All tests are in the G6 Position unless otherwise stated in the Special Notes.
 
    UA Test Process  Max Qualified Deposited Weld Metal Thickness Backing

F-Number

 Position

Pipe Diameter

Pipe Coupon Size

Filler Metals

Special Notes

    
 
 

UA-2

SMAW

0.560”

With or Without for F3  -  Required for F1, 2

1, 2, 3

ALL

2.875” O.D. and above

6” Sch. 40

E6010

Downhill Welding

  
 

UA-2

SMAW

     0.560” for F1, 2,      0.375” for F4

 With or Without for F3  -  Required for F1, 2, 4

1, 2, 3, 4

ALL

2.875” O.D. and above

6” Sch. 40

E6010 / E7018

 none  
 

UA-3A

GTAW & SMAW

0.500” for GTAW  Unlimited for SMAW

With or Without for GTAW  Required for SMAW

6 for GTAW  -  4, 3, 2, 1 for SMAW

ALL

2.875” O.D. and above

6” XXS

ER80S-B6 /E8018-B6

5% Chrome Test

  
  UA-5 GTAW & SMAW

 0.125” for GTAW   0.435” for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW -  4, 3, 2, 1 for SMAW

ALL

2.875” O.D. and above

6” Sch. 40

ER70S-2 /E7018

 none  
  UA-6 GTAW & SMAW

0.374” for GTAW  0.248” for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    4, 3, 2, 1 for SMAW

ALL

1” O.D. and above 

2” XXS

ER70S-2 / E7018 /E309

 none  
  UA-8

SMAW 

0.436” for F1, 2, 3 0.186” for F4

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

1” O.D. and above 

2” Sch. 80

E6010 / E7018

 none  
  UA-9T GTAW & SMAW

0.500” for GTAW Unlimited for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    4, 3, 2, 1 for SMAW

ALL

2.875” O.D. and above

6” XXS

ER70S-2 / E7018

 none  
  UA-10 GTAW & SMAW

0.186” for GTAW  0.250” for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    4, 3, 2, 1 for SMAW

ALL

1” O.D. and above

2” Sch. 80

ER70S-2 / E7018  

none  
  UA-11 GTAW & SMAW

0.125” for GTAW  0.739” for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    4, 3, 2, 1 for SMAW

ALL

2.875” O.D. and above

6” Sch. 80

ER70S-2 / E7018

 none  
  UA-12

GMAW-S 

Unlimited 

With or Without

6

ALL

2.875” O.D. and above

6” XXS

ER70S-6

GMAW—Short Circuiting Mode

  
  UA-12W

GMAW-S 

0.475” 

With or Without

6

ALL

2.875” O.D. and above

6” Sch. 80

ER70S-6

GMAW—Short Circuiting Mode

  
  UA Test Process  Max Qualified Deposited Weld Metal Thickness Backing

F-Number

 Position

Pipe Diameter

Pipe Coupon Size

Filler Metals

Special Notes

  
     
  UA-13

GTAW 

0.130” 

With or Without

No Filler Metal

ALL

0.675” O.D. and above

3/8” Sch. 10

 none

Manual Fusion

  
  UA-14

GTAW 

0.218” 

With or Without

No Filler Metal

ALL

1” O.D. and above 

2” Sch. 10

 none

Manual Fusion

  
  UA-15

GTAW 

0.436” 

With or Without

6

ALL

1” O.D. and above 

2” Sch. 80

ER70S-2

 none  
  UA-16

GTAW 

0.294” 

With or Without

6

ALL

0.840” O.D. and above

1/2 “ Sch. 80

ER70S-2

Very small diameter

  
  UA-17 GMAW-S & FCAW

0.137” for GMAW Unlimited for FCAW

With or Without for GMAW Required for FCAW

6

ALL

2.875” O.D. and above

6” XXS

 ER70S-6   /E71-T1

 GMAW—Short Circuiting Mode  
  UA-17W GMAW-S & FCAW

0.137” for GMAW  0.614” for FCAW

With or Without for GMAW Required for FCAW

6

ALL

2.875” O.D. and above

6” Sch. 80

 ER70S-6   /E71-T1

 GMAW—Short Circuiting Mode  
  UA-18

SMAW 

0.688” 

With or Without

1, 2, 3, 4

ALL

1” O.D. and above 

2” Sch. 160

E7018

 none  
  UA-18A

GTAW 

n/a 

n/a 

n/a 

n/a 

n/a 

n/a 

n/a 

Automatic Orbital Welding 

  
  UA-19

SMAW 

0.688” for F1, 2, 3 0.500” for F4

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

1” O.D. and above 

2” Sch. 160

E6010 / E7018

none  

  
  UA-21

SMAW 

0.872” for F1, 2, 3

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

1” O.D. and above 

2” XXS

E6010 / E7018

none  

  
  UA Test Process  Max Qualified Deposited Weld Metal Thickness Backing

F-Number

 Position

Pipe Diameter

Pipe Coupon Size

Filler Metals

Special Notes

  
                       
  UA-22

GTAW & SMAW 

0.250” for GTAW  0.622” for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    4, 3, 2, 1 for SMAW

ALL

1” O.D. and above 

2” XXS

ER70S-2 /E7018

 none  
  UA-23

SMAW 

Unlimited 

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

2.875” O.D. and above

6” XXS

E6010 / E7018

 none  
  UA-24

SMAW 

Unlimited 

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

2.875” O.D. and above

6” Sch. 120

E6010 / E7018

 none  
  UA-25

GTAW 

0.872” 

With or Without

6

ALL

1” O.D. and above

2” XXS

ER70S-2

 none  
  UA-26

GTAW & SMAW 

0.188” for GTAW  0.500” for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    4, 3, 2, 1 for SMAW

ALL

1” O.D. and above

2” Sch. 160

ER70S-2or3 / E7018

 none  
  UA-27

GMAW-S 

0.102” downhill    0.373” uphill

With or Without for Downhill Required for Uphill

6

ALL

2.875” O.D. and above

6” Sch. 80

ER70S-6 

Root-down / Balance-up

  
 

UA-28

SMAW 

0.864” for F1, 2, 3 0.614” for F4

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

2.875” O.D. and above

6” Sch. 80

E6010 / E7018

 none  
 

UA-30

GMAW-S & FCAW 

0.137” for GMAW  0.614” for FCAW

With or Without for GTAW Required for FCAW

6 

ALL

2.875” O.D. and above

6” Sch. 80

ER70S-6 / E71-T1

IG Rolled Test

  
 

UA-31B

GTAW 

0.560” 

Required 

22

ALL

2.875” O.D. and above

6” Sch. 40

ER5356

Aluminum Test,chill ring

  
 

UA-31J

GTAW 

0.560” 

With or Without

22

ALL

2.875” O.D. and above

6” Sch. 40

ER5356

Aluminum Test,J Bevel

  
  UA Test Process  Max Qualified Deposited Weld Metal Thickness Backing

F-Number

 Position

Pipe Diameter

Pipe Coupon Size

Filler Metals

Special Notes

  
                       
  UA-32

SMAW 

0.864” 

With or Without 

1, 2, 3

ALL

2.875” O.D. and above

6” Sch. 80

E6010

 none  
  UA-33

GTAW 

0.308” 

With or Without 

 34 & 41 thru 45

ALL

1” O.D. and above 

2” Sch. 40

ER NiCrMo-10

Nickel Alloy Test

  
  UA-34

GTAW 

0.218” 

With or Without 

 34 & 41 thru 45

ALL

1” O.D. and above 

2” Sch. 10

ER NiCrMo-10

Nickel Alloy Test

  
  UA-35

GTAW 

0.436” 

With or Without 

 34 & 41 thru 45

ALL

1” O.D. and above 

2” Sch. 80

ER NiCrMo-10

Nickel Alloy Wire / SA-106 Coupon

  
  UA-37

GTAW 

Unlimited 

With or Without 

n/a

ALL

Unlimited 

6” Sch. 120

ER70S-6

Machine Welding

  
  UA-41

GTAW 

0.436” 

With or Without 

6 

ALL

1” O.D. and above 

2” Sch. 80

ER309

Stainless Test

  
  UA-42

GTAW & SMAW 

0.250” for GTAW  0.622” for SMAW

With or Without for GTAW Required for SMAW

      6 for GTAW      5 for SMAW

ALL

1” O.D. and above 

2” XXS

ER309 /   E309-16

Stainless Test

  
  UA-43

GTAW & SMAW 

0.250” for GTAW Unlimited for SMAW

With or Without for GTAW Required for SMAW

      6 for GTAW      5 for SMAW

ALL

2.875” O.D. and above

6” XXS

ER309 /   E309-16

Stainless Test

  
  UA-44

GTAW 

Unlimited

With or Without 

n/a

ALL

Unlimited 

10” Sch. 100

ER309

Narrow Groove Test

  
  UA-45

GTAW 

0.218”

With or Without 

6

ALL

1” O.D. and above

2” Sch. 10

ER308

Stainless Test

  
  UA-46

SMAW 

0.688”

With or Without 

5 

ALL

1” O.D. and above

2” Sch. 160

E309-17 or 16 

Stainless Test

  
  UA-47

GTAW 

Unlimited

With or Without 

n/a

ALL

Unlimited

6” Sch. 80

ER70S-6

Machine Welding

  
  UA-48

GTAW 

Unlimited

With or Without 

n/a

ALL

Unlimited

10” Sch. 100

ER309

Remote Video Control

  
  UA-49

GTAW 

0.375” for Manual Unlimited for Machine

With/Without for Manual Required for Machine

6 for Manual

ALL

2.875” O.D. for Manual

6” Sch. 80

ER70S-2 & ER70S-6

Manual & Machine Welding

  
  UA Test Process  Max Qualified Deposited Weld Metal Thickness Backing

F-Number

 Position

Pipe Diameter

Pipe Coupon Size

Filler Metals

Special Notes

  
                       
  UA-60

SMAW 

Unlimited

With or Without for F3 Required for F1, 2, 4

1, 2, 3, 4

ALL

1” O.D. and above

2 3/4” O.D.

E6010 / E7018

Super Coupon Test

  
  UA-61

GTAW & SMAW 

0.250” for GTAW Unlimited for SMAW

With or Without for GTAW Required for SMAW

6 for GTAW    5 for SMAW

ALL

1” O.D. and above

2 3/4” O.D.

ER309 /   E309-16

Super Coupon Test

  
  UA-62