Data Sheets- Dimensions

Question 1

Design - Mill tolerance for rolled and welded Pipe

Answer 1

(+/-) 0.01”

Question 2

NDE- MAximum length of Crack, or Incomplete fusion allowed on a new weld

Answer 2

0”

Question 3

Flanges- Typical Flange Face Finish

Answer 3

125 - 250 (Micro in)

Question 4

Flanges - When mating flanges, the maximum amount of unparallel allowed

Answer 4

(1/16) (in/ft)

Question 5

Flanges - Max offset for bolt holes for mating flanges

Answer 5

1/8 in

Question 6

Welding - Maximum allowed size of open discontinuity in a bend test

Answer 6

1/8 in

Question 7

Welder- Thickness to qualify welder with UT

Answer 7

> = (1/4) in

Question 8

NDE- Min distance beyond the area to be examined to clean a part when performing an MT examination

Answer 8

1 in

Question 9

NDE- Min distance beyond the area to be examined to clean a part when performing a PT examination

Answer 9

1 in

Question 10

Repairs - Min radius of insert patch

Answer 10

1 in

Question 11

Repairs - Min radius of fillet- weld patch

Answer 11

1 in

Question 12

NDE- Suggested diameter of CML exam point

Answer 12

2 in

Question 13

Preheat Zone - Distance from start of the weld

Answer 13

Greater of : ( 3in or 1.5 T )

Question 14

PWHT Zone - Min width of band

Answer 14

3T

Question 15

NDE- Min length of Spot RT

Answer 15

6in

Question 16

Weld Qualify- Min weld length when qualifying a welder with RT/UT using a coupon or 1st production weld

Answer 16

6in

Question 17

Weld Qualify- Min weld length when qualifying a welding operator with RT/UT of a test coupon

Answer 17

6in

Question 18

Corrosion- Soil to Air Area - Distance in air from interface

Answer 18

6in

Question 19

Corrosion - Distance to dig when inspecting for Soil-To-Air corrosion

Answer 19

6 - 12 in

Question 20

NDE- Distance of eye-to-part to count as a Visual Exam

Answer 20

6 - 24in

Question 21

Corrosion- Soil-to-Air area- distance in soil from interface

Answer 21

12in

Question 22

NDE- Min upstream limit of intensive examination of injection point circuit

Answer 22

12in

Question 23

PWHT- Min overlap for PWHT when using multiple heats

Answer 23

12in or 1Ft

Question 24

Weld Qualify- Min weld length when qualifying a welding operator with RT/UT of first production weld

Answer 24

3in

Question 25

Underground- Min length of buried pipe to expose when excavating for inspection

Answer 25

6-8in

Question 26

Repairs- Max size of fillet weld patch on pipe

Answer 26

(1/2) Diameter of pipe

Question 27

Circuits- Min upstream limit of injection point circuit

Answer 27

Greater of ( 12in or (3 *Pipe Diameter))

Question 28

NDE- Min downstream limit of intensive examination of injection point circuit

Answer 28

10 Diameters

Question 29

Circuits - Min downstream limit of injection point circuit

Answer 29

Lesser of : 1. 1st Direction Change +25 ft past injection point 2. 2nd change in direction past injection point

Question 30

Linear Indication. Length?

Answer 30

Length is >= 3 times the width