
.8
ϕ T Qualified
QW-406
Preheat
QW-407
PWHT
X
X
X
X
X
.4
ϕ F‐Number
X
.5
ϕ A‐Number
X
.6
ϕ Diameter
.12
ϕ Classification
.23
ϕ Filler metal product form
.33
ϕ Classification
.1
Supplementary
Essential
Nonessential
X
t Pass > 1/2 in. (13 mm)
.9
QW-404
Filler Metals
Essential
X
X
X
X
Decrease > 100°F (55°C)
.1
ϕ PWHT
.2
ϕ PWHT (T & T range)
.4
X
X
X
T Limits
X
QW-408
Gas
.2
ϕ Single, mixture, or %
.3
ϕ Flow rate
QW-409
Electrical
Characteristics
.1
>
.4
ϕ Current or polarity
.8
ϕ I & E range
X
.5
ϕ Method cleaning
X
.7
ϕ Oscillation
X
.8
ϕ Tube‐work distance
.9
ϕ Multiple to single pass/side
.10
ϕ Single to multiple electrodes
.15
ϕ Electrode spacing
.26
±
.64
X
Heat input
X
X
X
X
X
X
X
X
Peening
X
Use of thermal processes
X
Legend:
+ Addition
− Deletion
↑ Uphill
↓ Downhill
> Increase/greater than
< Decrease/less than
← Forehand
→ Backhand
GENERAL NOTE: Automated vertical gas metal‐arc welding for vertical position only.
53
ϕ Change
This copy downloaded on 2015-07-13 07:36:37 -0500 by authorized user logan ahlstrom.
QW-410
Technique
X
Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc. (www.techstreet.com).
ASME BPVC.IX-2015
No fu
